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January 2021

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JANUARY <strong>2021</strong><br />

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Editor’s Comment<br />

MATT DOWNS<br />

EDITORIAL DIRECTOR<br />

MATTDOWNS@MEDIA-NOW.CO.UK<br />

07963 330774<br />

Highest uninterrupted airflow rate.<br />

Use in wind uplift zones 1-4.<br />

Warm roof or cold.<br />

The past year has thrown so much at those operating in construction.<br />

Alongside the everyday challenges of operating a business or carrying out<br />

work on site, they’ve had to keep up with changing guidelines and<br />

restrictions due to Covid-19, plus keep pace with consultations and<br />

announcements from government as it attempts to overhaul and prepare<br />

the sector for future challenges and targets.<br />

In amongst this recent flurry of guidance documents was the government’s<br />

Construction Playbook, which James Talman, NFRC Chief Executive, says<br />

“could be one of the most transformative policies our industry has ever<br />

seen in recent times.”<br />

Visit www.protectmembranes.com/vikingair to read about our<br />

independently certified air & vapour permeable roof underlay.<br />

Cover image courtesy of Glidevale Protect: Find out more about<br />

their range of solutions at: www.protectmembranes.com<br />

FOLLOW US @TOTCONTRACTORUK<br />

SIGN UP FOR YOUR E-NEWSLETTER AT<br />

WWW.TOTAL-CONTRACTOR.CO.UK<br />

Whilst the Playbook is targeted at those in government departments who<br />

commission the work and attempts to overhaul the way government<br />

procures construction projects – “moving away from a focus on cost to<br />

whole life value” – as James explains in his article on page 16, “its<br />

principles and policies will have ripple effects down the whole supply<br />

chain”, including impacting how roofing and cladding contractors operate.<br />

Advertising:<br />

Publishing Director: Andy Dunn<br />

DD: 01892 732 047<br />

Mob: 07963 330777<br />

Email: andydunn@media-now.co.uk<br />

Commercial Manager: Jake Roxborough<br />

DD: 01892 732 047<br />

Mob: 07956 133314<br />

Email: jakeroxborough@media-now.co.uk<br />

Elsewhere in this issue, Simon Blackham and Richard Clennell of IMA<br />

member companies Recticel and Bauder answer questions on tapered<br />

systems (p20); Stuart Nicholson of Marley says there are opportunities for<br />

roofers as solar demand is set to surge (p24); Building Innovation’s Darren<br />

Smith outlines the key considerations when insulating existing flat roofs<br />

(p34); and Makita UK’s Kevin Brannigan explains why safe and convenient<br />

tool access is crucial on projects (p56).<br />

So read on for all this and much more!<br />

find us on facebook<br />

Matt<br />

£345<br />

LY<br />

Including<br />

delivery<br />

The content of Total Contractor magazine (and website) does not necessarily reflect the views of the editor or publishers and<br />

are the views of its contributors and advertisers. The digital edition may include hyperlinks to third-party content, advertising,<br />

or websites, provided for the sake of convenience and interest. The publishers accept no legal responsibility for loss arising<br />

from information in this publication and do not endorse any advertising or products available from external sources. No part<br />

of this publication may be reproduced or stored in a retrieval system without the written consent of the publishers. All rights<br />

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JANUARY <strong>2021</strong> TC 3


Contents<br />

3 KEY FEATURES<br />

20 TAPERED QUESTIONS<br />

Simon Blackham and Richard Clennell, of IMA<br />

members Recticel and Bauder, offer insight into<br />

the considerations contractors need to be aware<br />

of when installing a tapered roofing system<br />

24 SOLAR SURGE<br />

With the demand for renewables set to soar<br />

over the next few years, Stuart Nicholson says<br />

it’s never been easier for contractors to add<br />

solar to their offering<br />

34<br />

30 TALES OF THE UNEXPECTED<br />

Justin Pittman looks back on two projects<br />

which show just how quickly the best planning<br />

can go out the window, and why it’s crucial to<br />

expect the unexpected on roofing projects<br />

22<br />

FURTHER READING<br />

28 WIDE-RANGING BENEFITS<br />

With a surge in demand for building products, Lewis<br />

Turnbull says large format roof tiles can help...<br />

32 EPDM: OFFER A LITTLE MORE<br />

Rob Hunt says there are opportunities to add a little<br />

more by using EPDM on small projects such as log stores<br />

34 EXISTING PROBLEMS<br />

Darren Smith talks through the key considerations when<br />

when carrying out work on existing flat roofs<br />

36 WINDOW OF OPPORTUNITY<br />

Paul Edwards provides best practice installation advice as<br />

demand continues to grow for roof windows<br />

42<br />

42 THERMAL PERFORMANCE<br />

Simon Fielden explains why contractors must pay attention<br />

to the selection of rainscreen subframes<br />

56 HANDS-ON TOOL ASSISTANCE<br />

Kevin Brannigan says safe access to tools on projects is<br />

so crucial and outlines some of solutions for roofers<br />

4 TC JANUARY <strong>2021</strong>


REGULARS<br />

16 NFRC ROOFING FOCUS<br />

James Talman says roofing and cladding<br />

contractors need to take note of what the<br />

government’s new Construction Playbook<br />

means for them...<br />

22 PERFECTLY PITCHED<br />

John Mercer explains why it’s important not to<br />

overlook the details when it comes to<br />

weathering junctions with the main roof<br />

tiling on features like dormer windows<br />

51 QI BY QI COLUMN<br />

In the latest instalment of their regular<br />

column, the insulation experts at QI discuss<br />

the difference between buying XPS by the m²<br />

rather than m³...<br />

SECTIONS:<br />

TOTAL<br />

ROOFING<br />

22<br />

TOTAL<br />

CLADDING<br />

42<br />

INDUSTRY NEWS<br />

06 LANGLEY SCOOPS TOP AWARD<br />

Incredible commitment to the Scheme and training sees<br />

Langley win Considerate Constructors Scheme award<br />

10 DUST BREACHES UP ON SITES<br />

The BSG has reported that the number of dust breaches<br />

are up 23% on construction sites<br />

TOTAL<br />

INSULATION<br />

48<br />

VEHICLES, TOOLS<br />

& WORKWEAR<br />

06<br />

54<br />

JANUARY <strong>2021</strong> TC 5


Industry News<br />

BRETT MARTIN’S<br />

NEW IDENTITY<br />

Brett Martin has announced the launch of its<br />

new corporate identity, which it says will be<br />

rolled out over the coming months in a<br />

comprehensive programme including a new<br />

website, fleet livery, marketing and<br />

merchandising materials.<br />

Designed to communicate the company’s<br />

current scale, Brett Martin says the new<br />

identity expresses its fresh, open and<br />

ambitious style which has remained<br />

consistent in over 60 years of trading. The<br />

new, bolder brand will also flow into the<br />

extensive library of technical support<br />

documents which is widely regarded as a<br />

valuable resource for the roofing industry.<br />

Commenting on the new branding, Tom<br />

Ogilvie, Managing Director of Brett Martin<br />

Daylight Systems, said: “Our new identity<br />

expresses the energy and capabilities of<br />

Brett Martin perfectly. We are well known in<br />

the industry for unbiased advice, support<br />

and technically superior products which add<br />

value for the customer. We are continuing to<br />

invest in new solutions, and we have the<br />

people and expertise to further enhance our<br />

service.”<br />

The current identity has been in place for<br />

almost 30 years in which time Brett Martin<br />

has grown extensively, expanding its<br />

daylighting product range from pitched<br />

roofing to flat roofing and vertical facades.<br />

Today, Brett Martin says total turnover across<br />

all operations exceeds £180m, generated<br />

across the company’s markets in the UK and<br />

Ireland and through extensive export activity.<br />

More news, updates and interviews at www.total-contractor.co.uk<br />

LANGLEY WINS TOP SUPPLIER AWARD<br />

Langley Waterproofing Systems has<br />

been nationally recognised as the<br />

Most Considerate Supplier as part of<br />

the Considerate Constructors<br />

Scheme’s 2020 National Company<br />

and Supplier Awards, achieving the<br />

highest award category.<br />

The Considerate Constructors Scheme (CCS)<br />

National Company and Supplier Awards aims to<br />

raise standards in the construction industry by<br />

recognising the highest-performing CCS-registered<br />

companies and suppliers across the UK and Ireland,<br />

based on their performance against the scheme’s<br />

‘Code of Considerate Practice’.<br />

Companies and suppliers are monitored and only<br />

the highest performing construction companies that<br />

have demonstrated excellence in relation to the<br />

community, the environment and their workforce are<br />

recognised by the scheme with a National Award.<br />

To win the ‘2020 Most Considerate Supplier Award’,<br />

FREE OFFERS IN JAN WITH RAINCLEAR<br />

This <strong>January</strong>, Rainclear Systems, the UK’s<br />

leading stockist and online retailer of metal<br />

rainwater, roofline and drainage solutions, is<br />

including FREE fixings with every Gutter,<br />

Downpipe and LCC or SimpleFIT Soil Pipe<br />

order.<br />

Plus – while stocks last – on orders over £500<br />

customers will receive a Rainclear winter hat, and<br />

with orders over £1,000 customers will receive a<br />

Rainclear fleece.<br />

Freya Cottell, Rainclear’s Sales Support<br />

Administrator, explained: “We’ll calculate all the<br />

screws, nuts, bolts, nails and – where relevant –<br />

silicone sealant or our patented gutter sealing<br />

packs needed, based on the size and content of<br />

the order, and include them in the delivery, saving<br />

customers having to work all of that out for<br />

themselves, as well as the cost of the fixings.<br />

“Everything needed to get on and install the<br />

the Scheme’s Monitor found that<br />

Langley demonstrated incredible<br />

commitment to the Scheme with its<br />

values embedded at all levels of the<br />

business, and noted particular<br />

recognition for exceptional<br />

awareness of its environmental impact and<br />

commitment to reducing the industry’s skills gap<br />

with a wide range of training. With specific<br />

emphasis on Langley’s award winning ‘Waterproof<br />

Membranes Installer’ Apprenticeship Standard<br />

offering, as part of the Government-backed<br />

Trailblazer Scheme.<br />

Nicola Jeffries, Head of Administration at Langley<br />

Waterproofing Systems, commented: “We are<br />

absolutely thrilled to win the 2020 Most Considerate<br />

Supplier Award, particularly as the accolade follows<br />

independent assessment and auditing, so we are<br />

delighted that our hard work and dedication to<br />

improving the construction industry’s image has<br />

been recognised by this prestigious scheme.”<br />

Rainclear’s Sales Support Administrator, Freya Cottell,<br />

wearing the winter hat & fleece, and holding an example of<br />

fittings customers can expect to receive for free with orders<br />

placed in <strong>January</strong> <strong>2021</strong>.<br />

system they’ve bought will be delivered in one go.<br />

A winter hat and fleece are also pretty essential<br />

right now, whether you’re doing an installation on<br />

a roofline or just getting outside for a socially<br />

distanced catch-up.”<br />

Visit www.rainclear.co.uk to browse and buy all<br />

the metal rainwater, roofline and drainage ranges<br />

online.<br />

6 TC JANUARY <strong>2021</strong>


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Industry News<br />

SUPPLY & COST<br />

CONCERNS CONTINUE<br />

Nine in ten builders face rising costs, as<br />

supply chain disruptions and rising product<br />

demand are making it hard for construction.<br />

That’s the view following the latest State of<br />

Trade Survey from the Federation of Master<br />

Builders (FMB). It says the data paints a<br />

worrying picture that the Government must<br />

address to ensure that builders do not face a<br />

cliff-edge in the construction supply chain from<br />

<strong>January</strong> <strong>2021</strong>. After a busy summer, the FMB<br />

points out “workloads are slowing”, and says<br />

this, “combined with rising material prices and<br />

key shortages”, means “further steps must be<br />

taken to support construction at this crucial<br />

time, and end the uncertainty.”<br />

The latest findings from the FMB State of Trade<br />

Survey for Q3 2020 include: 9 in 10 builders<br />

(87%) said material costs are rising, up from 8<br />

in 10 (78%) in the summer; and only 4 in 10<br />

builders (39%) reported a rise in workloads,<br />

down from 5 in 10 (47%) in Q2.<br />

Brian Berry, Chief Executive of the FMB, said:<br />

“Builders are facing significant material<br />

shortages and growing waiting times for the<br />

products they need. With the end of the Brexit<br />

transition period only weeks away (at the time<br />

of writing), builders need confidence that they<br />

will not face delays at the ports and price hikes.<br />

With 87% of builders forecasting material price<br />

hikes, recovery risks grinding to a halt if these<br />

issues are not resolved. My members are<br />

reporting that homeowners are holding off<br />

planning home improvements next year.<br />

Builders in the new build and industrial or<br />

commercial sectors are also reporting<br />

contracting workloads. By investing in a longterm<br />

plan to green our existing homes, and by<br />

ramping up funding for local authority planning<br />

departments, the Government can help support<br />

recovery and job retention in construction.”<br />

More news, updates and interviews at www.total-contractor.co.uk<br />

NATIONAL RETROFIT STRATEGY BACKED<br />

As part of its work implementing the<br />

•creating a ‘building passport’ for every<br />

Roadmap to Recovery Plan, the<br />

home;<br />

Construction Leadership Council<br />

• development of skills training<br />

(CLC) has given its backing to a<br />

modules;<br />

National Retrofit Strategy which has<br />

been issued for consultation.<br />

• creating delivery programmes in trial<br />

areas to enable a grassroots approach.<br />

The CLC says with our existing homes using 35% of<br />

all the energy in the UK, and responsible for 20% of The strategy has been developed by participants<br />

carbon dioxide emissions, the National Retrofit of the Domestic RMI Workstream, one of the<br />

Strategy puts forward a plan for upgrades that are CLC’s four sector specific workstreams looking at<br />

vital if we are to meet the country’s net zero targets. Covid recovery, and brings together specialists<br />

and the supply chain to address sector priorities.<br />

According to the CLC, the plan will help make<br />

homes greener and more energy – and water – CLC Steering Coordination Group member Mark<br />

efficient, warmer and cheaper to run. This, it Reynolds said: “This strategy puts forward an<br />

says, is in line with the UK Government’s target to ambitious plan for tackling climate change and<br />

upgrade as many homes as possible to Energy creating jobs. It is fantastic to see the high level of<br />

Performance Certificate (EPC) C by 2035. The CLC support for the strategy from our industry. The CLC<br />

also points out that a national retrofit programme looks forward to working with BEIS and the Treasury<br />

will aid recovery in the repair, maintenance and to determine how the Government can adopt the<br />

improvement (RMI) sector, and provide<br />

strategy’s recommendations. Retrofit promises a<br />

opportunity for a joined-up approach to tackling great deal for the sector, including a long-term<br />

climate change by all parts of the construction pipeline of work. Not limited to this, retrofit brings<br />

industry. The strategy calls for partnership opportunities for upskilling, digitisation and<br />

working between industry and Government innovation, all in line with the Construction Sector<br />

according to these three key deliverables: Deal.”<br />

RARE BAT SPECIES SUCCESSFULLY REHOMED<br />

Aggregate Industries has shown its commitment designed specifically for the individual species, to<br />

to help safeguard wildlife on and around its allow the rehoming of bats from an existing<br />

sites, with a project to support and successfully bungalow which was approved for demolition. Now,<br />

rehome two rare species of bat.<br />

less than 18 months after the roost was built,<br />

Aggregate Industries says there is clear evidence<br />

The Greater and Lesser Horseshoe bats are said to<br />

that it has been used by large numbers of bats in<br />

be two of the rarest species of bat found in the UK,<br />

summer 2020 – signalling the successful rehoming<br />

and Aggregate Industries says there are<br />

of these rare species.<br />

longstanding records of them in the area around its<br />

Westleigh Quarry, in Devon. When Aggregate Simon Wiltshire, Biodiversity and Restoration<br />

Industries first started planning a project to develop Advisor (South) at Aggregate Industries, said: “We<br />

a new area of the quarry in 2005, it says it worked are proud to be a responsible supplier across all<br />

closely with Natural England to put in place a aspects of sustainability and ecology, and we were<br />

number of protection measures including standoff delighted to work closely with JG Ecological Surveys<br />

periods while the bats were active and hibernating. and Natural England throughout this project to<br />

The company says it also built a new roost in 2019, understand how we could adapt our plans and<br />

which was approved by Natural England and processes to ensure the bats were protected.”<br />

8 TC JANUARY <strong>2021</strong>


Get Ready For <strong>2021</strong><br />

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Industry News<br />

More news, updates and interviews at www.total-contractor.co.uk<br />

KEMPER’S NEW MD: ‘EXCITING YEAR AHEAD’<br />

Kemper System has appointed a<br />

Speaking of his new role, Mark<br />

new Managing Director.<br />

said: “Kemper System has been<br />

part of my life for almost 20 years<br />

Mark Bruchez, from Cheshire, will<br />

and I am thrilled to be taking on<br />

be heading up the business at its<br />

this new role. I am looking forward<br />

headquarters in Warrington, as<br />

Mark Bruchez, MD at Kemper System. to building on the solid<br />

former MD Peter Dietrich steps<br />

foundations that are already in<br />

down.<br />

place thanks to the excellent team at Kemper<br />

Mark has worked at Kemper System for 17 years, System, and working positively towards the future<br />

starting as technical coordinator in 2003, and to meet changing market conditions and customer<br />

working his way up to executive director<br />

requirements.<br />

(technical) – a role he has undertaken for the last<br />

“We have an exciting year ahead of us backed by a<br />

decade.<br />

strong team, and I am very much looking forward<br />

With more than 30 years of experience within the to what the future holds.”<br />

construction sector and business management<br />

Peter Dietrich, former MD of Kemper System,<br />

roles, Mark has also previously worked as a<br />

added: “I am delighted that such a dedicated and<br />

project leader and quality controller at Stirling<br />

knowledgeable member of the Kemper System<br />

Lloyd Group.<br />

team will be taking on such an important role.<br />

As a long-standing employee of Kemper System, Mark’s wealth of experience in the market and of<br />

Mark has formed strong relationships with both Kemper System, as well as his customer driven<br />

contractors and specifiers, and works closely with service and technical awareness will make a<br />

the Kemper System head office in Germany, and positive impact on the business, and I wish him<br />

subsidiaries across the globe.<br />

the very best of luck.”<br />

RGB LAUNCESTON<br />

CELEBRATES 30 YRS<br />

The Launceston branch of RGB Building<br />

Supplies recently celebrated 30 years<br />

since it opened its doors. As well as giving<br />

away goody bags to thank visitors for their<br />

custom, the branch team held a raffle in<br />

aid of RGB’s chosen charity, Cornwall Air<br />

Ambulance Trust, where one lucky person<br />

won a signed Exeter Chiefs shirt. The raffle<br />

raised £107 for the charity. The Launceston<br />

branch was the first depot RGB opened in<br />

Cornwall and it has continually grown and<br />

developed the range it offers to customers.<br />

Adam Davis, Branch Manager at RGB<br />

Launceston, commented: “We’re delighted<br />

to have been part of the Launceston<br />

community since 1990. In that time, we’ve<br />

developed long-lasting relationships with<br />

trade and retail customers and, whilst the<br />

current situation meant we were unable to<br />

hold a big celebratory event, we wanted to<br />

do something to mark the occasion.”<br />

DUST BREACHES SAID TO BE UP 23% ON CONSTRUCTION SITES<br />

The Building Safety Group (BSG) has reported a<br />

23% rise in the number of dust breaches<br />

occurring on construction sites.<br />

BSG’s report was based on 9000 independent site<br />

inspections conducted over a 6 month period from<br />

June to November 2020. Two periods were<br />

compared which revealed the increase. Between<br />

June and August there were 209 infringements<br />

recorded. This was set against 258 noncompliances<br />

that were catalogued between<br />

September and November 2020.<br />

The most common types of breach found included<br />

‘failure to set up effective dust suppression and<br />

extraction procedures on site’. ‘Not having dust<br />

masks face fit tested’ was also a common violation<br />

recorded by BSG advisers. Each year 1,000s of<br />

construction workers contract or die from respiratory<br />

diseases due to breathing in dust and fumes.<br />

Managing and controlling exposure to dust has<br />

become a major challenge for the industry.<br />

BSG’s report coincides with the Health and Safety<br />

Executive’s (HSE) recent month-long initiative<br />

inspecting respiratory risks and occupational lung<br />

disease in the construction sector. The primary focus<br />

was to identify what measures had been put in<br />

place to protect workers’ lungs from asbestos, silica<br />

and wood dust. HSE inspectors also looked for<br />

evidence of employers and workers knowing the<br />

risks, planning their work and using appropriate<br />

controls. Enforcement was required where it was<br />

found that people were not being adequately<br />

protected.<br />

BSG’s Managing Director, Stephen Bell, commented:<br />

“Construction workers have a high risk of developing<br />

Dust breaches on construction sites: 1st Jun – 30th Nov 2020.<br />

these diseases because many common construction<br />

tasks can create high dust levels. Work-related<br />

cancers, mainly linked to asbestos and silica, are<br />

estimated to kill 3,500 people from the industry<br />

every year. Thousands of others suffer life-changing<br />

illnesses from their work.“Our advice is to always<br />

look at ways of stopping or reducing the amount of<br />

dust before the job is started. For example, different<br />

materials could be used, less powerful tools or other<br />

work methods. Once these controls have been put in<br />

place, it is of course vital to check that they are<br />

working properly and effectively.”<br />

10 TC JANUARY <strong>2021</strong>


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Trip hazard reduction – long thin base-plates with<br />

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Galvanised or powder coated finish. Protective mats 5mm<br />

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Industry News<br />

CCF APPOINTS NEW<br />

MANAGING DIRECTOR<br />

CCF has appointed Catherine Gibson as<br />

its new Managing Director.<br />

Catherine joins CCF from Tool Hire, which is<br />

also part of the Travis Perkins plc Group, and<br />

brings a wealth of knowledge and experience<br />

to the role.<br />

Catherine brings 16 years’ experience in the<br />

manufacturing and construction industry in<br />

management and leadership positions.<br />

Catherine said of her appointment:<br />

“Expanding CCF’s market share and<br />

continuing its legacy as a completely<br />

customer focused business is my top priority.<br />

I’ll be exploring new ways to ensure the<br />

growth and development of the business,<br />

and look forward to working closely alongside<br />

our people, customers and suppliers to meet<br />

these high expectations.”<br />

Catherine will replace Dean Pinner, who is<br />

moving across to become Managing Director<br />

of Keyline, also part of the Travis Perkins plc<br />

Group.<br />

More news, updates and interviews at www.total-contractor.co.uk<br />

CALLS FOR CLEANER AIR FOR WORKERS<br />

The British Safety Council has welcomed the<br />

Prime Minister’s announcement that the UK<br />

will aim to cut its carbon emissions by at least<br />

68% of what they were in 1990, by the end of<br />

2030.<br />

As part of its Time to Breathe campaign, launched<br />

in March 2019, the British Safety Council says it lives lost due to air pollution each year across the<br />

has been calling on the Government to improve air country, according to the British Safety Council. It<br />

quality for thousands of outdoor workers. These says these measures will also save on the £20<br />

include construction workers, street cleaners, billion cost to the economy annually in healthcare<br />

refuse workers, traffic police, cycle couriers, and impact on businesses.<br />

maintenance workers, newspaper sellers,<br />

Mike Robinson, the British Safety Council’s Chief<br />

gardeners, teachers or security guards working on<br />

Executive, commented: “We applaud the<br />

busy roads.<br />

Government’s ambition to reduce emissions<br />

The British Safety Council says the Government’s further, but this must be backed up by concrete<br />

target will only be met if it is underpinned by policies and actions to achieve this ambition. The<br />

tangible actions to deliver its ambition. Such UK is currently slipping behind its existing targets<br />

actions include the Government adopting the and is now planning greater cuts in emissions.<br />

World Health Organisation’s (WHO) air pollution<br />

“There is an early opportunity for the Government<br />

targets, allowing electric only cars in cities from<br />

to put its words into action by adopting the WHO<br />

2030 and improving air quality measurement<br />

air pollution targets as part of the Environment Bill<br />

across the UK.<br />

currently progressing through Parliament. Taking<br />

These measures should be part of the<br />

the bull by the horns now will mean cleaner air in<br />

Government’s efforts to address climate change, our cities and a healthier outdoor workforce. These<br />

to improve public health and reduce the 40,000 are outcomes we all want to see.”<br />

SUPAFIL RANGE AWARDED DECLARE ‘RED LIST FREE’ LABEL<br />

Knauf Insulation’s Supafil range has become<br />

the first blowing wool solution in Europe to be<br />

awarded the DECLARE ‘Red List Free’ label.<br />

way. For architects and housebuilders, using<br />

products with the DECLARE label – like the Supafil<br />

range – is good for business. It ensures installer<br />

“DECLARE labels are a proof point for customers,<br />

but architects, housebuilders and installers can<br />

also use them to verify their own sustainability and<br />

wellbeing and is a powerful point of difference to health and safety credentials” continued Prowse.<br />

The scheme brings transparency to sustainability<br />

customers in a competitive market.”<br />

“For example, it contributes to green building rating<br />

claims by detailing where a product comes from,<br />

systems such as LEED. This means you can use<br />

what it is made of and where it goes at the end of The DECLARE label presents a straightforward<br />

the Supafil range to deliver buildings that are<br />

its life. It also certifies that an agreed list of ingredient list, similar to the food nutrition labels<br />

proven to be healthy and good for the<br />

harmful chemicals is not present in the product. people are familiar with. It also shows other<br />

environment.”<br />

important details such as product life expectancy,<br />

“DECLARE labels are new in the UK, but they’re<br />

end of life options and whether it contains To achieve the DECLARE label, Knauf Insulation<br />

poised to make a big difference to the housing<br />

chemicals featured on the DECLARE Red List. has disclosed the entire composition of its Supafil<br />

industry” said Matt Prowse of Knauf Insulation.<br />

These are substances designated as harmful to products down to 0.01%. The blowing wool range<br />

“For the first time, people can see the<br />

health and the environment by the International is created from up to 80% recycled glass with the<br />

environmental impact of individual construction<br />

Living Future Institute, including alkylphenols, remaining percentage composed entirely from Red<br />

products at a glance, in a clear and transparent<br />

phthalates and toxic heavy metals.<br />

List Free raw materials.<br />

12 TC JANUARY <strong>2021</strong>


“THE LIKELIHOOD OF MATERIAL SHORTAGES IMPROVING IS REMOTE”<br />

Stuart King, Crest’s Deputy Managing Director,<br />

discusses the current issues around supply of<br />

roofing materials and explains how with their<br />

factories having available stock and excellent<br />

lead times, Crest has been able to support<br />

merchants and distributors through this<br />

difficult period for supply.<br />

“It’s been well documented over the past few<br />

months that the UK is facing a roofing materials<br />

shortage. Many contractors are calling it a major<br />

crisis as they face long delays in obtaining roofing<br />

materials – the situation is desperate and with<br />

Winter here, pressure is mounting.<br />

“Concrete roofing tiles seem to be one of the most<br />

affected with lead times from order to delivery<br />

being at least 12 weeks and, in many cases, up to<br />

22. It’s the last thing roofers need at this moment,<br />

as they are still making up for lost time due to a<br />

busy Summer and lockdown restrictions.<br />

“At Crest Nelskamp we are one of the UK’s leading<br />

suppliers of high-quality roofing tiles and we have<br />

been actively increasing the supply to merchants,<br />

distributors and housebuilders to help remove the<br />

tremendous pressure they all face. We have ample<br />

production capacity and the ability to manufacture<br />

more roof tiles to further help the supply chain.<br />

“During the first lockdown in March, Crest’s<br />

European manufacturing partners Nelskamp<br />

maintained their production with Covid guidelines<br />

in place and official guidance from the German<br />

government, unlike many manufacturers in the<br />

UK, who were unable to produce and build up<br />

stocks at this time.<br />

“Our range of roof tiles are specially crafted and<br />

engineered by Nelskamp, with six modern<br />

production facilities strategically positioned across<br />

the country. Crest Nelskamp roof tiles are<br />

recognised for their use of high-quality robust<br />

materials and proven manufacturing techniques.<br />

“With stock on the ground waiting to be<br />

despatched from our factories and the increase to<br />

our transport and logistics operation to cope with<br />

the extra demand, we are working hard to keep<br />

delivery times as short as possible.<br />

With available stock we continue to push the<br />

boundaries in terms of supplying innovative, high<br />

quality engineered roofing tiles that have excellent<br />

technical properties, all of which are guaranteed<br />

for a minimum of 30 Years.<br />

“Most of our tiles have been carefully designed to<br />

reduce both labour and material costs as well as<br />

completion times, without sacrificing the quality<br />

and overall aesthetics and appearance of the roof<br />

which is obviously important to planning and<br />

environmental needs.<br />

“With the rapid rise in infections attributed to the<br />

rapid spread of a new variant of COVID-19,<br />

tougher restrictions have been introduced for<br />

London, large parts of the South East and East of<br />

England, and with most parts of the UK in the very<br />

high alert tier 3 Covid restrictions, the likelihood of<br />

material shortages improving is remote.<br />

“UK-based raw materials are under severe<br />

pressure, and this will have a knock-on result<br />

across the whole of the supply chain with most<br />

issues appearing spring/summer next year.”<br />

CITB ‘TO EXPAND APPRENTICESHIP SUPPORT’<br />

CITB has announced all levy-registered<br />

construction employers will be eligible to<br />

benefit from an expanded CITB<br />

apprenticeships support service, which it says<br />

will be phased in throughout <strong>2021</strong>.<br />

At present, CITB says it offers employer and<br />

apprentice support for 7,000 contracted<br />

apprenticeships, about a third of the total<br />

marketplace.<br />

Under the plans, CITB will offer a support service<br />

to all employers with apprentices, on an employer<br />

demand-led basis.<br />

To facilitate this, CITB says it will migrate direct,<br />

funded delivery of apprenticeships in England to<br />

existing providers. While funded apprenticeship<br />

support will continue in Scotland and Wales, CITB<br />

says the demand-led, wider offer will also apply<br />

in those nations. Support for employers will<br />

include help accessing grants; choosing the right<br />

apprenticeship standard and the right training<br />

provider; guidance through the Government’s<br />

online apprenticeships system; and building<br />

partnerships with colleges and training providers.<br />

CITB has stated it will also continue to offer some<br />

recruitment services to employers who recruit<br />

large numbers of apprentices each year, along<br />

with advice, guidance and support materials for<br />

all employers<br />

For apprentices, CITB says it will provide local<br />

data-driven careers advice, matching applicants<br />

to vacancies; and e-learning, supporting Maths<br />

and English. Direct contact with apprentices will<br />

be employer-driven but CITB will continue to offer<br />

support, at an employer’s request, particularly for<br />

those with educational and social needs or who<br />

are at risk of leaving.<br />

Deborah Madden of CITB said: “Apprenticeships<br />

are central to the way industry trains the workforce<br />

it needs for the future, and we know that employers<br />

value the support we provide, particularly smaller<br />

firms. In 2017 the Government and industry made<br />

clear that the way CITB provided services had to<br />

change, and these changes deliver on that<br />

commitment. The aim is to make it as easy as<br />

possible for construction employers, particularly<br />

SMEs, to take on and manage apprentices, and to<br />

improve the chances of those young people<br />

achieving their qualification.”<br />

JANUARY <strong>2021</strong> TC 13


Made for Trade<br />

Driving forward in to <strong>2021</strong><br />

Made for Trade complete<br />

investment in enhanced<br />

safety delivery fleet<br />

Made for Trade have announced a significant long-term<br />

investment in the expansion of their fleet of delivery<br />

vehicles. Each of the 10 new vehicles also comes equipped<br />

with another MFT design innovation, changing the way<br />

their products are handled both at the factory and also at<br />

delivery sites, the new design significantly decreases risk<br />

and puts safety of their employees first.<br />

MFT’s announcement, along with other news of their product<br />

expansion is a strong indication of their industry position and<br />

growth plans throughout 2020-<strong>2021</strong> and beyond.<br />

“For some time, we have been looking at the handling<br />

challenges presented by the loading and unloading of large<br />

heavy products from our wagons and we had some good<br />

design ideas of what we wanted to achieve. With sales<br />

dictating a need for more wagons to satisfy increasing<br />

delivery requirements we took the opportunity to kill 2 birds<br />

with one stone and had a custom fleet developed with local<br />

vehicle suppliers. We think this is a first in fenestration and<br />

is a significant step forward in transport safety.” Chris Wann.<br />

Business Manager.<br />

2020 has been a tough year for many businesses within<br />

the fenestration industry and some of the industry heavy<br />

hitters are either gone or have been significantly reshaped.<br />

Thankfully, it has not all been doom and gloom and there are<br />

many winners as a market driven by home improvements<br />

went stratospheric. With ongoing investment in new vehicles,<br />

additional staff and the expansion of their delivery coverage,<br />

Made for Trade really do mean business as they enter <strong>2021</strong> in<br />

a strong position with some exciting new developments on<br />

the brink of release into the market.<br />

FLEET IMPROVEMENTS<br />

The new 12-tonne Rollaflex vehicles have been commissioned<br />

from a local vehicle supplier with the functional design<br />

concept provided by the engineering team at MFT. The brief<br />

was to come up with a cost-effective loading and unloading<br />

solution which minimised the risks associated with manual<br />

lifting and provided a safe means of working at a height.<br />

Health and safety is one of MFT’s top priorities when it<br />

comes to the welfare of their staff and the safe delivery of<br />

their products.<br />

depending on the style of door. Once all stillages are full,<br />

the wagons move into the loading positions, the retractable<br />

curtain is drawn back, and the stillage is moved by forklift<br />

onto the wagon bed and locked into place.<br />

Once at the customers site, the driver conducts a risk<br />

assessment, cordons off the area and uses an articulated<br />

crane mounted to the vehicle bed for the safe and secure<br />

unloading of the door from the wagon to the ground in<br />

readiness for the customer to collect. The new design<br />

ensures that manual lifting of the doors is eliminated and<br />

that the operator is always safe, even when working from the<br />

unprotected wagon sides to attach the crane hook to the<br />

slings via a retractable barrier.<br />

DELIVERY COVERAGE EXPANSION<br />

The addition of more vehicles to the fleet also allows MFT to<br />

increase their delivery coverage area to include several new<br />

postcodes in Scotland. This move, the implementation of the<br />

first phase of a larger growth plan, cements the company’s<br />

intention to provide their top class service to customers<br />

that had previously struggled to obtain MFT door products<br />

alongside the Korniche lantern roof which is delivered<br />

nationwide.<br />

For more updates on this news, new product releases and<br />

to see how MFT provide the BEST PRODUCTS, at the<br />

BEST PRICES with the BEST SERVICE, head over to www.<br />

madefortrade.co and register online to receive regular emails.<br />

We would also like to take this opportunity to say a big<br />

thanks to all our customers in what has been a turbulent<br />

2020. Your loyalty has contributed entirely to our great<br />

sales volume, which in turn allows us to maintain the level of<br />

investment needed to improve service and expand our trade<br />

product range available to you, our customers.<br />

With these improvements to our service and 2 new products<br />

ready for launch in the new year, here’s hoping for a<br />

smoother journey in <strong>2021</strong><br />

www.madefortrade.co<br />

The logistics cycle starts off with the doors being moved<br />

from coded dispatch racks and loaded onto specially made<br />

stillages at floor level. As each door is placed onto the stillage<br />

a set of soft slings are fitted to predetermined safe positions


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NFRC Roofing Focus<br />

STRAIGHT FROM THE PLAYBOOK:<br />

THE HOWS & WHYS OF THE NEW WAY<br />

James Talman, Chief Executive of NFRC, says the government has set out their direction of<br />

travel in the Construction Playbook – and roofing contractors should take note...<br />

The last few months have seen a flurry of<br />

government policy papers, consultations<br />

and announcements. Amongst all of this<br />

noise was the launch of the Construction<br />

Playbook. You may have missed this, and with so<br />

much going on, I can’t blame you, but this could<br />

be one of the most transformative policies our<br />

industry has seen in recent times.<br />

There have been many reports over the years<br />

saying how the industry should change, but the<br />

Playbook actually sets out a framework of how it<br />

will change the industry, starting with<br />

themselves.<br />

So, what is the Construction Playbook?<br />

The Construction Playbook is a guidance<br />

document from the Cabinet Office. It<br />

is radical in what it attempts to do<br />

– to overhaul the way<br />

government procures<br />

construction projects, moving<br />

away from a focus on cost to<br />

whole life value. So rather than giving<br />

projects to the lowest bidder, it will take a<br />

more holistic look including things like health and<br />

safety, carbon emissions and social value.<br />

Ultimately, as the industry’s biggest client, it<br />

wants to help transform the sector to become<br />

more sustainable, profitable and safer, and<br />

through this achieve better, faster and greener<br />

delivery. It will reward contractors who meet<br />

these policies by giving them work and punish<br />

Left: James Talman, NFRC Chief Executive.<br />

“While the<br />

Playbook is<br />

aimed at those<br />

commissioning<br />

the work, its<br />

principles and<br />

policies will have<br />

ripple effects down the<br />

whole supply chain”<br />

those who don’t by not allocating them bids. They<br />

essentially hope to create a market based on<br />

value rather than cost.<br />

Continued on page 18


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NFRC Roofing Focus<br />

Continued from page16<br />

Who will this apply to?<br />

This will apply to any construction projects and<br />

programmes commissioned by a central<br />

government department or Arms Length Body<br />

(ALB) – so that covers everything from hospitals<br />

to schools, through to major infrastructure<br />

projects. It will be enforced on a ‘comply-orexplain’<br />

basis through spending controls –<br />

essentially if a government department doesn’t<br />

comply it could have financial consequences.<br />

While the Playbook is aimed at those<br />

commissioning the work (those in government<br />

departments), its principles and policies will have<br />

ripple effects down the whole supply chain. It is<br />

ultimately the criteria public sector clients will be<br />

using to choose which suppliers to work with. So,<br />

if you are a specialist contractor or manufacturer<br />

working on any public works, you need to know<br />

about this.<br />

“One of the complaints<br />

specialists often make<br />

is that they are brought<br />

into a project far too<br />

late – the Playbook<br />

attempts to change<br />

this”<br />

So, what’s in it for our industry?<br />

• Greater transparency of pipeline:<br />

The Playbook sets out the government’s intention<br />

to prepare, maintain and publish comprehensive<br />

pipelines of current and future government<br />

contracts and commercial activity – indeed, it<br />

even states that this is one of the most important<br />

things they can do as a government. They hope<br />

this will give contractors greater certainty by<br />

helping them to understand future demand, and<br />

perhaps through this achieve a more diverse<br />

supply chain including more Small and Medium-<br />

Sized companies (SMEs). The government has<br />

already made a start on this with its<br />

Infrastructure and Construction Pipeline<br />

“So what do they expect in return from industry?<br />

In essence, safer working practices, more<br />

innovation, greater use of digital, demonstration<br />

of social value and environmental sustainability”<br />

published earlier this year, but plans to produce<br />

similar pipelines in the future.<br />

• Earlier industry engagement:<br />

One of the complaints specialists often make is<br />

that they are brought into a project far too late,<br />

sometimes only with a few weeks’ notice. The<br />

Playbook attempts to change this by engaging the<br />

supply chain earlier in a project to mitigate risks<br />

and access the industry’s expert knowledge and<br />

experience at all tiers in the supply chain early.<br />

The Playbook recommends that Tier-2 and Tier-3<br />

sub-contractors and suppliers should be formally<br />

engaged at pre-construction phase to input into<br />

the design, costing, risk management and<br />

structuring of a project.<br />

• Fairer risk allocation and payment terms:<br />

The Playbook highlights the importance of an<br />

equitable and consistent allocation of risk. It<br />

recommends that risks should be allocated in<br />

the supply chain by taking into account both the<br />

practical capability and financial capacity to<br />

manage and absorb any risks, should they<br />

occur.<br />

Linked to this is having fair pricing and payment<br />

mechanisms. In a rare admission of guilt, the<br />

government state that ‘there are many examples<br />

where we [the government] have mandated<br />

unreasonable payment mechanisms, applied<br />

unreasonable terms and conditions and/or<br />

sought unsustainable cost reductions’. It then<br />

goes on to state clearly that a fundamental<br />

principle of the Playbook is that contracts<br />

should be profitable. Referring to payment<br />

specifically it says that contracting authorities<br />

‘should always pay their supply chain promptly’<br />

and that payment should be linked to delivery on<br />

outputs.<br />

What do government expect in return?<br />

The Playbook is described as a ‘compact’ with<br />

industry – it’s a two-way relationship. So what<br />

do they expect in return from industry? In<br />

essence, safer working practices, more<br />

innovation, greater use of digital, demonstration<br />

of social value and environmental sustainability.<br />

Pages 76-77 set out what the supply chain<br />

should do to adopt the framework, so roofing and<br />

cladding contractors should be looking at how<br />

they can embed these into their own policies and<br />

procedures, if they are not already.<br />

Big endorsement for construction<br />

One of the few silver linings of the last year has<br />

been how construction has come together and<br />

gained some real clout with government. This<br />

Playbook is one of the outcomes of this – with big<br />

endorsements for our industry from none other<br />

than the Chief Operating Officer for the Civil<br />

Service, himself, in the introduction to the<br />

Playbook.<br />

“It’s now time for the<br />

industry to show the<br />

government in return<br />

that it is up to the<br />

challenge”<br />

There will be up to £37 billion worth of contracts<br />

being brought to the market for economic and<br />

social infrastructure by the UK government over<br />

the next year, and it will be procured through this<br />

Playbook. It’s now time for the industry to show<br />

the government in return that it is up to the<br />

challenge.<br />

Contact NFRC<br />

www.nfrc.co.uk<br />

@TheNFRC<br />

18 TC JANUARY <strong>2021</strong>


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CLASS<br />

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FIRE RATED<br />

Non-combustible, aluminium adjustable paving support<br />

• Approved Document B compliant<br />

• No additional plastic or rubber<br />

components required<br />

• 76mm diameter head with 4 paving<br />

spacers; easy installation<br />

65-475mm<br />

• 112mm base with perforations for<br />

water drainage<br />

• Thread with 2 locking allowing fine<br />

adjustment<br />

• 2 tonne uniformly distributed load<br />

• 3 tonne concentrated load<br />

• All components 100% recyclable.<br />

InStar’s MeT-PeD is a BS13501-1 Class A1 external pedestal solution specifically<br />

designed for use with paving and ceramic surface finishes on external balconies.<br />

Can also be used on roof terraces.<br />

For more details please visit: www.instar-uk.co.uk<br />

or contact T: + 44 (0)1858 456949 E-mail: info@instar-uk.co.uk


Key Questions: Tapered Systems<br />

YOUR QUESTIONS ANSWERED...<br />

IMA members Simon Blackham, Technical Manager at Recticel Insulation and Richard<br />

Clennell, Product Manager at Bauder, offer some insight into the benefits and considerations<br />

that contractors need to be aware of before deciding to install a tapered roofing system.<br />

Q: What are the key advantages of a tapered<br />

roof system over other roofing systems such<br />

as cement screed roof solutions?<br />

SB: It’s essentially two solutions in one as you<br />

are able to install falls in accordance with<br />

BS6229 and insulate the roof in accordance with<br />

Part L of Building Regulations.<br />

RC: Another key advantage of a tapered system<br />

is that it is suitable for use with differing roofing<br />

systems such as bitumen, single-ply and cold<br />

liquids. It can be incorporated within the warm<br />

roof construction of a new-build or refurbishment<br />

flat roof system.<br />

SB: We should also point that it has good<br />

compressive strength to resist physical damage<br />

and offers flexibility to re-direct falls and create<br />

complex configurations with multi-directional<br />

falls.<br />

Q: What are some of the issues to consider<br />

when designing insulation for flat roofs?<br />

SB: It’s important to consider the outlet position<br />

and the direction you’d like the water to go in, as<br />

well as the height of upstands if you have a long<br />

fall and therefore a higher starting depth of<br />

insulation. Depending on the waterproofing<br />

system being chosen, roof accessories such as<br />

crickets, rooflight deflectors, insulated upstands<br />

and angle filets can be included as part of the<br />

insulation system. Care should be taken to<br />

ensure the correct insulation facer type is chosen<br />

for the correct waterproofing system.<br />

RC: The design should also ensure the minimum<br />

U-value requirements are met (0.35W/m²K) and<br />

falls in gutters are created to avoid standing<br />

water.<br />

Q: Can you explain why fall<br />

calculations are such a critical<br />

element of the roofing design?<br />

SB: Ponding water can damage<br />

the roof structure, is a risk due to<br />

freezing and is unsightly as it<br />

attracts debris that will stain the roof.<br />

Contactors should install a compliant<br />

roof drainage solution with falls that<br />

comply to code of good practice<br />

and design guidance directives<br />

from the likes of SPRA (Single<br />

Ply Roofing Association), NHBC<br />

and LABC.<br />

RC: Improving drainage falls so that flat<br />

roofs can shed water is key. Our tapered<br />

insulation is designed to be laid on a ‘flat’ deck<br />

with no hollows or back-falls.<br />

Q: Are there height or drainage limitations<br />

with tapered roofing systems?<br />

RC: As long as details are discussed prior to<br />

ordering the scheme, then the tapered design can<br />

be adapted to try and overcome upstand height<br />

issues. Refurbishment can be an issue where<br />

they cannot remove an existing object such as<br />

clerestory windows.<br />

SB: I agree, it depends on the roof more than<br />

anything. If there are door or window thresholds<br />

involved this can complicate the design.<br />

RC: We will always try and come up with a design<br />

that causes the least impact to the drainage and<br />

thermal value.<br />

Q: How can tapered insulation solutions aid<br />

compliance with Building Regs?<br />

SB: Compliance with Part L of Building<br />

Left: Simon Blackham – Recticel Insulation<br />

and below, Richard Clennell – Bauder.<br />

Regulations is “designed in”<br />

while also installing a compliant<br />

roof drainage solution.<br />

RC: Schemes should be designed<br />

with high thermal efficiency to hit or<br />

exceed the target U-values required. To<br />

conform to Building Regulations,<br />

systems should be tested to BS<br />

EN 13501-5 and granted<br />

Broof(t4). With fire spread an<br />

important factor in roof design,<br />

this Broof(t4) certification is the<br />

highest performance European fire<br />

rating for a flat roof system.<br />

Q: How does tapered insulation reduce<br />

installation time?<br />

RC: Tapered insulation can be retro-fitted as part<br />

of the waterproofing system during the<br />

refurbishment of a flat roof where drainage falls<br />

are insufficient.<br />

SB: There are schemes that come in pre-bonded<br />

sections. This means installers can install<br />

increased depths of insulation with only one on<br />

site bond. Schemes can also come in multilayered<br />

designs which will reduce the cost of the<br />

scheme. Designed schemes reduce the time<br />

installers need to apply the insulation and stops<br />

them having to cut their own mitres and valley<br />

details. Off-site production ensures consistent<br />

high quality insulation schemes.<br />

Contact IMA / Recticel / Bauder<br />

insulationmanufacturers.org.uk<br />

recticelinsulation.com / bauder.co.uk<br />

20 TC JANUARY <strong>2021</strong>


Perfectly Pitched<br />

CASE STUDY: PREVENTING LEAKS<br />

AROUND DORMER WINDOWS<br />

In the latest instalment of his excellent Consultant Case Study series of articles, John<br />

Mercer tackles the tricky issue of leaks around dormer windows, and explains how he<br />

addressed problems on a recent residential project he was called out to assess.<br />

The importance of careful detailing around<br />

roof features such as dormer windows can<br />

sometimes be overlooked when it comes to<br />

weathering the junctions with the main roof tiling.<br />

Dormer windows with pitched roofs usually have<br />

valleys behind them, gutters to capture the water<br />

from the dormer roof, and side abutments.<br />

I carried out a roof inspection on a dwelling<br />

recently where the roof was leaking badly around<br />

the dormer windows. The roof has a rafter pitch<br />

of 30 degrees and is tiled in large format flat<br />

interlocking concrete roof tiles. The dormers have<br />

pitched roofs and are positioned<br />

mid-slope in the main roof at<br />

the front and rear of the<br />

house. There are valleys<br />

where the dormer roof slopes<br />

intersect with the main roof<br />

and the side abutments are<br />

weathered with lead cover<br />

flashings which extend approximately<br />

200mm over the tiling. There are gutters each<br />

side of the dormer roof slopes.<br />

Rainwater from the main roof directly above the<br />

John Mercer, pitched roofing consultant.<br />

dormers is draining into the<br />

valleys behind the dormers.<br />

Water from the dormer roofs<br />

is draining into the valleys<br />

and into the gutters at each<br />

side. The valleys are draining<br />

water back onto the main roof slopes<br />

at each side of the dormers. The water from<br />

the gutters is also draining onto the main roof<br />

slopes at the same points as the valleys. This<br />

means that water is being drained in point loads<br />

22 TC JANUARY <strong>2021</strong>


onto the tiling directly above the dormer side<br />

abutments.<br />

Although the gutter outlets face away from the<br />

side abutments, the water simply spreads out as<br />

it runs down the tiles and much of it passes<br />

under the flashings. Cover flashings over flat<br />

interlocking tiles are not an efficient way to<br />

weather side abutments as water can easily<br />

penetrate between the tiles and the flashing. In<br />

the case of this roof, the abutment flashings are<br />

wholly inadequate.<br />

This roof is 30 years old and the leaks started<br />

about five years ago. An internal inspection<br />

revealed that the underlay, which was correctly<br />

turned up the wall under the abutment flashings,<br />

managed to prevent water from entering the roof<br />

structure until it eventually rotted and is now<br />

largely disintegrated.<br />

Careful design could reduce the volume of water<br />

running into the abutments. For example, the<br />

gutter outlets could be positioned at the front end<br />

of the dormers rather at the rear, as they are<br />

here. The front face of each dormer is close to the<br />

main roof gutters; therefore the dormer gutters<br />

could drain directly into the main roof gutters.<br />

Also, the lead at the lower end of each valley<br />

could be extended to shed further away from the<br />

dormer sides to avoid so much water from<br />

entering the abutment flashings.<br />

Diagram 1: Flat tile flashing with secret gutter.<br />

Most importantly, the side abutment flashings<br />

need to be installed correctly. Water can<br />

penetrate between the tiles and the flashing<br />

because there are no profiles in the tiles – for<br />

“Minimise the volume<br />

of water being shed in<br />

point loads directly<br />

above the dormer side<br />

abutments. Extend<br />

valleys to shed further<br />

away from the dormer<br />

sides”<br />

example pans or rolls – to stop the water. It is not<br />

possible to use lead soakers with single lapped<br />

tiles, therefore the standard detail is to use a<br />

continuous ‘secret’ gutter, as shown in Diagram<br />

1. These can be either formed in lead on site or<br />

manufactured pre-formed in suitable materials<br />

such as fibreglass.<br />

The gutter is installed under the tiles close to the<br />

wall to capture and drain away water that runs<br />

sideways off the tiles. The gutter lining extends up<br />

the dormer side by at least 75mm above the top<br />

surface of the tiles and is covered by a step<br />

flashing. The tiling is finished close to the dormer<br />

side, i.e. with a gap of no more than 15mm wide,<br />

to prevent access to birds and rodents. A cover<br />

flashing is usually installed in addition to the<br />

secret gutter to prevent the risk of debris such as<br />

leaves and pine needles etc. entering and<br />

blocking the secret gutter. A further option is to<br />

use pre-formed individual soakers, though advice<br />

on their use should be sought from the<br />

manufacturer.<br />

Profiled tiles, such as roman or pantile shapes,<br />

do not suffer the same problems at side<br />

abutments. The flashing can be a simple cover<br />

flashing which extends over the tiling tiles by at<br />

least 150mm. It must also extend over a<br />

complete tile roll or upstand; therefore, if<br />

necessary, the flashing may need to be wider to<br />

achieve this. The roll or upstand in the tile profile<br />

prevents water from running sideways between<br />

the tile and flashing and leaking into the building.<br />

A cover flashing is installed over the tiles and<br />

extends up the dormer side by at least 75mm.<br />

The flashing upstand can either turn into the wall<br />

Diagram 2: Profiled tile cover flashing.<br />

or be covered by an additional separate step<br />

flashing that overlaps the upstand of the cover<br />

flashing by at least 65mm and turns into the<br />

wall. In the case of dormer sides, the upstand of<br />

the flashing will usually be covered by the dormer<br />

cladding.<br />

“Always use either<br />

secret gutters or<br />

preformed soakers at<br />

side abutments with<br />

single lapped flat<br />

interlocking tiles”<br />

Contact John Mercer<br />

www.johnmercerconsultant.co.uk<br />

@Johnmercer3<br />

Summary:<br />

• Minimise the volume of water being<br />

shed in point loads directly above the<br />

dormer side abutments. Extend valleys to<br />

shed further away from the dormer<br />

sides.<br />

• Do not drain water from the dormer<br />

gutters directly above the side<br />

abutments.<br />

• Always use either secret gutters or<br />

preformed soakers at side abutments<br />

with single lapped flat interlocking tiles.<br />

• Only use cover flashings without secret<br />

gutters with profiled tiles.<br />

JANUARY <strong>2021</strong> TC 23


Solar Surge<br />

GETTING STARTED WITH SOLAR<br />

With demand for renewables set to soar over the next few years, Stuart Nicholson, Roof<br />

Systems Director at Marley, says it has never been easier for contractors to add solar PV<br />

to their offering.<br />

The potential introduction of the Future Homes Standard and strict targets for net zero<br />

carbon means the demand for renewables, such as solar PV, is growing rapidly. While<br />

making the first step to offer solar PV to customers may seem daunting, it can<br />

actually be quite a straightforward way for roofing contractors to expand their business and<br />

add revenue, particularly with the development of easy-to-install integrated solar tiles.<br />

To help contractors, we have put together a quick guide to getting started with solar:<br />

1Becoming certified as a solar installer<br />

MCS certification covers installations of<br />

products used to produce electricity and<br />

heat from renewable sources, including solar. You<br />

don’t have to be certified to install some<br />

integrated PV systems, such as our Marley<br />

SolarTile, but it is required to make the final<br />

electrical connection and do the sign off.<br />

Therefore, you can either form a partnership with<br />

a certified electrical contractor or become MCS<br />

certified yourself to help differentiate your<br />

business. To apply, you will need to get the<br />

appropriate training for solar PV connection and<br />

apply to a certification body to arrange<br />

assessment. More information can be found at<br />

Becoming certified - MCS (mcscertified.com).<br />

2Selling solar to customers Growing<br />

consumer concern about cutting energy<br />

costs and reducing their own carbon<br />

footprint is leading to renewed interest in<br />

domestic solar technology. A typical home PV<br />

system can produce around 40% of the electricity<br />

a household uses in a year, as well as reducing<br />

carbon emissions by between 1.3 and 1.6 tonnes<br />

per annum.<br />

For more specific data to help when selling solar,<br />

you can refer to the solar energy calculator on the<br />

Energy Saving Trust website. This provides<br />

estimated savings on energy bills and the<br />

financial payments your customers could receive<br />

by installing solar panels. It will give an estimate<br />

based on specific client information – such as<br />

postcode, roof pitch and direction etc.<br />

You can also talk to homeowners about the<br />

different solar options that are now available –<br />

see below.<br />

3Choosing a solar product There are two<br />

main options when it comes to solar PV –<br />

panels on top of the roof covering, or<br />

panels that are integrated into the roof tiles.<br />

These discreet, roof integrated PV systems are<br />

becoming more popular for aesthetic, planning<br />

and house resale reasons.<br />

Our new Marley SolarTile has been designed to<br />

make PV installation easy for contractors. The<br />

sleek, low profile panels can be integrated with<br />

any of our roof tiles or slates, so you can subtly<br />

incorporate solar tiles into any roof design – even<br />

handmade clay. It is easy to install, with an<br />

integrated tray so no counter battens are required<br />

and it has a simple push together design.<br />

Electrical connection can be done once the roofer<br />

has finished installing the panels, so it doesn’t<br />

hold up the job. It is fully compatible with the<br />

Marley full roof system and is covered by the 15-<br />

year system warranty.<br />

4Estimates One of the first questions we<br />

get asked is, how do I know how many<br />

solar tiles to install? Estimating is quite a<br />

simple process, as our online configurator builds<br />

an array of panels for you. All you need to do is fill<br />

in the grid to place the panels in position and the<br />

“SolarTile<br />

has been<br />

designed to<br />

make PV<br />

installation easy<br />

for contractors”<br />

system works out which flashing kits are needed<br />

and produces a price. It even calculates the kWp<br />

output, so you can easily achieve the required<br />

performance. The configurator also shows the<br />

flashing kit required by colour and when the<br />

boxes are delivered, they are marked in the same<br />

way, so you’ll know exactly which kits go where,<br />

making installation quick and easy.<br />

5Low pitch energy savings The advantage<br />

of our Marley SolarTile is that it can be<br />

used with any of our roof tiles and slates,<br />

down to low pitches of just 20 degrees. So if<br />

you’re working on a low pitch extension project,<br />

you can integrate solar tiles with clay interlocking<br />

tiles, such as our Lincoln and Eden pantiles, to<br />

get a rustic traditional clay appearance and the<br />

homeowner can save on energy bills at the same<br />

time.<br />

6Free training and support To help<br />

contractors make the most of solar PV<br />

opportunities and gain confidence in<br />

installation, Marley will be running free training<br />

courses throughout <strong>2021</strong>. For more information,<br />

technical support or to view demonstration<br />

videos, visit www.marley.co.uk/solarinstall.<br />

Contact Marley<br />

01283 722588<br />

www.marley.co.uk<br />

@MarleyLtd<br />

Stuart Nicholson, Marley.<br />

24 TC JANUARY <strong>2021</strong>


Comment<br />

LOW PITCH ROOFING CAN BE A<br />

HIGH POINT FOR <strong>2021</strong><br />

Paul Duffy, Managing Director of Onduline Building Products, the lightweight roofing<br />

systems specialist, predicts that low pitch roofing and ‘green’ solutions will be high on<br />

the agenda for roofing contractors this year.<br />

2020 was a year we will never forget; one<br />

when lockdown led to slowdown and<br />

changed the way we live and go about our<br />

work.<br />

For many, it meant closing the office and working<br />

from home. But a roof cannot be built via video<br />

conferencing.<br />

Rightly, the government identified the<br />

construction sector as essential in getting the<br />

economy moving, and a number of important<br />

announcements have given added impetus to this<br />

strategy.<br />

Changes in planning rules mean home owners<br />

will be able to add two extra floors to their houses<br />

without needing full planning permission. But<br />

careful consideration will still need to be given to<br />

the impact on neighbours and the appearance of<br />

such an extension.<br />

Low pitch demand<br />

This revision of Permitted Development is sure to<br />

lead to increased demand for low pitch roofing, as<br />

architects and home owners seek to maximise<br />

the habitable space available.<br />

The ‘holy grail’ here is to make the pitch as low<br />

as possible while retaining the integrity of the roof<br />

structure so it remains weathertight.<br />

For tiled roofs this can be achieved with a robust<br />

underlay, such as the ISOLINE ONDUTILE system,<br />

which is a sustainable ‘roof beneath a roof’<br />

“It is a great<br />

selling point<br />

for roofing<br />

contractors,<br />

to be able to<br />

tell the client<br />

‘we can add<br />

additional<br />

habitable space<br />

without harming the<br />

visual environment’”<br />

designed for beneath clay, slate or concrete tiles.<br />

Here, the pitch can be as low as 12.5° for<br />

interlocking concrete tiles, 17.5° for clay pantiles,<br />

natural and fibre cement slates, and 22.5° for<br />

plain double lap tiles.<br />

It is a great selling point for roofing contractors, to<br />

be able to tell the client ‘we can add additional<br />

habitable space without harming the visual<br />

environment’.<br />

This is an area we plan to invest further in during<br />

<strong>2021</strong>.<br />

Green momentum<br />

Sustainability will again be a big focus, and while<br />

not directly related to roofing, the government’s<br />

Green Homes Grant Scheme has given this issue<br />

added momentum.<br />

“While there will be challenges in <strong>2021</strong>, we can<br />

be confident of plenty of opportunities for<br />

roofing contractors”<br />

Left: Paul Duffy, MD at Onduline Building<br />

Products.<br />

ISOLINE roofing underlays also<br />

meet this ‘green agenda’, as<br />

the material is made of a<br />

minimum 50% recycled<br />

cellulose fibres, contain no<br />

asbestos and do not release any<br />

hazardous substances. Importantly,<br />

they also have BBA certification.<br />

One consequence of the pandemic has been that<br />

people are spending more time in their gardens, a<br />

trend we expect to continue. This has caused a lot<br />

of home owners to spruce up their garden<br />

buildings, but this has not been restricted to<br />

sheds and pergolas.<br />

The light weight, easy handling and quick<br />

installation of bituminous corrugated sheeting has<br />

seen an increase in interest in garden rooms as<br />

home offices, with materials such as ONDULINE<br />

CLASSIC being used as cladding for the walls as<br />

well as on the roof. It’s also popular as an<br />

innovative solution for architects looking to convert<br />

structures such as old agricultural buildings into<br />

holiday lets, or adding an extra floor to a redundant<br />

workshop to turn it into a two-storey home.<br />

Opportunities<br />

So, while there will be challenges in <strong>2021</strong>, we can<br />

be confident of plenty of opportunities for roofing<br />

contractors as the sector continues to show<br />

resilience and an ability to innovate and adapt.<br />

Contact Onduline Building Products<br />

uk.onduline.com<br />

@ondulineUK<br />

26 TC JANUARY <strong>2021</strong>


Pitched Roofing<br />

WIDE-RANGING BENEFITS<br />

Lewis Turnbull, Technical Manager for Ibstock Concrete’s Building Products division – which<br />

includes the Forticrete brand – outlines the importance of successful supply chain<br />

collaboration and sustained production levels of innovative building materials, such as large<br />

format roof tiles, to support developers in meeting the increased level of demand for roofing<br />

materials.<br />

Arecent report by the NHBC highlighted that<br />

new property registrations fell by more<br />

than 20,000 in quarter two of 2020 due to<br />

restrictions being implemented in response to the<br />

COVID-19 pandemic. However, as lockdown<br />

restrictions were eased, there was a significant<br />

bounce back in quarter three for the industry as<br />

COVID-19 safe sites were able to reopen,<br />

resulting in the number of new home completions<br />

rising to 33,440, just 4% below 2019 figures.<br />

Whilst this increasing demand to pre-COVID 19<br />

levels is positive for everyone involved in the<br />

“One particular trend<br />

that is growing in<br />

popularity is the<br />

installation of larger<br />

format concrete roof<br />

tiles”<br />

construction industry, it has presented its own<br />

challenges. For developers, one of the most<br />

critical, aside from implementing stricter health<br />

and hygiene measures on-site, has been<br />

industry-wide product availability issues,<br />

particularly as manufacturers themselves have<br />

had to adapt to new ways of working to get<br />

manufacturing levels back up to where they need<br />

to be to meet this demand.<br />

The good news is that this challenge is being met<br />

head on, with the supply chain working extremely<br />

hard, and in closer collaboration with developers<br />

than they ever have before, to ensure the right<br />

products are available, when they need them.<br />

As demand for new housing continues to rise, we<br />

are also seeing more and more housebuilders<br />

looking to explore new methods of building,<br />

combined with the specification of alternative<br />

building products, to reduce build times and help<br />

overcome the existing backlog, whilst also<br />

minimising resource and material costs for future<br />

developments.<br />

Larger format concrete tiles<br />

One particular trend that is growing in popularity<br />

when it comes to the roof for instance, is the<br />

installation of larger format concrete roof tiles,<br />

which can successfully increase the rate of<br />

building, without impacting the quality and<br />

durability of the roof.<br />

For instance, Forticrete’s wide format concrete<br />

tile, SL8, offers a cost effective and easy to install<br />

solution, which enables developers to reduce the<br />

materials required on site by 20%. This is due to<br />

only eight tiles being required per m², compared<br />

to 10 traditional tiles per m².<br />

Whilst this not only supports housebuilders in<br />

minimising initial expenditure, it also facilitates a<br />

reduction in resource and associated costs, as<br />

the installation time is significantly reduced.<br />

Large format concrete tiles also work to improve<br />

the sustainability of the entire development, as<br />

the level of waste products on site is significantly<br />

reduced. This is achieved through the tiles’<br />

innovative construction, which provides superior<br />

strength to help reduce the frequency of<br />

breakages on site, whilst also ensuring the<br />

continued longevity and suitability of the roof.<br />

Aesthetics count<br />

However, it is important that durability and<br />

efficiency doesn’t overtake aesthetics, as the<br />

exterior of the property makes the first<br />

impression. When specifying wide format<br />

interlocking concrete tiles, developers can choose<br />

products that are available in a range of colours<br />

and feature a thin leading edge, replicating the<br />

visual appeal of natural slate.<br />

The SL8’s streamlined construction features two<br />

nail holes and a thin leading edge, which provides<br />

roofers with enhanced fixing flexibility when<br />

interlocking the tiles, aiding quicker and easier<br />

installation, without compromising on the overall<br />

visual appeal.<br />

Technical approach to materials<br />

Whilst installing building materials such as large<br />

format concrete tiles can improve the efficiency<br />

of construction on site, developers should also<br />

examine their specification and planning<br />

processes to ensure the most proficient materials<br />

and methods are being utilised for future


developments, in order to successfully meet<br />

demand.<br />

Manufacturers are actively aiding developers in<br />

this process, with Forticrete’s team of technical<br />

advisers working collaboratively with<br />

housebuilders to identify the most efficient<br />

building materials for future constructions, whilst<br />

also ensuring existing project requirements are<br />

fulfilled.<br />

This includes the utilisation of resources such as<br />

Forticrete’s online fixing specification system,<br />

which enables developers to receive instant<br />

information regarding the most suitable building<br />

products, as and when they require it. Taking<br />

advantage of supporting services such as this<br />

enables housebuilders to streamline both the<br />

initial design stages and the actual development<br />

of the site.<br />

As the industry progresses and becomes<br />

accustomed to new COVID-secure methods of<br />

construction, manufacturers are also adapting to<br />

the ever-changing environment to support<br />

“It is important that durability and efficiency doesn’t overtake aesthetics, as the exterior of the property makes the first impression.”<br />

developers in achieving more proficient methods<br />

of building, to successfully overcome previous<br />

delays and facilitate current demand.<br />

By choosing building products such as wide<br />

format concrete roof tiles, developers can not only<br />

increase the rate of construction, but<br />

simultaneously minimise the level of expenditure<br />

and resource required.<br />

Contact Forticrete<br />

01525 244900<br />

https://www.forticrete.co.uk/book-a-cpd<br />

@Forticrete<br />

DEPENDABLE. DURABLE. GUARANTEED.<br />

We’re here<br />

to help you<br />

get back up<br />

to full speed<br />

<strong>2021</strong> promises better things. So, whatever you<br />

need to help you design and build extension roofs,<br />

unique GRP system, were here for you – just ask.<br />

call us: 01327 701 930<br />

email: sales@hambleside-danelaw.co.uk<br />

www.dryseal.org | www.dryseal.ie<br />

40+ YEARS OF ROOFING INNOVATION<br />

JANUARY <strong>2021</strong> TC 29


Roofing & Waterproofing<br />

TALES OF THE UNEXPECTED...<br />

Justin Pitman, Sales Director at Proteus Waterproofing, discusses two projects which show<br />

just how quickly even the best planning can go out of the window and why this when<br />

experience and expertise must come to the fore...<br />

Costs and the need to remain competitive<br />

affect every part of the construction<br />

industry and waterproofing is no<br />

exception. It’s a simple fact of life that every<br />

client expects and wants a “Rolls Royce” job, but<br />

most are unwilling or unable to pay the going rate.<br />

In spite of this, contractors strive to deliver<br />

exceptional quality at all times, even when margins<br />

are cut to the bone. This means going that extra<br />

mile to deliver best practice on every contract – and<br />

in many cases that also means being ready to deal<br />

with the unexpected.<br />

At Proteus we go to huge lengths to survey and<br />

accurately report on every new project before<br />

handing it over to one of our approved contractors.<br />

We try to cover everything from thermal shock to<br />

wind uplift and more, but it is the unseen problems<br />

that are always hidden from view and are never<br />

discovered until work starts that really test teams.<br />

Every building has its own story and each one is in<br />

its own way a tale of the unexpected. This is when<br />

best practice really comes into its own and<br />

contractors and suppliers with the experience and<br />

ability to overcome unforeseen problems shine.<br />

Case studies: adapting to challenges<br />

Nothing is really typical as we can see from the two<br />

projects that follow. The first features the House of<br />

Detention in central London, which by the mid-19th<br />

century was used as a holding prison for those<br />

awaiting trial with an estimated 10,000 people a<br />

year passing through its gates. The prison was<br />

demolished in 1890, but an entire underground<br />

section survived and lay undisturbed until the<br />

bombs of the Blitz saw it reopened as an air-raid<br />

shelter. After World War II it was again largely<br />

forgotten until, in 1993, it became a museum and<br />

remained as such until its closure in 1999.<br />

When Proteus became involved,<br />

together with its approved contractor<br />

MJ Rooney Construction, it at first<br />

seemed like a simple, straightforward<br />

project to waterproof a car park that had<br />

since been built over the old prison.<br />

Such was the case until the old decking was<br />

removed to reveal the roofs of the cells and the<br />

short-term work which had been used to waterproof<br />

them in earlier years. It was a tale of the<br />

unexpected which turned into protecting a Grade 2<br />

listed building still being extensively used for film<br />

work and events. To make things more difficult, the<br />

project was time sensitive and in a heavily<br />

populated area meaning hot molten materials could<br />

not be used. New concrete also had to be installed<br />

to protect the ceilings within the barrel-vaulted cells<br />

and these had to be quickly waterproofed.<br />

Our exclusive Proteus Cold Melt system which can<br />

be used to waterproof green concrete after just<br />

three days was used to overcome the problem. This<br />

meant that a permeable tarmac could be used to<br />

finish the job which would allow water to drain<br />

through to the waterproofing and not into the<br />

building below.<br />

Not so daunting, but equally challenging, was the<br />

Maggie Centre at the Royal Marsden Hospital. The<br />

new building, designed by A.B. Rogers Architects,<br />

involved the use of some distinctive terracotta<br />

bowls which were used as part of the cladding.<br />

This meant that what first appeared to be a<br />

straightforward waterproofing job on the roof by<br />

contractor Rhino Exteriors was complicated by the<br />

fact that a guard rail needed to be installed after the<br />

membrane had been laid.<br />

This tale of the unexpected involved the contractors<br />

working closely with the cladding specialist to rewaterproof<br />

around each guard rail following each<br />

Left: Justin Pitman.<br />

installation. Some would say<br />

this is best practice, but I<br />

prefer to think of it as<br />

excellent back up and support<br />

from a trusted and reputable<br />

contractor.<br />

“Because every<br />

building has its own<br />

story, you must always<br />

expect the<br />

unexpected”<br />

It involved working closely with the design team to<br />

ensure that the rainscreen cladding fixings and<br />

waterproofing would work together and keep the<br />

building watertight until the cladding was installed.<br />

The systems used on this contract were our Pro<br />

System Plus and Proteus Pro-Therm Thermal<br />

Protection Board.<br />

So, what really is best practice? In construction that<br />

does mean keeping to the regulations to ensure that<br />

materials are installed in the proper way with no<br />

short cuts. But it really is a lot more than that and<br />

ultimately comes down to the right experience and<br />

expertise.<br />

A competitive price will, of course, always remain<br />

an issue, but as every roofing professional will tell<br />

you – because every building has its own story,<br />

you must always expect the unexpected – and<br />

that is when best practice really comes into its<br />

own.<br />

Contact Proteus Waterproofing<br />

www.proteuswaterproofing.co.uk<br />

@Proteus_UK<br />

30 TC JANUARY <strong>2021</strong>


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t: 01543 687300<br />

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www.filon.co.uk


Small Projects: EPDM Roofing<br />

AN OPPORTUNITY TO OFFER A<br />

LITTLE MORE TO YOUR CUSTOMERS<br />

EPDM flat rubber roofing is fast and easy to apply and provides the opportunity for you to<br />

offer additional services that your clients might be interested in – for instance, the creation of<br />

an effective bike or log store. Rob Hunt, Training Instructor at Permaroof UK, explains how<br />

to successfully complete this type of project.<br />

1Let your rubber roof rest before<br />

installing Complete the final<br />

measurements and gather all your required<br />

tools and materials.<br />

An EPDM membrane will have sat in a particular<br />

position for some time during packing and<br />

delivery, which means it isn’t quite ready to<br />

install straightaway.<br />

Let your EPDM membrane rest for around 30<br />

minutes before you begin the installation process<br />

to allow creases to relax.<br />

1<br />

1<br />

2Start by preparing the area You may not<br />

realise it, but when it comes to applying a<br />

rubber roof, one of the worst things you<br />

can do is to try and install it on a roof deck that is<br />

dirty and dusty.<br />

Firstly, if you adhere the membrane to a roof that<br />

isn’t clean, you are likely to end up with a bumpy<br />

mess that you will want to do again. Secondly, the<br />

adhesive used in rubber roofing isn’t going to<br />

adhere reliably if the surface isn’t clear of dust or<br />

debris.<br />

Once everything is in place, give the surface a<br />

good brush down with a soft household brush –<br />

this should remove enough dust and oil or grease<br />

spots to create the ideal surface to work with.<br />

3Make sure it’s the right size If you have<br />

used a calculation tool, you should find the<br />

membrane fits with very little waste.<br />

1. Left and below: Rest the EPDM and get your tools ready.<br />

However, there’s still a chance you’re going to<br />

need to trim some of it off in order to get it to the<br />

right size.<br />

3<br />

3. Trim any excess.<br />

4Time to apply your adhesive Firstly, fold<br />

back one half of the membrane and apply<br />

a water-based adhesive to the roof decking<br />

with a nine-inch roller. Secondly, use Firestone<br />

Bonding adhesive at the edges, which is much<br />

stronger and will dry much more quickly. It should<br />

be applied to the roof deck, as well as the<br />

membrane itself, and allowed to go touch dry.<br />

4. Apply edge adhesive.<br />

4<br />

32 TC JANUARY <strong>2021</strong>


7<br />

5<br />

7<br />

5. Secure the membrane: ‘Use a roller to push out any bubbles, and a push a penny roller to get into the corners and edges’.<br />

“Double check you don’t have air bubbles trapped”<br />

5Roll the membrane onto the roof deck<br />

Make sure the membrane is laid evenly<br />

and double check you don’t have air<br />

bubbles trapped underneath. Use a wide-span<br />

domestic broom with soft bristles to press down<br />

the membrane, a roller to push out any bubbles,<br />

and a push a penny roller to get into the corners<br />

and edges to make them neater.<br />

6Prepare to apply the edging Trim any<br />

excess from the edges and apply a tape<br />

adhesive to the edging.<br />

6<br />

7Secure the edging Neatly fold over the<br />

edges, lay over the edging and secure<br />

further with nails.<br />

8Present the finished job A watertight<br />

and effective bike or wood store that<br />

your client will be over the moon with!<br />

For further information on Permaroof UK or to<br />

book onto one of its training courses visit:<br />

www.permaroof.co.uk<br />

8<br />

7. Fold the edges and secure the trim.<br />

Contact Permaroof UK<br />

01773 608 839<br />

www.permaroof.co.uk<br />

@PermaroofUK<br />

6. Trim any access from the edges and apply a tape adhesive.<br />

JANUARY <strong>2021</strong> TC 33


Flat Roof Insulation<br />

INSULATING EXISTING FLAT ROOFS<br />

By Darren Smith, Site Support Manager at Building Innovation.<br />

The winter months are a serious test for flat<br />

roofs with freezing temperatures, driving<br />

wind and plenty of rain, sleet and snow. All<br />

of this means any problems with the roof are<br />

likely to be exposed pretty quickly, leading to<br />

leaks. If you are carrying out repair work on these<br />

roofs, it’s a good idea to check if the roof is<br />

insulated. If not, they can allow a lot of heat to<br />

escape out of the home, bumping up the owner’s<br />

energy bills. Flat and tapered roof system<br />

designers can work with you to quickly identify<br />

and supply a suitable system. In addition,<br />

homeowners and landlords in England may also<br />

be able to get a Green Homes Grant to cover most<br />

of the cost of this work.<br />

Qualifying for a Green Homes Grant<br />

The Green Homes Grant scheme offers up to £5,000<br />

covering two thirds of the cost of certain energy<br />

efficiency measures (or £10,000 covering the full<br />

cost of work for those on low income) on homes in<br />

England. If the flat roof is currently uninsulated, the<br />

owners should be able to put in an online grant<br />

application. Once this is approved, TrustMark<br />

certified installers can quote for the work.<br />

The funding covers not only the cost of the<br />

insulation, but also directly related work such as<br />

fixing any issues with damp, the new<br />

waterproofing membrane and the cost of<br />

scaffolding. The scheme has now been extended<br />

until the end of March 2022. More information<br />

about the scheme and how to apply is available<br />

at: https://www.simpleenergyadvice.org.uk<br />

What to check before fitting insulation<br />

Before installing any insulation on a flat roof, it is<br />

important to fix any existing issues. These can<br />

include:<br />

• tears, holes or gaps in the roof waterproofing<br />

system;<br />

• blisters in the membrane surface (this means<br />

moisture has gotten beneath);<br />

“If the roof is leaking, it will usually be necessary<br />

to strip off the existing membrane and to replace<br />

any damaged sections of the roof decking or<br />

timbers”<br />

• missing or rotting facias; and<br />

• signs of water ponding on the roof surface.<br />

If the roof is leaking, it will usually be necessary<br />

to strip off the existing membrane and to replace<br />

any damaged sections of the roof decking or<br />

timbers. If the roof surface is in decent condition,<br />

then you can typically save yourself some time by<br />

fitting the insulation directly above the existing<br />

waterproofing layer. Either way, the roof should be<br />

dry and in good condition before the installation<br />

work starts.<br />

Choosing insulation<br />

Where possible, it is recommended that installers<br />

use a ‘warm roof’ approach when insulating flat<br />

roofs. This makes it simpler to ensure the<br />

insulation is fitted continuously across the roof<br />

and to avoid any issues with condensation.<br />

There are plenty of insulation options now on the<br />

market for warm flat roofs. One of the key<br />

differences between them is their thermal<br />

conductivity value (also known as lambda value).<br />

The lower this value is, the better they are at<br />

preventing heat loss meaning you can fit a<br />

slimmer thickness of insulation. This is<br />

particularly important in warm roofs as fitting<br />

poorer performing materials can lead to a fairly<br />

hefty roof depth.<br />

For example, expanded polystyrene (EPS)<br />

typically has a thermal conductivity of between<br />

0.038-0.034 W/mK. In contrast, polyisocyanurate<br />

(PIR) insulation can have a value as low as 0.021<br />

W/mK. This should help to save a few millimetres<br />

on the roof thickness without affecting the U-<br />

value.<br />

Working with experts<br />

Specialist flat roof designers and suppliers can<br />

help to take a lot of the hassle out of flat roof<br />

repairs. They can carry out an initial survey of the<br />

roof and identify the best and most cost-effective<br />

insulation materials for your project. In cases<br />

where the existing roof is draining poorly, they can<br />

also design and supply tapered roof solutions<br />

which combine insulation and a fall in a single<br />

layer, streamlining the installation and helping<br />

you to achieve excellent end results.<br />

Contact Building innovation<br />

www.building-innovation.co.uk<br />

@BuildingInnov<br />

34 TC JANUARY <strong>2021</strong>


WE LOOK FORWARD<br />

TO WELCOMING YOU<br />

BACK TO FIT SHOW IN<br />

<strong>2021</strong> WHERE YOU WILL<br />

BE ABLE TO SEE THE<br />

BEST IN THE INDUSTRY,<br />

TO BE THE BEST IN THE<br />

BUSINESS


Roof Windows<br />

TOP INSTALLATION TIPS FOR<br />

DAKEA ROOF WINDOWS<br />

Roof windows are in demand and make a great addition to any home. The team at Dakea<br />

say they are there to support installers every step of the way on projects, and in this article<br />

Paul Edwards, Area Sales Manager at Dakea, outlines the key considerations to make...<br />

Q: Why are roof windows in such demand?<br />

A: Natural light research shows that we all<br />

benefit from spending time in spaces with natural<br />

light. Daylight has a positive effect on our health,<br />

production and happiness and this is a real pull<br />

for home owners and building owners.<br />

Fresh air: A good supply of oxygen improves<br />

concentration, boosts energy levels and helps<br />

people think more clearly.<br />

Increased living space: Roof windows transform<br />

any living space, giving people a place to work<br />

from home, adding value to properties and<br />

allowing residents to enjoy natural light and enjoy<br />

the views outside.<br />

Q: What should I look for in a roof<br />

window?<br />

A: Roof windows are a costly investment in any<br />

property, whether it’s a new build or<br />

refurbishment. Therefore, it’s important to<br />

understand how to choose the best roof window<br />

for each project:<br />

Energy Efficiency: it’s vital that roof windows<br />

are highly thermally efficient to reduce excess<br />

heat loss – especially as a quarter of heat is said<br />

to be lost through the roof. An inefficient roof<br />

window will reduce the energy performance of a<br />

building, lower the temperature, and create higher<br />

energy bills. Therefore, it’s important to use<br />

products that are well insulated with excellent U-<br />

values – such as Dakea’s Ultima Energy and<br />

Ultima range which have impressive values of<br />

0.99 - 1.2 W/m²K<br />

Noise Absorption: When choosing a roof window,<br />

the level of sound insulation should be<br />

considered. Research has shown that sounds as<br />

low as 30 decibels (dB) can disturb sleep –<br />

moderate rainfall can cause noise levels of 40 dB<br />

to 55 dB and busy traffic can cause noise levels<br />

of up to 70 dB.<br />

Dakea Ultima Energy and Ultima windows have a<br />

thicker, hardened outer pane, which is also<br />

combined with an advanced, anti-noise cladding<br />

system with noise-absorbing material, and a<br />

double or triple pane incorporates two layers of<br />

noise-reducing film.<br />

Weather resistance: Windows are one of the<br />

most vulnerable areas of a home. In the event of<br />

strong winds, heavy debris can be lifted and<br />

thrown into them, causing cracks and scratches,<br />

or even shattering them.<br />

With severe storms occurring more frequently in<br />

Britain, it’s crucial to select a roof window for<br />

your projects that has been tested to withstand<br />

harsh weather conditions. For added safety, the<br />

internal panes should be laminated so any shards<br />

Paul Edwards, Area Sales Manager at Dakea.<br />

will stay in place. Dakea windows also have a<br />

lifetime guarantee for the external pane against<br />

hail damage.<br />

Guaranteed lifespan: Dakea has a 20-year<br />

guarantee for its roof windows. This is due to the<br />

rigorous testing process each product goes<br />

through.<br />

Q: How do I ensure the installation goes<br />

smoothly?<br />

A. Roof window installations can prove<br />

challenging on many fronts; time, procedure and<br />

36 TC JANUARY <strong>2021</strong>


“Time, procedure and<br />

the weather can all<br />

hinder the project”<br />

the weather can all hinder the project and lead to<br />

installers spending more time and money on the<br />

installation. Dakea’s roof windows are quick and<br />

easy to install with our free installation<br />

accessories included with our Ultima Energy,<br />

Ultima, Better Energy and Better Safe ranges:<br />

Dakea’s Roofing Underfelt Foil Collar speeds up<br />

installation by reducing the need for cutting. It<br />

ensures 100% water tightness as it’s made of<br />

stretchable, highly tear-resistant polystyrene,<br />

non-woven fabric with a vapour permeable<br />

polyurethane coating from one piece with no<br />

joints. It’s easy to fit and adjust and the squared<br />

surface will help you cut straight too.<br />

The Roofing Vapour Barrier Foil ensures proper<br />

connection to the internal vapour barrier. The<br />

welded rubber gaskets with pressure seals<br />

guarantee quick installation resulting in a vapourfree<br />

and airtight fit.<br />

Our Insulation Foam Collar forms a sealing frame<br />

around the window frame, restricting heat loss<br />

and ensuring easier, faster and faultless<br />

installation. The Foam Collar is pre-cut, so the<br />

installation is limited to sticking on the adhesive<br />

side, always ensuring the correct fit.<br />

Q. Which flashing is the best for my project?<br />

A. Dakea roof windows must be installed with our<br />

original flashings, which are all easy and fast to<br />

install, durable and come with a 20-year<br />

guarantee. Our range includes:<br />

Flush flashing for recessed installation of single<br />

roof window into slate profile height 16mm<br />

(2x8mm) and a roof pitch range of 20-90º.<br />

Slate flashing is suitable for slates and flat<br />

roofing, up to 16mm (2x8mm).<br />

Universal flashing is the universal solution for high<br />

tiles between 16-120mm. Great for high profile<br />

tiles, flat slates, pantiles, corrugated roofing<br />

sheets etc. Also available as a Combi flashing.<br />

Dakea offer a 20-year guarantee on roof windows and<br />

flashings.<br />

Tile Flashing is suitable for tiles and profiled<br />

materials between 16-50mm.<br />

Standing Seam Flashing is made for installation<br />

of windows in ‘click’ standing seam metal sheet.<br />

Tile Flashing For Interlocking Flat Tiles ensures<br />

aesthetic and watertight installation for<br />

interlocking flat tiles between 16 and 50mm.<br />

Plain Tile Flashing is for installation of roof<br />

windows into plain tiles, with a profile height<br />

28mm (2x14mm) max length 340mm and<br />

suitable for a roof pitch of 25-90º.<br />

Our Slate Flashing With One Piece Side Element is<br />

suitable for slates and flat roofing up to 8mm<br />

(max overall thickness is 16mm). It’s also<br />

available as a Combi flashing.<br />

FCX Combi Tile Flashing is applicable in roof pitch<br />

range of 15-90º and suitable for interlocking flat<br />

tiles between 16-50mm thickness and for roof<br />

window horizontal distance of 120mm. This new<br />

flashing is 100% watertight, easy to install and<br />

weather and UV ray resistant. With no apron, it<br />

ensures a perfect seal to flat roofing materials.<br />

How to install flashing:<br />

1. Remember the drainage gutter above the<br />

window.<br />

2. Fix the bottom flashing section to the frame.<br />

3. Fit bottom sill cover, side flashing sections,<br />

and side frame cladding cover parts.<br />

4. Fit top casing cover part, fix it with the<br />

provided screws, and fit the top flashing section.<br />

5. Replace tiles.<br />

6. Replace the sash in frame and you’re done!<br />

Q. Where do I go for further help?<br />

A. When you buy a Dakea roof window or accessory<br />

we deliver more than just your order: we’re with<br />

you every step of the way, from choosing the right<br />

window, to helping you with installation and<br />

aftercare. We’re so confident in the quality of our<br />

windows we give you peace of mind with a 20-year<br />

guarantee on our roof windows and flashings – and<br />

two years on our blinds and accessories. Our<br />

Dakea PROapp also offers professionals a loyalty<br />

reward scheme and an easy option to register the<br />

guarantee for our roof windows. No wonder we<br />

have so many lasting working relationships with<br />

homebuilders and installers.<br />

We’ve also got a range of videos to help you.<br />

Whether you’re a contractor, installer, roofer or a<br />

tradesperson, Dakea knows your reputation<br />

matters. That’s why we launched our Trade<br />

Matters campaign to help, which includes three<br />

downloadable tools to ‘boost the buzz’ around<br />

your business.<br />

We also offer free downloadable Trade Matters<br />

guides to support tradespeople with tech which<br />

includes guidance on how to use the latest sites,<br />

apps and equipment, learning new skills online<br />

and generating new business.<br />

And remember...<br />

Dakea worked hard throughout 2020 to support<br />

suppliers and installers, and we will continue to<br />

do so into <strong>2021</strong>. We are always here to offer<br />

technical and installation advice and are<br />

continuously improving and innovating with some<br />

new products coming soon.<br />

Contact Dakea<br />

www.dakea.co.uk<br />

www.dakea.co.uk/trade-matters/<br />

@dakea_uk<br />

JANUARY <strong>2021</strong> TC 37


CERTIFIED NON-COMBUSTIBLE<br />

6<br />

a<br />

QI ROCKFACE A2:<br />

www.quantuminsulation.com


As we close the door on the first Pandemic to hit the World in 100<br />

years, it almost seems strange to be reflecting back on the ongoing<br />

impact of an event that happened on 14th June 2017. The Grenfell<br />

Tower Tragedy was an event that shocked the world, leading to Dame<br />

Judith Hackitt’s ‘Building a Better Future’ report, the Grenfell Tower<br />

Inquiry, chaired by Sir Martin Moore-Bick, brought about a series<br />

of changes to Approved Document B (ADB), the ongoing review of<br />

Regulation 7 within ADB and updates to the requirements of insurers<br />

such as the NHBC. The impacts have also led to some buildings<br />

insurers requiring fire performance requirements above those of the<br />

Building Regulations, and introduced the term ‘non-combustible’ into<br />

construction speak.<br />

But what does ‘non-combustible’ mean? From a regulatory/standards/<br />

legal perspective it relates to an individual product being classified<br />

as either A1 or A2-s1,d0 to BS EN 13501-1: 2018 Fire classification of<br />

construction products and building elements. Classification using data<br />

from reaction to fire tests. BS EN 13501-1: 2018 has many other ratings<br />

for products but none of these ratings are classed as ‘non-combustible’.<br />

For example, most flat roof insulation products achieve an E classification,<br />

including some that achieve an A1 classification without a facing but<br />

change to an E when a facing is applied.<br />

So, we know what ‘non-combustible’ means, but where does<br />

it apply and what products comply with these requirements<br />

are obvious next questions. That is both simple and difficult to<br />

answer from a roofing perspective as you can use ‘combustible’<br />

products in some applications but not in others.<br />

From a regulatory perspective insulations that achieve a Class E can be<br />

used in roofs, roof terraces, enclosed balconies over heated space and<br />

insulated walkways; but an insurer may make it part of the Employers<br />

Requirements that a ‘non-combustible’ insulation is used, so always check<br />

the ER’s closely. The reason the regulations allow combustible insulation<br />

within a flat roof is because, unlike an external wall, the roof assembly is<br />

tested as a constructed system rather than individual components. The<br />

tested system is then classified as Broof(t4), Croof(t4), Droof(t4), Eroof(t4)<br />

or Froof(t4) in accordance with BS EN 13501-5: 2016 Fire classification<br />

of construction products and building elements. Classification using data<br />

from external fire exposure to roofs tests. Subject to the distance to the<br />

boundary a roofing system of the relevant classification can be installed.<br />

This information can be found in Table 14.1 of Approved Documents B.<br />

Combustible insulation boards cannot be used in applications that are<br />

classed as Specified Attachments. Specified Attachments is another<br />

new term for the roofing industry to come to terms with. It relates to<br />

classifying specific types of construction as part of the external wall, and<br />

most external wall components are required to be ‘non-combustible’.<br />

From a roofing contractors perspective Specified Attachments are<br />

projecting open balconies, projecting enclosed balconies, recessed open<br />

balconies and/or recessed enclosed balconies. The definition of these is<br />

covered in BS 8579: 2020 Guide to the design of balconies and terraces.<br />

In any Specified Attachment application, the insulation board must be<br />

non-combustible i.e. A1 or A2-s1,d0 to BS EN 13501-1: 2018. However,<br />

the waterproofing membrane is exempt from this requirement under<br />

Regulation 7 (3)(g) of Approved Document B.<br />

So that solves that then, you can install a combustible insulation<br />

such as PIR/EPS/XPS/VIP on a flat roof but you have to use Stonewool<br />

or Cellular Glass on balconies to comply with the Building Regulations.<br />

Well, not quite. Other than the potential insurers requirements there is<br />

the matter of the insulation to the upstands to consider, and whilst that is<br />

not currently clear in Approved Document B, the likely direction of travel<br />

in the forthcoming clarification can be identified in the November 2020<br />

edition of NHBC Technical Extra Issue 26.<br />

Page 13 of Technical Extra Issue 26 provides guidance that follows the<br />

Robust Details advice to eliminate the thermal bridge at the point where<br />

the roof, balcony or terrace abuts an external wall by placing thermal<br />

insulation against the wall and then waterproofing over it – a standard<br />

detail for every roofing contractor in the country. Technical Extra Issue<br />

26 advises that combustible thermal breaks are an exclusion under<br />

Regulation 7(3)(i) but subject to some specific conditions such as:<br />

• The abutment not being against a habituated space – meaning if the<br />

wall forms part of the dwelling/apartment you cannot use combustible<br />

insulation, you must use non-combustible insulation.<br />

• The thermal break being no higher than 150mm above the finished<br />

roof level/walking surface – meaning if your insulation will be more<br />

than 150mm above finishes level it needs to be non-combustible.<br />

• The thermal break insulation cannot be thicker than 60mm – meaning<br />

that if your insulation will be more than 60mm thick it needs to be noncombustible.<br />

• The combustible insulation cannot span across a compartment line –<br />

meaning if it does your insulation will need to be non-combustible.<br />

These are some twists and turns to the specification and installation<br />

process that you need to ensure your site team/fitters are aware of<br />

to ensure compliance. Sort of begs the question as to why it’s not just<br />

made simple by saying you must use non-combustible insulation on<br />

all upstands!<br />

Also, this guidance is suggesting that you can use combustible<br />

insulation on the vertical section of projecting open balconies,<br />

projecting enclosed balconies, recessed open balconies and/or recessed<br />

enclosed balconies but you have to use a non-combustible on the flat.<br />

A strange twist of regulation if there ever was one.<br />

At Quantum Insulation we work hard to keep up to date with all<br />

regulatory changes, and particularly the ongoing situation with regards<br />

to the fire regulations. We hope that comes through in this brief<br />

overview of a complex subject that is affecting every roofing and cladding<br />

company in the United Kingdom, and taking up many hours of roofing<br />

sector Trade Associations such as NFRC, LRWA, SPRA and GRO. We believe<br />

it is our role to be more than a traditional insulation distribution business.<br />

We aim to work as an industry partner to our roofing contractor customers<br />

and help them ensure their installations are compliant with regulations<br />

and standards. Whether it’s technical advice, thermal calculations,<br />

product certification, FORS deliveries, just in time deliveries, prestropped<br />

insulation for speedy unloading or clarification on product<br />

performance and suitability for application, we are here to help.<br />

For more information about non-combustible<br />

products from QI, contact: 01858 456018 or<br />

email: sales@quantuminsulation.com<br />

Approved Document B can be downloaded at https://assets.publishing.service.gov.<br />

uk/government/uploads/system/uploads/attachment_data/file/937931/ADB_Vol1_<br />

Dwellings_2019_edition_inc_2020_amendments.pdf<br />

NHBC Technical Extra Issue 26 can be downloaded at https://www.nhbc.co.uk/binaries/<br />

content/assets/nhbc/tech-extra/2020/technical-extra-november-2020-issue-26.pdf


New Roofing products Updates<br />

M-TRAY RECOGNISED<br />

Wallbarn’s M-Tray modular green roof<br />

solution has scooped a win at the prestigious<br />

Build It Awards 2020, with judges naming it<br />

the ‘Best Roofing System or Product’.<br />

The Build It Awards are said to be amongst the<br />

most sought after accolades within the self-build<br />

and renovation industry, recognising excellence<br />

in products, services, suppliers and projects.<br />

Build It Editor Chris Bates said the industry was<br />

built upon ‘twin foundations’ of innovation and<br />

unrivalled customer support and, even in these<br />

exceptional times, those qualities shone through<br />

TWO NEW ONLINE CPDS FROM CUPA<br />

CUPA PIZARRAS is now hosting two online CPDs.<br />

For further info on all these updates and more, visit www.total-contractor.co.uk<br />

in this year’s ‘impressive’ shortlist.<br />

Richard Bacon MP, who introduced the Self-build<br />

and Custom Housebuilding Act 2015, announced<br />

the winners during a virtual ceremony on<br />

November 27th, with Wallbarn winning one of the<br />

25 top awards. He said of M-Tray: “Green roofs<br />

are growing in popularity, helping to reduce the<br />

visual impact of a project and improving<br />

biodiversity. This system makes installation easy<br />

for any hands-on self-builder.”<br />

Director Julian Thurbin said: “We are absolutely<br />

over the moon with this award. We are so glad<br />

Above: Wallbarn’s M-Tray modular green roof.<br />

the panel saw the benefit to the self-build sector<br />

in having an easy to carry and install green roof<br />

solution. We want to say a big thank you to Chris<br />

and the team for their very generous assessment<br />

of what we have been trying to achieve.”<br />

www.wallbarn.com<br />

The first of the CPDs discusses the technical and design criteria for specifying slate, while the second covers the<br />

benefits of using a natural slate rainscreen cladding system. Both are free to attend with tickets available via<br />

eventbrite. The specification of natural slate CPD seminar covers the key design and technical factors that need CUPA PIZARRAS has launched two online CPDs<br />

to be considered. The presentation explains the manufacturing process used by CUPA PIZARRAS, as well as the importance of traceability and testing.<br />

Furthermore, the CPD discusses the classification of slate and the fixing methods available to ensure confidence when making a final product and<br />

system selection. Available to attend each month, the natural slate rainscreen cladding system CPD provides an overview of the benefits of using<br />

natural slate as a sustainable, non-combustible cladding system. The CPD also covers the production and application of natural slate cladding systems<br />

from technical and practical viewpoints. In addition, the CUPA PIZARRAS team also explains the different fixing methods available and the importance of<br />

choosing a BBA approved system. Terry Collins, Specification Manager at CUPA PIZARRAS, commented: “We have developed the online CPDs to ensure<br />

specifiers can still access key information during the pandemic and for when they are working from home.” Visit the eventbrite page for further info:<br />

https://www.eventbrite.co.uk/o/cupa-pizarras-world-leader-in-natural-slate-29672279119<br />

FLAT ROOF FIRE RISK ADDRESSED<br />

With roofs maintaining their prominent role in contemporary building design, ROCKWOOL has released a<br />

new whitepaper exploring how roofing contractors and specifiers can manage fire risk when planning and<br />

installing flat roofs.<br />

www.rockwool.co.uk.<br />

The ‘Flat Roofs: Managing fire risk in the fifth façade’ report addresses misconceptions around testing protocols and material fire classification ratings,<br />

plus examines the worrying rise in roof fires and the resulting social and economic impact. The whitepaper, which is available to download at<br />

www.rockwool.co.uk/fifthfacade then outlines specification best practice for flat roof insulation and how to futureproof the complete building envelope<br />

in line with expected changes to Building Regulations. “The role of the roof is an expanding one,” explains Paul Barrett, Head of Product Management at<br />

ROCKWOOL. “While previously their primary function was practical, now we’re seeing roof spaces used as an additional communal or leisure space, as<br />

well as to house solar PV, plant equipment and rainwater management systems. Yet as the function of the roof has expanded, the focus on fire protection<br />

measures hasn’t increased at the same pace. This report explores the risks of exposed flat roofs, delves into the effects of recent prominent fires, and<br />

then advises roofing contractors and specifiers on how to select materials that will help protect lives and the remaining building structure in case of fire.<br />

It’s an essential read for anyone involved in roofing specification.”<br />

40 TC JANUARY <strong>2021</strong>


NEW HEIGHTS FOR KEYLITE<br />

Over 60 Keylite Roof Windows have been<br />

installed to new homes and flats in the Brooke<br />

Close housing development in Margate.<br />

The Roman Fields development, situated in the<br />

village of Garlinge beside Brooke Avenue in<br />

Margate, comprises 43 homes that come with<br />

integrated kitchen appliances, a ten year<br />

warranty, built-in wardrobes and parking.<br />

Designed by architectural firm Urban Surveying<br />

and Design and built by well-respected local<br />

contractors PCR Projects, the development<br />

required 60 Keylite Polar White PVC Centre Pivot,<br />

Thermal Glazing Roof<br />

Windows to be installed in<br />

each of the houses, and two<br />

Keylite White Painted Centre<br />

Pivot, Thermal Glazing Roof<br />

Windows, with Smoke<br />

Ventilation Kits in each of the<br />

blocks of flats.<br />

Scott Ridgen, Managing Director at Urban<br />

Surveying and Design Ltd said: “We are very<br />

much a design-led practice and so the aesthetics<br />

of Keylite Roof Windows really appealed to us,<br />

The Keylite Roof Windows offer peace of mind for<br />

the building contractor PCR Projects.<br />

especially knowing how they<br />

would sit on the roof lines and<br />

create a point of differentiation<br />

for this particular project.<br />

“The fact that the windows<br />

offered great quality at a<br />

reasonable price-point was<br />

also a great incentive for us.<br />

We’ve actually gone ahead and specified more<br />

Keylite Roof Windows for another project we are<br />

currently working on, so it’s safe to say we are<br />

very impressed.”www.keyliteroofwindows.com<br />

FINANCIAL KNOW-HOW WITH DAKEA<br />

Dakea has launched a downloadable factsheet to help installers and contractors sort out their finances.<br />

The factsheet is part of the company’s monthly Trade Matters campaign. With many installers and contractors<br />

having some downtime over winter, Dakea is keen to help installers and housebuilders make the most of it by getting<br />

on top of their finances. Dakea says it has spoken to experts in the field to recommend eight steps will make all the<br />

difference to anyone working in the industry who needs a bit of financial TLC… These are the areas that Dakea advise installers to look at: Working out<br />

if you need to be VAT registered and the benefits of both registration and non-registration; Knowing which deadlines are vital and marking them on your<br />

<strong>2021</strong> calendar; How installers can find the right accountant to suit them and help them navigate HMRC successfully; Understanding capital assets and<br />

which goods and services can be claimed back, plus other top tips to keep on top of your financial good health; Dakea also has a toolkit of easy-to-use<br />

templates to help you keep track of mileage, cash flow and budgeting, as well as a template for invoicing customers as and advice on tackling late<br />

payments. Andrew Birch, Dakea Regional Sales Manager, explained: “Dakea understand how tough 2020 has been for many of our installers, which is<br />

why we’re here to help them with all aspects of their career. We’re happy that this free, downloadable guide will help them do all they need to get their<br />

financial ducks in a row and in a good place to start working in <strong>2021</strong> and beyond.” www.dakea.co.uk/trade-matters/<br />

COMMERCIAL SECTOR MOVE FOR PERMAROOF<br />

Permaroof – the UK’s leading importer and distributor of Firestone RubberCover – is expanding into the<br />

commercial sector.<br />

Adrian Buttress, Permaroof Managing Director.<br />

Building on its past experience of supplying rubber membranes to its customer base working on commercial<br />

projects and its expansion into modular projects during the UK-wide lockdown this year, the business now<br />

offers design, specification and installation on commercial projects using the proven and durable rubber<br />

membrane Firestone RubberGard EPDM.<br />

Adrian Buttress, Managing Director of Permaroof and the wider PermaGroup, said: “During our time specialising in domestic flat roofing projects, we’ve<br />

proven ourselves in the residential sector and gained unrivalled expertise of the industry. After hitting our 20-year-old company milestone and with a<br />

record year in 2020, we were ready to expand our offering.<br />

“The next logical step was to use our knowledge and move into the commercial sector – further increasing our portfolio of providing permanent solutions<br />

to age-old problems. Our vision is to become a leading commercial flat roofing supplier within just two years.” www.permaroof.co.uk<br />

JANUARY <strong>2021</strong> TC 41


Rainscreen Subframes<br />

UNDERSTANDING THERMAL<br />

PERFORMANCE IN DESIGN & BUILD<br />

More than ever, contractors need to be aware of how to construct buildings that are<br />

sustainable and thermally efficient. Simon Fielden, Sales Director at SFS UK, discusses<br />

what this means in terms of the design and build of rainscreen subframe systems.<br />

The issue of climate change has been<br />

bubbling away for almost two decades now,<br />

but it truly is coming to a head following<br />

some alarming figures which came out recently.<br />

As reported by The Guardian, according to the<br />

UN’s World Meteorological Organization, climateheating<br />

gases have reached record levels in the<br />

atmosphere. Scientists calculate that emissions<br />

must fall by half by 2030 to give a good chance of<br />

limiting global heating to 1.5ºC, beyond which<br />

hundreds of millions of people will face more<br />

heatwaves, droughts, floods and poverty.<br />

With buildings accounting for a significant<br />

percentage of emissions across the globe, the<br />

need to reduce operational energy consumption<br />

has never been greater. Badly insulated houses<br />

experience 35% of heat loss through their walls<br />

(Designing Buildings), and around 75% of an<br />

industrial unit’s heat is lost through the building<br />

fabric (Carbon Trust).<br />

A further issue is the apparent performance gap<br />

which may exist between the initial design and<br />

subsequent construction, which could result in<br />

underachievement when delivering the desired<br />

thermal performance when the building is<br />

operational.<br />

Taking a detailed approach to U-values<br />

This is where contractors and developers must<br />

take a deep look into how the building will<br />

perform thermally. ‘The devil lies in the detail’<br />

idiom is apt here. On paper, it might seem easy to<br />

“Contractors must pay<br />

careful attention to the<br />

selection of rainscreen<br />

subframes”<br />

achieve the desired thermal performance – U-<br />

value of a façade. However, the requirement of<br />

numerous rainscreen subframe components into<br />

a design, such as brackets, can adversely affect<br />

the insulation performance hugely.<br />

U-values are often cited when thermal<br />

performance is under consideration. Expressed as<br />

W/m²K, this describes the rate of heat loss of a<br />

façade. U-value attainment figures are prescribed<br />

within Part L1 & L2 of the Building Regulations.<br />

A well thought out building envelope, which has a<br />

robust design and mitigates thermal bridging is<br />

the most effective way to reduce heat loss.<br />

Contractors must pay careful attention to the<br />

selection of rainscreen subframes to produce the<br />

appropriate and optimum level of thermal<br />

performance.<br />

By doing so, the thermal performance of both<br />

commercial and domestic properties can be<br />

increased considerably, without the need for<br />

additional or thicker insulation. In many cases,<br />

more insulation may not always be possible due<br />

to additional cost implications and space or<br />

footprint restraints of the building.<br />

Thermal bridging – a leading cause of<br />

heat loss<br />

When under specified, subframe assemblies can<br />

lead to excessive thermal cold bridging. Thermal<br />

bridging happens when there is a thermally<br />

conductive connection i.e. a rainscreen subframe<br />

bracket, between the inside and outside of a<br />

building which penetrates the insulation layer.<br />

The additional heat loss caused by a thermal<br />

bridge is called the ‘point thermal transmittance’<br />

or ‘Chi’ value which is measured in (W/(m²K)).


This ‘bridge’ results in wasted heat transfer<br />

across the connection, changing the internal<br />

surface temperature. A side effect of thermal<br />

bridging is condensation, as warm, damp internal<br />

air is coming into contact with the cold surface,<br />

causing further issues like mould growth.<br />

Thermal bridging may be responsible for up to<br />

30% of a dwelling’s heat loss, according to<br />

research from BRE (Building Research<br />

Establishment). To minimise these issues,<br />

contractors must work with developers and<br />

designers to ensure they have properly specified<br />

the optimum brackets system.<br />

In doing so, thermal bridging will be reduced, and<br />

it will improve real-world U-value ratings while<br />

prolonging the lifespan of the building.<br />

Contractors can also inherently comply with Part<br />

L 1A and 1B of the Building Regulations that<br />

focus on the conservation of fuel and power in<br />

both new and existing dwellings.<br />

Superior performance, optimised thermal<br />

solutions<br />

The ideal thermal design for a project can be<br />

achieved by the selection of the most appropriate<br />

rainscreen support or subframe system. It should<br />

be optimised for performance and budget.<br />

Requirements for each rainscreen cladding<br />

project are often different and depend on various<br />

factors such as wind load, building height and<br />

substrates used. Once these variables have been<br />

determined, contractors should use 3D thermal<br />

modelling to calculate thermal point loss from<br />

rainscreen products’ datasheets.<br />

From here, this modelling is utilised to<br />

dynamically calculate the required insulation<br />

thickness needed to achieve the desired U-value<br />

for a design. Such calculations must conform to<br />

EN 10211:2007.<br />

SFS’ ‘Project Builder’ calculation tool is designed<br />

to submit project specific data and provide an<br />

NVELOPE subframe solution which includes<br />

indicative m² rates and preliminary static<br />

calculations.<br />

At the heart of NVELOPE Thermal Solutions is a<br />

high performing thermal pad which insulates the<br />

bracket from the primary wall structure, created<br />

to minimise thermal point loss. The unique design<br />

guards against thermal degradation caused by<br />

compression when fixed to the façade, ensuring<br />

there is no loss in thermal performance.<br />

A2 rated in accordance to BS EN 13501, the<br />

thermal pad is highly insulating with a thermal<br />

conductivity rate of only 0.015 W/mK. NVELOPE<br />

Thermal Solutions comprises well-established<br />

and understood brackets manufactured out of<br />

aluminium, as well as a new stainless-steel<br />

range, both of which can be used in conjunction<br />

with the SFS thermal pad to offer a suite of<br />

solutions to match budget and performance<br />

requirements.<br />

Changing the outlook on climate change<br />

To slow down and reverse the effects of global<br />

warming, the way buildings are designed and<br />

constructed must change.<br />

With smart thermal solutions and by choosing the<br />

optimum combination of rainscreen subframes<br />

and fixings, energy consumption of new and old<br />

buildings can be reduced long term. Not only this,<br />

but we can also ensure the building envelope is<br />

built ‘right first time’, waste is minimised, and<br />

projects run smoothly.<br />

Contact SFS / NVELOPE<br />

www.sfsintec.co.uk / www.nvelope.com<br />

@SFSintec / @NVELOPE_UK<br />

JANUARY <strong>2021</strong> TC 43


Cladding Fabrication<br />

‘OUTSOURCING CUTS CLADDING<br />

FABRICATION COSTS BY 50%’<br />

A survey from Vivalda says the “off the pallet, straight onto the wall” ethos saves time, cost<br />

and improves quality, with Hull Branch Manager Chris Meyerhoff saying he’d “urge any<br />

contractors out there to reconsider this part of their supply chain”...<br />

Research undertaken by Vivalda Group, the<br />

UK’s largest supplier of non-combustible<br />

cladding, suggests that sub-contractors<br />

could reduce their fabrication costs by up to 50%<br />

by outsourcing the process.<br />

Vivalda contacted 15 specialist cladding<br />

contractors across the UK and asked them to<br />

provide their hourly rates for three specific<br />

processes; standard board drilling, specialist<br />

drilling, and fixing of brackets to boards. The<br />

supplier says the differences between quoted<br />

sub-contractor rates and those charged by<br />

Vivalda were surprising. Below, Vivalda outlines<br />

its key findings:<br />

• Standard drill holes for rivet and screw fix:<br />

Assuming 12 holes per m2, average subcontractor<br />

labour rates quoted were up to 50%<br />

higher than those charged by Vivalda.<br />

• Specialist ‘secret fix’ drill holes: The price<br />

difference between specialist off-site fabrication<br />

and on-site labour rates quoted was equally<br />

remarkable. Overall, prices quoted for this more<br />

complex procedure were approximately 20%<br />

higher compared to the cost of standard drilling.<br />

Sub-contractor labour rates for this work came<br />

out at approximately 40% more expensive when<br />

compared to prices quoted by off-site, high<br />

precision material engineers such as Vivalda.<br />

• Fixing brackets / secret<br />

fixings to board: This too<br />

came out at around 35-<br />

40% higher compared to<br />

rates typically charged by<br />

third party suppliers.<br />

Major trend<br />

Commenting on the findings,<br />

Chris Meyerhoff, Branch<br />

Manager at Vivalda’s Hull branch,<br />

said: “We are seeing a major trend towards offsite<br />

fabrication, with contractors increasingly<br />

turning to us to cut boards to size, drill holes and<br />

even fix brackets so that facades can be installed<br />

as soon as they arrive on site. Despite the proven<br />

cost savings and quality guarantees offered by<br />

outsourcing, we wanted to understand why a<br />

hardcore of contractors continue to do this job inhouse.<br />

After all, it’s a notoriously timeconsuming<br />

job that a lot of subbies don’t like<br />

doing on-site. That’s why we undertook this<br />

research into the relative costs quoted for this<br />

activity.<br />

“Given the very clear savings contractors could<br />

make by outsourcing elements of their cladding<br />

fabrication process, we have to ask why aren’t all<br />

sub-contractors using third party specialists to<br />

prepare boards ready for on-site installation? Is it<br />

“We are seeing a major trend towards off-site<br />

fabrication, with contractors increasingly<br />

turning to us to cut boards to size, drill holes and<br />

even fix brackets so that facades can be installed<br />

as soon as they arrive on site”<br />

Chris Meyerhoff, Vivalda’s Hull Branch<br />

manager.<br />

about control and quality?<br />

With damaged and poorly<br />

cut boards as the likely<br />

outcome, I cannot<br />

imagine this is a good<br />

reason. Also, our use of<br />

CNC technology ensures<br />

boards are cut to within the<br />

tightest tolerances, with brackets fixed<br />

using the right tools in well lit, warm<br />

surroundings, as opposed to rainswept, building<br />

sites with restricted space and strict on-site<br />

working regulations.<br />

“Perhaps some sub-contractors don’t consider<br />

the cost of fixings as being that significant? Well,<br />

for a project comprising 5,000m² of cladding, our<br />

investigation suggests that this could cost<br />

anywhere from £300,000 to £600,000 in fixing<br />

labour costs – depending on the location and<br />

complexity of the project. That’s not chicken feed<br />

in anyone’s book. I’d urge any contractors out<br />

there to reconsider this part of their supply chain<br />

as it could improve quality, reduce accidents and<br />

boost profits in one fell swoop.”<br />

Based on its recent survey, Vivalda Group says its<br />

UK-wide fabrication facilities could save subcontractors<br />

between 35 and 50% on labour<br />

costs, while significantly improving the accuracy<br />

and quality of the cladding systems prior to<br />

installation.<br />

Contact Vivalda<br />

www.vivalda.co.uk<br />

@VivaldaLimited<br />

44 TC JANUARY <strong>2021</strong>


GET AHEAD<br />

OF THE<br />

GAME…<br />

…with new building safety regulations coming, proving the competency of<br />

your team is going to be critical. Register NOW to start your operatives on their<br />

RoofCERT journey. Don’t be left behind with the changes afoot.<br />

Register at www.roofcert.co.uk/tc<br />

Register TODAY<br />

2,000 funded<br />

accreditations available<br />

a saving of ~£300 per operative*<br />

RoofCERT—the home of Roofing Professionals<br />

RoofCERT accreditation benefits your company through:<br />

• Your team having clear proof of their skills and knowledge<br />

• Providing an easy to manage training record for operatives<br />

• Recognition of employing those with the highest professional standards<br />

• Being ahead of forthcoming regulatory changes in the sector<br />

• Supporting professionalisation of the roofing industry<br />

Interested in finding out more about putting your company’s operatives<br />

through RoofCERT accreditation? Call 020 3940 0053<br />

* Funding covers the RoofCERT Knowledge Test and evaluation of training and qualifications. Operatives may<br />

still need to cover costs of mandatory health and safety training if they do not already have the required evidence.


Cladding & Sheeting Updates<br />

INVESTMENT BENEFITS<br />

MSP has invested £250,000 in new technology facilitated by parent company Vivalda Group, which<br />

and improved facilities to meet increased also owns the Prism Powder Coating and Pura<br />

demand for its services.<br />

Facades brands.<br />

Among its new acquisitions is a CNC-controlled Gillian Thomson, Branch Manager at MSP, said:<br />

Mayer beam saw and a second Rainer Eletek turret “Prior to this investment we suffered from a bottle<br />

punch. These machines will dramatically improve neck – as we had four brake presses that were<br />

the plant’s capacity, enabling it to provide<br />

being fed by a single turret punch. With our new<br />

developers and contractors across the UK with a Rainer machine, this doubles our throughput, giving<br />

wide range of non-flammable, bespoke façade us much more capacity. Our new CNC beam saw is<br />

systems. New air filtration and dust extraction another vital investment as it enables us to<br />

systems have also been installed to meet the accurately cut cladding board to length – a service<br />

highest safety standards. The investment has been we also provide to our colleagues at sister company<br />

Above: Gillian Thomson, Branch Manager at MSP.<br />

Vivalda Scotland.”<br />

In addition to this investment, MSP has bought an<br />

additional fork lift truck to cope with increased<br />

workload at the Cumbernauld facility. The<br />

improvement programme has also included<br />

significant changes to the factory’s layout,<br />

improved lighting, office refits as well as structural<br />

work on the building. www.vivalda.co.uk /<br />

NEW BRICKCLAD BRICK RANGES LAUNCHED<br />

SureClad patented ventilated façade systems has developed two innovative BrickClad brick ranges, with a unique<br />

mechanical fixing system engineered and manufactured in-house.<br />

Alongside its SureClad Ceramic Granite, Engineered Stone, Natural Stone and Terracotta façades, installed with the Queen’s<br />

Award winning SureClad Access or Hang-on fixing systems, Shackerley now offers the Saxony and Rustic BrickClad<br />

mechanically-fixed brick systems. Designed to provide increased choice and flexibility for specifiers, contractors and<br />

developers from the trusted Shackerley brand, the new ranges provide an ideal solution for a lightweight and robust brick<br />

façade that is faster and easier to install, while providing an authentic and durable traditional brick appearance. The Saxony BrickClad range is<br />

manufactured using Westerwald clays, which are internationally renowned for their purity and only found in North West Germany. Monitored during<br />

production in line with Shackerley’s strict ISO 9001-certified quality assurance commitment, the bricks in the Saxony BrickClad range are fired at<br />

temperatures as high as 1260ºC. This irreversibly fuses the clay molecules to create impervious and extremely durable bricks for an attractive and<br />

hardwearing façade. Manufactured using specially selected refined clays, chosen to ensure hardwearing and attractive brick facades, Rustic BrickClad<br />

bricks are extruded through special dies to meet Shackerley’s high quality standards and offer a variety of brick colours and textures. www.shackerley.com<br />

COPPER KEY TO VET SCHOOL EXTERIOR<br />

Structural and civil engineering practice, JPG Group, has been appointed by Seddon to provide<br />

consultancy services for a new 57,000ft² veterinary school at Keele University.<br />

JPG is working alongside Jefferson Sheard Architects and Seddon to deliver the £16 million scheme for public<br />

sector specialist developer Noviniti. The new campus-based Veterinary School will include teaching, lecture and<br />

laboratory facilities to support the Bachelor of Veterinary Medicine and Surgery degree programme. The building is to be used both by Keele University<br />

and Harper Adams University, as a shared facility and is to be located on a cleared site within the existing grounds of Keele University Science and<br />

Innovation Park.<br />

JPG is providing full civil and structural engineering expertise on the project which is now on site. This includes site infrastructure works and surrounding<br />

landscaping, as well as the impressive three storey arrow shaped building formed around a central courtyard space. Exterior copper cladding and full glazing<br />

to the entrance atrium will create an impressive gateway to the new facility which will house modern and flexible space inside. David Allwood, Director at<br />

JPG Group said: “We are delighted to be working with the partnership to deliver a highly impressive, flagship higher education building.” www.jpg.group<br />

46 TC JANUARY <strong>2021</strong>


5 STAR SERVICE<br />

High performance membranes from the A. Wraptite, a self-adhesive, vapour permeable,<br />

Proctor Group have been selected for the airtight membrane, was applied externally, quickly<br />

construction of the new Dean Hotel in Cork, and easily, as part of the rainscreen system.<br />

Ireland.<br />

Shane Kerrisk, project architect, explained:<br />

The 114 bed hotel, with a rooftop restaurant, is “Wraptite was chosen for the ease with which it<br />

just part of an impressive major rejuvenation could be fixed, and for its provision of a<br />

scheme across a 6 acre site at Horgan’s Quay, watertight line when used as part of the<br />

which will include apartments, offices, bars, and Kingspan K-Roc Rainscreen System, and its<br />

restaurants.<br />

performance in relation to fire. It also removed<br />

the requirement to tape and joint the substrate.”<br />

The Dean Hotel has been designed by the award<br />

winning practice Wilson Architecture, with BAM Wraptite is the only self-adhering vapour<br />

Ireland as the main contractor for the project. permeable air barrier certified by the BBA, and<br />

Specialist roofing and cladding contractor Deane combines the important properties of vapour<br />

Roofing and Cladding were appointed for the permeability and airtightness in one selfadhering<br />

membrane. Whilst internal air barriers<br />

façade works.<br />

will need to accommodate building services such<br />

A key requirement was to produce an 8-storey<br />

as electrical, lighting, heating and drainage<br />

building which meets the highest standards in<br />

systems, Wraptite is an external air barrier,<br />

terms of fire, acoustic and thermal performance.<br />

allowing for an almost penetration-free airtight<br />

Instead of using a traditional internal air barrier, layer which can be installed faster and more<br />

Wraptite & Procheck FR200 from A Proctor Group have been<br />

used at the Dean Hotel, Cork.<br />

robustly. Wraptite fully bonds to virtually any<br />

substrate, requiring no mechanical attachment,<br />

seals or tapes to suppress air leakage around<br />

junctions or penetrations.<br />

In addition to the Wraptite air barrier membrane,<br />

Procheck FR200 was selected as a fire retardant<br />

vapour control layer on the project.<br />

Procheck FR200 has a Reaction to Fire<br />

classification of B, s1 –d0 according to the<br />

Euroclass system, which provides assurance of<br />

fire performance for the structure.<br />

www.proctorgroup.com<br />

MCRMA CONTINUES TO ATTRACT NEW MEMBERS<br />

The Metal Cladding and Roofing Manufacturers Association (MCRMA) has welcomed two new member companies to the Association in its<br />

independent inspector and system installer categories.<br />

Commercial Property Surveys Ltd, based in Solihull in the west Midlands, joins the independent inspectors’ category. In addition to providing services to<br />

commercial property landlords and tenants, the company also provides independent roof and industrial cladding inspections to system manufacturers for<br />

warranty audits, installation instruction compliance and more. KR Cladding Systems, based in Newburgh, Aberdeenshire, becomes MCRMA’s second system<br />

installer member. Established for almost 20 years, KR Cladding has an experienced project base in agricultural buildings, storage facilities, commercial<br />

buildings, industrial units, distilleries, and domestic and residential buildings. www.mcrma.co.uk<br />

CUPACLAD SCOOPS AWARD<br />

CUPA PIZARRAS took home the award for Best Cladding System at the virtual Build It Awards ceremony.<br />

The Spanish slate company’s CUPACLAD Natural Slate Rainscreen Cladding system was recognised for its durability,<br />

sustainability, timeless design and straightforward installation. Yasmin Herfegar, UK CUPACLAD Coordinator at CUPA<br />

PIZARRAS, commented: “We were delighted that our CUPACLAD system has won this award and been recognised for its<br />

sustainable credentials and its practicality as a cladding system. Rainscreen cladding systems are now widely considered<br />

to be the most efficient solution available for construction purposes due to the double-wall design, providing insulation<br />

and keeping out the rain and wind.“ www.cupapizarras.com/uk/rainscreen-cladding/<br />

CUPACLAD 101 Logic at Costa St.<br />

JANUARY <strong>2021</strong> TC 47


Mineral Wool<br />

5 MYTHS ABOUT MINERAL WOOL<br />

For years, Mineral Wool insulation has been one of the most reliable products in a<br />

contractor’s arsenal. But over time, Knauf Insulation says a few misconceptions have sprung<br />

up that could be preventing you from making the most of everything Mineral Wool has to<br />

offer. Asif Dar, Technical Services Manager at Knauf Insulation, addresses some common<br />

myths that he believes may be holding you back...<br />

Myth: For thermal performance, rigid<br />

foam board insulation is better than<br />

Mineral Wool<br />

Truth: On paper, foam insulation materials can<br />

offer lower thermal conductivity across a given<br />

thickness than Mineral Wool, but when installed<br />

this rarely translates into superior thermal<br />

performance. This is because rigid foam boards<br />

are difficult to install correctly.<br />

Even the slightest misalignment in boards –<br />

caused by on-site cutting or snots that prevent<br />

contact with the substrate, for example – leads to<br />

air gaps that will reduce thermal performance. In<br />

contrast, I feel Mineral Wool installation is much<br />

easier to get right; its fibrous structure and<br />

compressibility allow it to adapt to the substrate,<br />

and individual slabs or rolls ‘knit’ together to seal<br />

gaps.<br />

In my view, this means that in practice the<br />

theoretical gain in performance from rigid foam is<br />

rarely achieved in full, and comparable U-values<br />

can be achieved with both materials using less<br />

Mineral Wool insulation than is often expected.<br />

Myth: Mineral Wool loses its thermal<br />

performance when it gets wet<br />

Truth: Mineral Wool products designed for use in<br />

external applications such as cavity walls or in<br />

rainscreen façade systems contain water<br />

repellent additives. This keeps water at bay if it<br />

rains while the insulation is being installed or<br />

during its lifespan in a fully-fitted cavity wall.<br />

Provided the right product is used for the<br />

application, any residual moisture after<br />

installation will dry out, leaving the Mineral<br />

Wool’s thermal performance<br />

unaffected. Tests by the<br />

European Insulation<br />

Manufacturers Association<br />

(Eurima) found that correctly<br />

installed Mineral Wool<br />

insulation retained its thermal<br />

performance even after 55 years.<br />

Myth: Mineral wool is unpleasant to use<br />

Truth: We know that some installers have<br />

experienced discomfort working with some<br />

Mineral Wool products. Our research has shown<br />

that it is the binder that ‘glues’ the individual<br />

strands of Mineral Wool together that causes<br />

installer discomfort, not the material itself.<br />

Traditionally, these binders are oil-based, contain<br />

phenol or formaldehyde and emit volatile organic<br />

compounds (VOCs), but there is an alternative.<br />

The majority of Knauf Insulation Mineral Wool<br />

products are manufactured using ECOSE<br />

Technology, our unique bio-based binder that<br />

contains no added phenol or formaldehyde. This<br />

means it generates very low levels of dust, is soft<br />

to touch and easy to handle.<br />

Myth: Rock Mineral Wool is better than Glass<br />

Mineral Wool for noise reduction<br />

Truth: Our research shows that Glass Mineral<br />

Wool performs as well as Rock Mineral Wool, and<br />

actually outperforms it in certain applications.<br />

Tests were conducted using a standard internal<br />

wall build-up comprising a metal stud partition at<br />

600mm centres. Installing a Glass Mineral Wool<br />

product designed for use in acoustic applications<br />

resulted in a 44.8 dB DnTw reduction in sound.<br />

Asif Dar, Technical Services Manager at<br />

Knauf Insulation.<br />

Swapping to a higher density<br />

Rock Mineral Wool insulation<br />

saw sound reduction decrease<br />

to 43.9 dB DnTw and again to<br />

41.0 dB DnTw with an even<br />

higher density Rock Mineral Wool<br />

insulation.<br />

As ever, the right product to use depends on your<br />

project.<br />

Myth: Rock and Glass Mineral Wool have<br />

different Euroclass Reaction to Fire<br />

Classifications<br />

Truth: Unlike other common insulants, both Rock<br />

and Glass Mineral Wool are mostly classed as<br />

non-combustible to BSEN 13501-1, and unfaced<br />

products have the best possible Euroclass A1<br />

Reaction to Fire Classification rating so will not<br />

contribute to the development or spread of fire<br />

should it occur.<br />

The difference comes when fire resistance is<br />

required. Fire resistance measures the ability of a<br />

material or system to resist, and ideally prevent,<br />

the passage of fire from one distinct area to<br />

another. With a melting temperature of over<br />

1,000ºC and its ability to minimise the transfer of<br />

heat from the source (the fire), Rock Mineral Wool<br />

is often used in applications where longer periods<br />

of fire resistance are required.<br />

Contact Knauf Insulation<br />

01744 766666<br />

www.knaufinsulation.co.uk<br />

@KnaufUK<br />

48 TC JANUARY <strong>2021</strong>


Promoting<br />

systems-based<br />

solutions<br />

www.mcrma.co.uk<br />

For metal-based roofing and<br />

cladding systems, products and services.<br />

Representing, Promoting<br />

and Supporting<br />

• Systems manufacturers<br />

• Component manufacturers<br />

• Systems installers<br />

• Independent roofing and cladding inspectors<br />

• Industry support services providers<br />

Visit www.mcrma.co.uk<br />

to find out more about the MCRMA and its members.<br />

The ‘MCRMA The Building Envelope Authority’ is a registered Collective Trademark of the Metal Cladding and Roofing Manufacturers Association Limited.


External Wall Insulation<br />

GUIDANCE FOR EXTERNAL WALL<br />

INSULATION PROJECTS<br />

By Chris Kendall, Senior Field Engineer at Baumit UK.<br />

Earlier this year the Green Building Council<br />

and the National Housing Federation were<br />

among ten organisations calling for an<br />

urgent retrofit of insulation in homes across the<br />

UK, which are reportedly the least energy efficient<br />

in Western Europe. It follows a 2017 report by the<br />

GBC that revealed 25 million UK homes would fail<br />

to meet required insulation standards by 2050 –<br />

the deadline the government has set for the<br />

country to achieve carbon neutral status.<br />

Installing External Wall Insulation<br />

around a property provides a<br />

proven solution to domestic<br />

thermal inefficacy. It not<br />

only reduces a<br />

building’s carbon<br />

footprint, it results in<br />

lower energy bills<br />

for the householder<br />

and helps create<br />

interiors which offer<br />

year-round comfort.<br />

When it comes to the<br />

installation of EWI, the<br />

initial challenge is ensuring<br />

the system itself is compatible<br />

with the substrate it is due to be applied<br />

to. A pre-installation survey will help in this<br />

respect, as well as determine which services – if<br />

any – need to be rerouted away from the wall<br />

before rendering work begins. This means<br />

ensuring items such as flues, gas and waste<br />

pipes are clear of the façade.<br />

Weather conditions will play a large part in<br />

deciding when EWI installation can proceed. Work<br />

should not take place in rain or temperatures<br />

lower than 5 degrees, as applying a system in<br />

such conditions risks trapping moisture within the<br />

substrate.<br />

EWI allows<br />

walls to breathe, but<br />

once in-situ, any damp surface beneath will take<br />

time to dry out, thus potentially compromising the<br />

insulation’s performance. Installers should also<br />

take into consideration the positioning of firebreak<br />

materials – which should be non-combustible –<br />

and follow the industry’s strict safety regulations<br />

relating to exterior cladding.<br />

Compatible solutions<br />

Returning to the subject of system compatibility,<br />

there are three main substrates to consider when<br />

selecting the appropriate EWI solution: masonry,<br />

Above: The Baumit Open system build-up. Opposite page<br />

top: The Nature System build-up. Left; Baumit’s Silikontop.<br />

“Weather conditions<br />

will play a large part in<br />

deciding when EWI<br />

installation can<br />

proceed”<br />

timber frame and concrete. Baumit has a wide<br />

range of EWI systems to suit all types of surface.<br />

For example, its StarSystem EPS, which<br />

comprises expanded polystyrene (EPS) insulation<br />

boards, is suitable for masonry walls. Ideal for<br />

new builds or properties under renovation, the<br />

system is applied directly to the substrate and<br />

finished with a thermal thin coat coloured render<br />

topcoat, resulting in a strong, protective thermal<br />

envelope that will stand the test of time. For<br />

timber frame and concrete surfaces, Baumit’s<br />

MineralTherm is recommended. Noncombustible,<br />

breathable and water repellent, this<br />

mineral wool-based EWI system also improves<br />

sound insulation.<br />

50 TC JANUARY <strong>2021</strong>


(QUITE INTERESTING)<br />

INSULATION FA<br />

ACTS<br />

By QI (Quantum Insulation Ltd)<br />

What’<br />

s the difference between buying XPS by the m 2 rather<br />

than m 3 ?<br />

As part of its approved contractor scheme, Baumit has a number of trusted<br />

applicators who can be relied upon to install its products to the highest<br />

specification. But as with any system regardless of type or industry, its longterm<br />

performance requires a level of general maintenance to uphold its longterm<br />

performance. Once the EWI is installed, installers should advise<br />

building owners to remain vigilant and seal breakages around windows<br />

within the façade, for example, as this could lead to water ingress and future<br />

issues with damp.<br />

Insulating the UK’s underperforming housing stock represents a huge<br />

challenge, but one that requires urgent address if local and governmental<br />

bodies are truly committed to tackling the issues related to climate change.<br />

Reliable, cost-effective and involving a process that is rapid and less harmful<br />

to the environment, EWI offers a clean, simple, effective method of creating<br />

aesthetically-pleasing homes which leave occupants feeling good on the<br />

inside. It’s the smart solution in the quest for a more sustainable way of living.<br />

Above: Baumit’s Silikontop.<br />

In answering this question, we should start by taking a broader look at the<br />

history of how £/m 3 came about, and the many subsequent options that are<br />

now available in the UK Inverted Insulation market today.<br />

Originally only Dow Construction Products supplied the XPS inverted<br />

market in the UK: Roofmate SL. A bulk volume producer, Dow thought in m 3 <br />

manufactured in m 3 and sold m 3 . As the only XPS on the market the Lambda<br />

value was a given, the thickness required to achieve a U-value<br />

straightforward and working out a price per m 2 based on the m 3 simple.<br />

Now jump forward a few years. New players enter the market with new<br />

products.Polyfoam and Kingspan offer an XPS and Jablite introduce an EPS<br />

solution. These are all the same as Roofmate SL aren’t they? No, they are not!<br />

Each has a different Lambda value, meaning the insulation thickness for a<br />

given U-value is different. Some even achieve different declared lambda<br />

values dependent on thickness, with the thinner boards being more<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

when comparing manufacturers, products and thickness.<br />

Then along comes Climate Change Legislation. This led to the withdrawal<br />

of<br />

products such as Roofmate SLX, Kingspan H350, Efyos Artic, etc. all made<br />

<br />

<br />

<br />

<br />

<br />

damage the Planet. Hence them being banned from <strong>January</strong> 2020.<br />

Today, most inverted roof insulation is manufactured using more Climate<br />

friendly gases such as C0 2<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

So now we have a market with numerous manufacturers, differing blowing<br />

technologies, various thicknesses, and all competing to achieve a given<br />

U-value. This is why buying inverted roof insulation in £/m 3 is not the most<br />

<br />

<br />

<br />

<br />

<br />

A needs to supply 2 layers of insulation to achieve a U-value, whilst<br />

manufacturer B can supply a single board thickness to achieve the U-value.<br />

Here, only considering the £/m 3 price would completely l ignore the ad<br />

dditional<br />

<br />

installation costs of a 2-layer system.<br />

For example, if we look at 0.15W/m 2 K U-value, the most common current<br />

U-value requirement, an XPS with a design lambda of<br />

0.038W/mK wi ill need<br />

<br />

to be 250mm thick and cost circa £120/m 3 or £30/m 2 . An XPS insulation<br />

with a design lambda of<br />

0.028W/mK will look more expensive with a £150/<br />

m 3 price, but because it only needs to be 175mm thick the m 2 rate wo ould be<br />

£26.25m 2 . What’s more, the 0.028W/mK lambda insulation will be a single<br />

layer installation.<br />

Would a £3.75m 2 saving help you win a project?<br />

before buying insulation by the m 3 .<br />

If it would,<br />

thi nk twice<br />

Next month’s QI by QI: Non-combustible insulation in ro<br />

oofs and balconies<br />

Contact Baumit<br />

01622 710763<br />

https://baumit.co.uk<br />

@BaumitUKLtd<br />

JANUARY <strong>2021</strong> TC 51


Advertorial: ROCKWOOL<br />

TOP MARKS FOR SCHOOL’S NON-<br />

COMBUSTIBLE FLAT ROOF SOLUTION<br />

When fire takes hold in the roof, it<br />

becomes much more likely that a<br />

building will be lost completely or<br />

unusable for a long period of time – and with the<br />

role of the roof evolving, it is more important than<br />

ever that non-combustible insulation is used in<br />

flat roof build-ups. This is especially significant<br />

where public services such as education could be<br />

disrupted, which is why a non-combustible<br />

solution was specified for the new build Cobham<br />

Free School…<br />

The project<br />

Constructed on a former office building site<br />

covering approximately 2.58 hectares, the new<br />

Cobham Free School, Surrey, is being delivered as<br />

a phased programme that will realise a<br />

community vision for an all-through school from a<br />

single base by February <strong>2021</strong>.<br />

Construction has started on the addition of two<br />

adjoined new-build blocks which will expand the<br />

school’s facilities to include a 520-seater<br />

auditorium, sports hall, fitness/dance studio and<br />

changing facilities.<br />

With the two new school wings incorporating a<br />

flat roof construction, main contractor Willmott<br />

Dixon Construction appointed Southern Industrial<br />

Roofing to manage this specialist package.<br />

To meet the required performance for education<br />

buildings, Southern Industrial Roofing worked<br />

with ROCKWOOL to design a robust acoustic and<br />

non-combustible insulation specification.<br />

The challenge<br />

With a warm flat roof specified for Cobham Free<br />

School, Southern Industrial Roofing had to balance<br />

multiple design considerations, starting with BS<br />

6229: ‘Flat roofs with continuously supported<br />

flexible waterproof coverings’ and compliance with<br />

specific education sector building regulations.<br />

Simultaneously addressing<br />

these requirements was<br />

compounded by<br />

mechanical and<br />

electrical plant being<br />

housed on the flat<br />

roof, which<br />

demanded noncombustible<br />

zones to<br />

provide safe access for<br />

maintenance. Internal fire<br />

rated walls in the building below<br />

also required the flat roof to contribute to<br />

effective compartmentation.<br />

The solution<br />

Recognising that the flat roof construction at<br />

Cobham Free School presented a complex<br />

combination of performance criteria, Willmott Dixon<br />

Construction and Southern Industrial Roofing<br />

consulted ROCKWOOL for expert guidance.<br />

The flat roofs of the north and south wings span<br />

800m² and 630m² respectively, constructed of both<br />

solid and perforated zones. With an IKO Armourplan<br />

Single Ply Roofing System / Membrane specified,<br />

ROCKWOOL supported Southern Industrial Roofing<br />

in designing a suitable insulated flat roof build-up.<br />

Across the two new buildings, over 2000m² of<br />

ROCKWOOL HARDROCK Multi-Fix (DD) has been<br />

installed to provide all-in-one acoustic, thermal and<br />

fire performance. ROCKWOOL provided an ideal<br />

insulation solution with this build-up as it removed<br />

the need for an additional barrier mat to reduce rain<br />

noise transfer.<br />

To help reduce reverberation in the dining room and<br />

auditorium, a perforated metal deck was specified.<br />

ROCKWOOL Acoustic Infills were installed within the<br />

metal deck profiles to support in achieving the<br />

required reverberation times for these areas.<br />

Where the roof deck interfaced with<br />

the heads of internal<br />

compartmentation walls,<br />

ROCKWOOL Trapezoidal<br />

Fire Stops were<br />

installed.<br />

The result<br />

By using ROCKWOOL to<br />

insulate the warm flat roof,<br />

Southern Industrial Roofing has<br />

simplified overall design, achieved<br />

on-site efficiency gains and increased<br />

confidence in the performance of the system buildup.<br />

As non-combustible insulation, ROCKWOOL also<br />

removed any concerns about roof zoning for<br />

maintenance access to the rooftop plant.<br />

Andy Towns, Designer at Southern Industrial<br />

Roofing, explained: “Flat roof construction has<br />

become more complex in recent years, having to<br />

navigate what are sometimes conflicting design<br />

criteria. By providing access to test evidence with a<br />

metal deck in the early design phases, we knew we<br />

could move forward with confidence, using<br />

ROCKWOOL as a robust acoustic solution for flat<br />

roofs – without the need for an additional barrier<br />

mat.”<br />

Once on-site, Southern Industrial Roofing realised<br />

further benefits they were not expecting: “As<br />

compared with other insulation, we found<br />

ROCKWOOL to be a much simpler build-up which<br />

saved us time.<br />

“In the past, we’d avoided using ROCKWOOL as we<br />

thought it would be harder to handle on-site than<br />

other insulation materials – experience on this<br />

project has demonstrated that this is not the case.”<br />

Contact ROCKWOOL<br />

www.rockwool.co.uk<br />

@ROCKWOOLUK<br />

52 TC JANUARY <strong>2021</strong>


TAPERED BENEFITS CPD<br />

Gradient has created a CPD-style presentation insulation is its ability to reduce the risk of standing<br />

aimed at providing architects and roofing water on a roof by allowing appropriate channelling<br />

contractors with an understanding of the to drainage outlets. This decreases the potential for<br />

principles behind tapered roof insulation. leaks and negates the need for a structural fall<br />

which in-turn, helps minimise the roof’s overall<br />

The ‘Specifying Tapered Roof Insulation’<br />

cost and installation time.<br />

presentation includes an in-depth look at how<br />

tapered roof insulation works and why it is<br />

Paul Griffiths, Business Development Director at<br />

required, as well as highlighting the different Gradient, said: “This presentation was devised by<br />

systems currently available on the market. It also our technical team as an industry aid to give clear,<br />

considers some of the innovations that have practical guidance on tapered roof insulation<br />

elevated tapered roof insulation to new levels of specification. When correctly specified and<br />

performance. One of the main benefits of tapered installed as part of a roof’s waterproofing build-up,<br />

tapered roof insulation will ensure regulation<br />

thermal targets are met, thus addressing the<br />

industry-wide issue of properties falling short of<br />

as-designed performance.”<br />

To book a place at one of the online sessions, visit<br />

https://bit.ly/EventbriteGradient. The sessions<br />

will be held at 10am each Tuesday and Thursday<br />

from <strong>January</strong> 19th, to March 11th.<br />

IMA AND NBS COMBINE THEIR EXPERTISE<br />

The Insulation Manufacturers Association (IMA) has launched a new partnership with NBS, the leading specification<br />

platform for the construction industry, to assist with peer review and share high-quality technical information.<br />

The IMA says it is widely understood that insulation is the single most important aspect of energy efficiency in a building, and<br />

with almost half of the UK’s total carbon footprint generated from energy used in buildings, improvements to the built<br />

environment present a substantial opportunity to reduce emissions both quickly and effectively. Through the new platform, the<br />

IMA says NBS users will benefit enormously from a greater understanding of the different elements of a building’s fabric as<br />

well as the importance that the correct installation of high-quality thermal insulation will have in reducing the environmental<br />

impact of a building and reducing energy consumption.<br />

Above: Simon Storer, IMA.<br />

Simon Storer, Chief Executive of IMA, explained: “We have long advocated the need for a fabric first approach in order to meet the binding net zero 2050<br />

targets and being able to bring NBS users as much information as possible at specification point is crucial in making the right choices to meet or exceed<br />

the current regulations.” www.insulationmanufacturers.org.uk<br />

ACTIS CPD APPROVED FOR RIBA TRAINING<br />

Actis says its CPD on addressing the performance gap with reflective insulation has been approved to join the stable<br />

of Royal Institute of British Architects (RIBA) approved training modules.<br />

The CPD, which looks at how to combat thermal bridging and achieve optimal energy efficiency, will be available to RIBA chartered<br />

architects, who, along with their non-RIBA affiliated counterparts, must complete 35 hours of CPD every year. RIBA approved CPDs<br />

are worth double the points of a standard CPD and are therefore much prized by members, with 76% of them choosing training which has been specifically<br />

approved by the professional body. The Actis CPD, Addressing the performance gap with reflective insulation, which is currently available online, will be<br />

promoted via RIBA’s website, and the Institute’s monthly newsletter. Actis UK and Ireland Technical Director, Thomas Wiedmer, himself an architect, said:<br />

“We are looking forward immensely to being able to help the wider architectural profession to understand the benefits of reflective insulation in helping<br />

address issues of thermal bridging. The module looks at why the performance gap exists, evidence of its existence through research by bodies such as BBA<br />

and Glasgow Caledonian University, the effects of external factors on the fabric efficiency of a building, the impact of Part L which places a good deal of<br />

emphasis on air tightness and the impact of thermal bridging and how reflective insulation can address it.” www.insulation-actis.com<br />

JANUARY <strong>2021</strong> TC 53


Article<br />

Sustainability<br />

TURNING WASTE INTO WORKWEAR<br />

Peter Dumigan, Managing Director of the Hultafors Group UK, which owns Snickers<br />

Workwear, Hultafors Tools, EMMA, Solid Gear and Toe Guard safety footwear, as well as<br />

Hellberg Safety PPE, talks ‘Preferred Fibres’ and sustainable workwear...<br />

Just as the effects of plastic waste on the<br />

environment have been brought to the centre of<br />

consumer consciousness in recent years, so<br />

the problems caused by the disposal of clothing and<br />

shoes are coming to the fore.<br />

Images of ‘ragpickers’ on our waste clothing<br />

mountains in Africa are an increasing cause for<br />

concern as landfill sites in the UK become<br />

overwhelmed and we dispose of our waste on<br />

someone else’s doorstep. That’s why the sourcing<br />

of sustainable and environmentally responsible<br />

workwear and safety footwear is becoming a key<br />

part of our environmental consciousness.<br />

Fabric technology has always been a key driver in<br />

the design and development of Snickers Workwear<br />

garments. Fabrics that deliver comfort and<br />

functionality, flexibility and durability are key<br />

components of every single product in the range.<br />

Now, as consumers and corporates strive to reduce<br />

their impact on the planet,<br />

the Hultafors Group is<br />

implementing a policy of<br />

replacing conventional fabrics<br />

in its workwear products with<br />

sustainable fabrics –<br />

Preferred Fibres.<br />

Given the increasing levels of<br />

awareness about the impact<br />

of waste on our environment,<br />

this will surely have an impact on the clothes<br />

people choose for work in years to come. For<br />

Snickers Workwear, this product development and<br />

design philosophy is being applied to every new<br />

product in the Snickers Workwear collection with the<br />

additional assurance that the Snickers hallmarks of<br />

design, comfort, functionality and durability will not<br />

be compromised in any way.<br />

Snickers Workwear’s objective is to ensure that by<br />

2030, 70% of the fabrics used are Preferred Fibres<br />

– those with sustainable properties and a lower<br />

environmental footprint. As early as 2023, the<br />

company will be at 40% – a significant<br />

achievement by any measure. For those that<br />

haven’t come across the term, Preferred Fibres are<br />

those that have more sustainable properties<br />

compared to conventional man-made alternatives.<br />

Given that almost any fabric and garment can be<br />

developed with recycled polyester yarn, Snickers<br />

Workwear’s aim is to replace conventional fibres<br />

such as polyester with Preferred Fibres which have<br />

full manufacturing transparency, traceability and<br />

thus reduce our climate impact and prevent waste<br />

from going into landfill.<br />

The environmentally friendly fleece<br />

jackets for winter<br />

Man-made materials such as nylon and polyester<br />

fabrics can easily be recycled to create new,<br />

Preferred Fibres that have the<br />

same performance levels in<br />

comfort, flexibility and<br />

durability as the originals.<br />

Take Snickers Workwear’s<br />

new Fleece Jackets and Gilets<br />

for example.<br />

Snickers Workwear’s new<br />

Fleece Jackets for men and<br />

women are made from 100%<br />

recycled POLARTEC polyester which increases the<br />

breathability of the fabric and makes them very<br />

comfortable and warm.<br />

They’re lightweight with great insulation properties<br />

and, with designs for both men and women – and a<br />

fit that ensures mobility and flexibility on site –<br />

these soft and versatile garments are great for both<br />

work and leisure. Either as an everyday outer jacket<br />

Safety footwear that’s creating a<br />

positive footprint<br />

We’ve all seen how quickly clothing and footwear<br />

containers at waste disposal centres fill up, which<br />

is why we all have to ensure that footwear and<br />

garments are disposed of in an environmentally<br />

responsible way.<br />

EMMA Safety Footwear, the Hultafors Group’s<br />

latest brand addition to its market-leading PPE<br />

portfolio, has the solution to this problem. It’s a<br />

policy of ‘100% Circularity’ in all its products.<br />

Every shoe and boot in the EMMA range is made<br />

entirely from recycled or recyclable materials. It’s<br />

a 100% ‘circular’ manufacturing, usage and<br />

recycling process for every shoe and boot it<br />

produces. So check out the EMMA Safety Footwear<br />

range to make a positive footprint in your workday.<br />

www.emmasafetyfootwear.com<br />

in dry, cold weather, or as an insulating mid-layer<br />

on cold and wet workdays.<br />

Wearing sustainable garments such as these is an<br />

easy but very urgent step in developing your<br />

company’s and your own sustainability roadmap, so<br />

you will be able to make a conscious contribution to<br />

the environment and save valuable resources such<br />

as energy and water with your buying decisions.<br />

Contact Hultafors Group / Snickers Workwear<br />

www.hultaforsgroup.co.uk<br />

www.snickersworkwear.com<br />

54 TC JANUARY <strong>2021</strong>


Article<br />

Access to Tools<br />

HANDS-ON ASSISTANCE ON SITE<br />

Kevin Brannigan, Marketing Manager at Makita UK, discusses some of the handy tool belt<br />

and pouch solutions for roofers and trade professionals which he says offer convenient<br />

access when working at height.<br />

Utilising tool belts and pouches can help<br />

roofers and other trade professionals<br />

safely and securely transport tools to and<br />

from the van and around the work site with<br />

increased functionality and flexibility, as well as<br />

reduce the need to make countless and<br />

unnecessary trips up and down ladders.<br />

At Makita we offer a wide range of work belts and<br />

pouches, all inclusive of 3L Technology, a unique<br />

three-layer combination of polyesters and foam,<br />

to provide additional cushioning and improve user<br />

comfort.<br />

Roofer’s pouch<br />

Several of our pouches are designed with certain<br />

sectors in mind; for roofers specifically, the E-<br />

05153 Roofer’s Pouch has been designed to<br />

ensure users are able to keep important tools and<br />

accessories secure at all times, regardless of<br />

where they are.<br />

This pouch has two pockets for keeping<br />

nails and screws to hand, three<br />

leather tool holders for larger<br />

hand tools and three<br />

elasticated holders for<br />

screwdrivers or pencils. The<br />

main feature is the side gate<br />

hammer holder enabling you to<br />

secure a hammer in place quickly.<br />

Another option is the E-05228 3-Way Hammer<br />

and Tool Holder, which can be carried attached to<br />

a belt and also either front or pack pocket on<br />

workwear trousers. The unique design also allows<br />

the pouch to remain vertical wherever you are,<br />

enabling your tools to remain securely in place for<br />

when you need them.<br />

Consider adding the Zip Top Pouch (E-05206) to<br />

your tool belt. This sits on any Makita belt and<br />

can safely and<br />

conveniently hold two<br />

Makita batteries so<br />

that work doesn’t<br />

need to pause for<br />

recharging<br />

cordless tools,<br />

which is<br />

especially<br />

convenient when<br />

working at height. The<br />

zipped design keeps the<br />

batteries secure and prevents<br />

any on site dust damage and the extra<br />

pockets and sleeves are ideal for<br />

nails, parts, pencils and other<br />

essentials.<br />

Customised tool belts<br />

To get the most out of our<br />

pouch solutions, we recommend<br />

investing in one of our<br />

specially designed trade<br />

tool belts.<br />

The Ultimate Padded Belt with<br />

Belt and Loop (E-05321) is the<br />

perfect base to build a<br />

customised tool belt set. It is<br />

extremely robust with rivets for<br />

unbreakable strength, the belt includes<br />

D-rings for accessories and is compatible for use<br />

with supporting braces, for extra heavy loads<br />

when required. The belt is also padded for user<br />

comfort and durability. Users can customise belts<br />

further using Makita’s multi-purpose heavy-duty<br />

Belt Loops (E-05309) to hang anything with a<br />

carabiner.<br />

It’s now also possible to add specially-designed<br />

solutions for additional items that you want to<br />

Left: The E-05153 Roofer General<br />

Purpose Pouch; Below:<br />

E-05583_Ultimate<br />

Smartphone Holder;<br />

Below left:<br />

E-05321_Ultimate<br />

Padded Belt with Belt<br />

Loop, all from Makita<br />

UK.<br />

keep to hand,<br />

such as mobile<br />

phones. For this,<br />

our Ultimate<br />

Smartphone Holder (E-<br />

05583) is suitable to fit most<br />

modern devices. Featuring multiple<br />

lining layers of polyester, foam and<br />

soft air mesh material to<br />

withstand all conditions, the<br />

zipped pouch provides extra<br />

protection for your mobile<br />

phone on a building site,<br />

reducing the likelihood of<br />

damage.<br />

For further reassurance and increased product<br />

rigidity, all of Makita’s pouches feature Anti-Slip<br />

Technology, which is used on all friction points and<br />

pocket edges, to tightly grip tools, stopping them<br />

from sliding around and keeping them securely in<br />

place to help prevent accidental falls.<br />

The useful and long-lasting range provides a<br />

practical solution for roofers looking to foster onsite<br />

productivity gains and flexibility. What’s<br />

more, solutions provided in the collection are<br />

modular by nature, and can be added to over<br />

time, as demands change.<br />

Contact Makita UK<br />

www.makitauk.com<br />

@MakitaUK<br />

56 TC JANUARY <strong>2021</strong>


GREEN, BROWN & BLUE ROOF SYSTEMS, SOLAR PV, TESLA POWERWALL,<br />

ROOFLINE & ROOF SAFETY INSTALLERS<br />

We’re ICB Projects, a fully accredited and experienced<br />

installer for these systems.<br />

Contact us today for technical assistance or a quote.<br />

Discover more at icbprojects.co.uk<br />

01202 785200 info@icbprojects.co.uk www.icbprojects.co.uk<br />

UK Head Office Unit 9-11 Fleets Industrial Estate, Willis Way, Poole, Dorset BH15 3SU<br />

Green, Brown & Blue Roof Systems / Solar PV / Tesla Powerwall / Roofline/ Roof Safety Installers


Updates<br />

For further info on all these updates and more, visit www.total-contractor.co.uk<br />

VISIBLE BENEFITS WITH SNICKERS<br />

While fabric, functionality and fit are<br />

hallmarks of Snickers Workwear, the<br />

company says it’s the innovation and fabric<br />

technology in the design of its new<br />

FlexiWork Neon Fleece Hoodie, Jacket and<br />

Gilet that really set these new garments<br />

apart.<br />

Snickers says they’re great for working<br />

outdoors in the colder months, and delivering<br />

superior flexibility and comfort, these<br />

lightweight 4-way stretch garments come in a<br />

body-mapping design and are made from an<br />

Elastane/Polyester fabric with a water-and<br />

wind-repellent finish for comfort and durability<br />

when you need it most.<br />

As well as being street-smart and visibly<br />

striking with neon panels and reflective details<br />

for enhanced visibility, they’re designed for the<br />

fast-paced professional who’s always on the go<br />

and delivering top class work on site.<br />

For professionals who rely on their gear in<br />

demanding environments, they’re a must for<br />

those who want to be visibly ahead of the rest<br />

on site this winter.<br />

www.snickersworkwear.co.uk<br />

EXCELLENCE AS STANDARD WITH NORTON CLIPPER<br />

Norton Clipper has expanded its diamond blade offering with the addition of its latest performance tier.<br />

The new ‘Standard’ range is designed for light to medium-duty building, construction and maintenance tasks.<br />

Available in three main application sectors: •Standard Ceramic: Designed to cut ceramic, glazed ceramic,<br />

porcelain tiles and other similar materials for a quality cut; •Standard Universal: Suitable for universal<br />

building materials such as bricks, pavers and building blocks – also available in Universal Turbo for a more<br />

aggressive cut on harder materials (ideal for roof tiles); •Standard Beton: Covers tougher materials, such as<br />

concrete and reinforced concrete.<br />

To help contractors quickly and easily choose the correct tool for their projects, blade blotters have been enlarged<br />

to clearly display images of the correct material and application type, and packaging is colour coded in order to help<br />

identify which materials it can be used for, as follows: • Green (Standard Ceramic): Ceramics and porcelain;<br />

• Blue (Standard Universal): Building materials; • Red (Standard Beton): Concrete.<br />

Adrian Hough, Country Manager at Saint-Gobain Abrasives, commented: “Our new entry level Standard blades complement our existing family of quality<br />

product and performance tiers, namely: Classic, Pro and Extreme. Each tier provides users with the right amount of power and durability for each application –<br />

using the correct blade can guarantee users a smoother and faster cut, whilst extending product lifecycles to save money and time spent on replacements. We<br />

have developed this range alongside and with the feedback of contractors and builders to ensure that this is indeed a product designed with the user’s needs<br />

and requirements in mind.” www.nortonabrasives.com/<br />

STARLOCK KITS SHINE FOR FEIN USERS<br />

FEIN has released a range of new Starlock accessory kits that are compatible with its recently-launched MultiMaster 300, 500 and 700 series<br />

to the UK market.<br />

With the new Starlock accessories, the MultiMaster range offers 1,000 blade possibilities, including sawing, sanding, polishing,<br />

cutting, filing, scraping and cleaning, for a mix of environments from wood, metal, and heating, to flooring, tiles, grout<br />

and renovations. “We understand that productivity is one of the biggest priorities for our customers, which is why we’re<br />

excited to extend our popular accessories range even further. Thanks to the multitude of possibilities MultiMaster now<br />

Above: The new accessories are available now<br />

at FEIN stockists across the UK.<br />

offers, completing a job quickly and proficiently has never been easier. fein.com/en_uk/<br />

58 TC JANUARY <strong>2021</strong>


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The new platform for digital content from the key players in<br />

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