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 />
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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 />
More products from the team<br />
to bring you the multi-award<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>
Handrails:- EasyGuard<br />
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*CurveyGuard – an aesthetically pleasing curved rail.<br />
*EasyGuard – raked or straight legs dependant on<br />
application. *FoldGuard – folding handrail.<br />
Trip hazard reduction – long thin base-plates with<br />
Counterweights used on un-secured ends only. Placed at 2m<br />
centres maximum to enable use for leading edge protection.<br />
Galvanised or powder coated finish. Protective mats 5mm<br />
bonded to the base plates.<br />
Standards – Exceeds Class A EN13374- Class A; For<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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JANUARY <strong>2021</strong> TC 17
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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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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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>
ROOF<br />
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The new platform for digital content from the key players in<br />
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CERTIFIED NON-COMBUSTIBLE<br />
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a<br />
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www.quantuminsulation.com