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MAY 2021

The self-adhering externa al

airtight & vapour permeab ble

membrane

>>> • ROOFCERT UPDATE • EAVES DETAIL ISSUES • SOLAR SURGE • SHINGLES • >>>


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Editor’s Comment

MATT DOWNS

EDITORIAL DIRECTOR

MATTDOWNS@MEDIA-NOW.CO.UK

07963 330774

The self-adhering externa al

airtight & vapour permeab ble

membrane

Whilst the events of the past year or so have had an impact on all areas

of life, training and teaching have been hit particularly hard.

As expected, this has had an impact on the roofing sector’s flagship

accreditation scheme RoofCERT, which was building up a head of steam prior

to the first lockdown. But as NFRC CEO James Talman points out in his column

on page 18, progress has still been made over the last year despite “three

lockdowns, CITB spending cuts and roofing contractors being exceptionally

busy.” As James explains, “through adaptation and innovation” over 100

roofing operatives have still been accredited with “700 more in the pipeline.”

Looking forward it’s going to be a busy time for RoofCERT as training and

assessment restrictions lift, and as James says the important work of creating

relationships with housebuilders – which will increase the exposure of utilising

RoofCERT accredited roofers to the wider industry – will take centre stage,

alongside opening up the Experienced Worker Route to accreditation which will

help push towards the target of 2,000 accredited roofers.

Elsewhere in this issue, in his regular column John Mercer tackles eaves

details (page 20); Marley’s Stuart Nicholson says don’t get left behind on the

solar surge (page 22); the team at Quantum Insulation talk BBA Information

Bulletin No. 4 (page 59); and Rob Firmin discusses water flow reducing layers

on page 60. So read on for all this and much more!

Front cover courtesy of A. Proctor Group. The team discuss issues

around moisture management when utilising CLT construction on page 48.

FOLLOW US @TOTCONTRACTORUK

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publication may be reproduced or stored in a retrieval system without the written consent of the publishers. All rights reserved.

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Contents

3 KEY FEATURES

22

22 FUTURE ROOFS: PV

Marley’s Stuart Nicholson says with the changes

to Part L next year, many new build roofs will

include solar PV as standard, so roofers need to

make sure they don’t miss out...

30 HIT SHINGLES!

SR Timber’s Shaun Revill believes that the

combination of lockdown and the focus on

sustainability means there’s never been a

better time to add shingles to your offering

34 MATERIAL CHOICES

SIG Design & Technology’s Paul Jacobs says

designing and installing roofing using multiple

materials is a great business opportunity, but it

can be a risky challenge for the roofer

30

FURTHER READING

Pic credit: Featherstone Homes

24 TRAINING DAYS

We talk to Roof Slate Lecturer Steve Dowell of South

Devon College in our CUPA PIZARRAS college focus

32 ROOFLIGHTING REVOLUTIONS

Total Contractor takes a look behind the scenes at NARM to

hear about the challenges its tackling in rooflighting

40 EPDM & MODULAR BUILDING

Adrian Buttress explains why he believes EPDM can

play its part in ‘circular construction’

50 CLADMASTER PART 2

Vivalda’s Andy Thomas address the common mistakes

made when ordering fixings for cladding projects

34

56 PIR / FLAT ROOF FOCUS

Nigel Blacklock of Bauder and the IMA explains why PIR

is a great fit for flat roofing applications

60 ALL YOU NEED TO KNOW ABOUT:

Rob Firman talks water flow reducing layers in the first

of a new series of articles from Polyfoam XPS

4 TC MAY 2021


REGULARS

18 NFRC ROOFING FOCUS

James Talman provides an update on RoofCERT

which, despite the challenges of last year, is

still making progress and is set push on

further with new initiatives

20 PERFECTLY PITCHED

In his latest consultant case study, John

Mercer discusses a clay plain tile roof project

he was called to which was suffering water

ingress through the fascia and bargeboards

59 QI BY QI COLUMN

In the latest instalment of their regular

column, the experts at Quantum Insulation

focus on what’s changed in BBA Information

Bulletin No. 4

SECTIONS:

TOTAL

ROOFING

20

TOTAL

CLADDING

48

INDUSTRY NEWS

06 PUSH THE BUTTON...

The NFRC has launched a new app which puts all the

latest Health & Safety updates in roofers’ hands

08 MAKE AN INFORMED DECISION

The LRWA says its new Product Register will help users

make an informed choice when it comes to liquid systems

TOTAL

INSULATION

56

VEHICLES, TOOLS

& WORKWEAR

10

68

MAY 2021 TC 5


Industry News

More news, updates and interviews at www.total-contractor.co.uk

IOR URGES ACTION

FOR SITE VISITORS

The Institute of Roofing (IOR) is urging site

visitors to apply for a Professionally

Qualified Person (PQP) CSCS card to

address concerns raised by manufacturers

about access to construction sites.

The problems follow the withdrawal of the

CSCS visitor card which stopped being issued

at the end of February 2020. Existing visitor

cards remain valid until their listed expiry date.

Recent reports from manufacturers have

highlighted that without this card, members of

their inspection teams are struggling to get

onto site to carry out their role for projects.

The IOR has investigated the issue and found

that the PQP card is the most appropriate

alternative. Valid for five years, a PQP card

certifies that the holder is a qualified member

of an approved professional body, and has the

skills and knowledge required to work on a

construction site without special supervision,

even if they are not typically based on site.

The IOR is an approved body, so all its

members can apply for a PQP card, which can

be done via the CSCS website. Applicants will

need to supply proof of membership. Stuart

Hicks, CEO of the IOR, said: “Our membership

can be used as proof of qualification, or

working towards a qualification, which is the

criteria needed to apply for a PQP card. Gaining

this card will overcome the issues that visiting

staff from manufacturers and other disciplines

have experienced in gaining access to

construction sites to carry out their work. If any

of our members have colleagues that would

benefit from this route to a PQP card, they will

need to apply for an IOR membership via our

website and achieve a grade of Associate,

Member or Fellow. This will depend on meeting

certain qualification criteria which can be

viewed on our website.”

www.instituteof roofing.org

HEALTH & SAFETY AT THE TOUCH OF A BUTTON

NFRC has launched a brand-new app focused Commenting on the launch of the app, Bob

on health and safety for NFRC members and Richardson, NFRC Head of Technical and Training,

their operatives. The app fully digitalises the said: “This app provides an important day-to-day

popular ‘Health & Safety Passport’, which reminder for operatives – even when there is no

previously had been a printed booklet that phone signal – on the safe working practices that

operatives could carry with them on site. This must be considered an essential part of all site

will mean operatives will now have access to working. It contains a wealth of information, from

all the health and safety information they need working at height to fire safety to Covid-safe

from their smartphone.

guidelines, complementing site-specific health

and safety documentation.

As part of the launch, the Passport’s content has

been fully updated to include recent changes in He added: “The Covid-19 pandemic has

legislation and guidance, and new sections giving demonstrated the importance of being agile and

advice and information on mental health and getting critical information and updates out to the

Covid-19. NFRC says the app is future-proofed to industry quickly. Through this innovative new app,

allow the team to remotely update information as we will be able to update the Health & Safety

and when it is required, so operatives always Passport in real-time, rather than reprinting and

have the latest information

distributing thousands of booklets every time

when they open the app.

health and safety legislation changes.

Contractors can therefore be assured that

As a Member Benefit, the

the information their operatives have is

app will only be

the most up-to-date.”

available for NFRC

Members and their

He concluded: “We hope that this is

operatives, and any

just the beginning and if the app

roofing operatives who

proves popular, we will be able to

have not received their

expand the content to include other

log-in details are

NFRC technical guidance and in

encouraged to contact the

time other areas of NFRC

NFRC Helpdesk.

activity.”

ONDULINE IS NOW PART OF ONDURA GROUP

Onduline, the lightweight roofing

and professional customers.

specialist, has announced it is now

The Group brings together three

part of the newly-created Ondura

leading companies under one roof:

Group, an international business

Onduline, for lightweight roofing

dedicated to waterproofing

solutions and pitched roofs, alwitra,

solutions for buildings.

high quality waterproofing systems for flat

The Group has been formed by Naxicap Partners roofs, and CB, façade and roof membranes for

following the acquisition of the Polish company CB pitched roofs.

in 2019, and of Germany-based alwitra.

Paul Duffy (pic), MD for Onduline in the UK, said:

Ondura says it provides a unique solution for “As part of Ondura Group we can offer an even

waterproofing roofs and buildings for both private wider portfolio of solutions to our customers.”

6 TC MAY 2021


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Industry News

More news, updates and interviews at www.total-contractor.co.uk

NEW AJW CATALOGUE

DELIVERS SO MUCH

AJW Distribution has launched a

comprehensive new catalogue which not

only showcases its range of roofing and

cladding solutions, but also provides its

customers with an extensive range of

product information.

The company wanted to make the buying

process easier for its customers when

deciding which product to use for each

project; for example, ensuring they purchase

the right tile for the low-pitched extension they

are working on.

AJW says the new catalogue also gives

customers a guide which they can showcase

to their client so they are aware of what tiles

they can choose for their project.

A spokesperson for AJW explained: “The

Marketing team have done an outstanding job

working on this catalogue through the Covid

Pandemic. We are extremely proud of what we

have achieved and what we will be presenting

to our customers. We have received great

support from our suppliers and showcase a

number via adverts and case studies throughout

the catalogue.”

Marketing Assistant, Cintia Woods,

commented: “For me, it has been a pleasure

to be able to create these exceptional 400

pages filled with key information on the

products and eye-catching adverts, all

delivered with a fresh and clean design. I hope

you will like it as much as we do at AJW.”

For more information, please visit

www.ajwdistribution.com

LIQUIDS: MAKE AN INFORMED DECISION

The Liquid Roofing and

The LRWA says every product in

Waterproofing Association

the Register is listed with key

(LRWA) has launched a free,

features and a link to further

online tool that enables users to

information such as approved

quickly assess the suitability of

applications, evidence of

liquid roofing systems.

durability, and properties in

relation to fire. There is also a function that allows

Aimed at contractors, specifiers, and distributors,

different liquid systems to be compared.

the LRWA says the Product Register compiles

information from third-party certifications, Sarah Spink, CEO of the LRWA, said: “Selecting an

including agrément and European Technical inappropriate product can result in a project failing,

Approval (ETA) certificates, into an easy-to-read so verifying the performance of a liquid is essential.

format, and it allows the user to search for a The data in agrément and ETA certificates will

preferred manufacturer via a drop-down list or a confirm whether the system will meet specified

product name if known.

requirements, but this information can be difficult to

understand and one of our biggest concerns is that

Alternatively, if the user is unsure about which liquid

people don’t read it properly. This can lead to

roofing system to use, they can carry out a search

inaccurate assumptions or a reliance on

using six filters, which will create a random list of

manufacturers’ product claims, some of which can

potential products.

be misleading. The Product Register has been

The filters include the material, for example, designed to overcome these issues. It brings verified

polyurethane; the type of roof that needs

product data into one place, which is easy to search

waterproofing such as inverted, pitched or a terrace; and navigate, enabling anyone seeking to install or

the level of foot traffic; the required lifespan of the specify a liquid waterproofing solution to make an

roof area; what type of substrate will be coated; and informed decision.”

whether it is a new build or refurbishment project. https://product-register.lrwa.org.uk

GRO’S MEMBERSHIP CONTINUES TO GROW

GRO, the Green Roof

with Queen’s University in

Organisation, has seen a big

Belfast with regards to their

influx of new members this

plans to improve biodiversity on

year, including the likes of

the campus.

Proteus Waterproofing,

In the Republic of Ireland, Noel

Mobilane UK, the Green

also explained he has his first private biodiverse

Infrastructure Consultancy, HUBBUB and Greater

green roof installation approved, is working with

Manchester Combined Authority, and the most

Trinity College in Dublin and has recently been in

recent addition is Sweeney Landscape Design.

discussions with Guinness regarding greening

As a leading Green Infrastructure contractor their Enterprise Centre. Noel says his long-term

based in Belfast and operating in both Northern ambition is to establish an Irish Green

Ireland and the Republic of Ireland, Sweeney Infrastructure Association modelled on GRO to

Landscape Design Managing Director Noel represent both the North and South of Ireland.

Sweeney explained in his application that he

currently has his first private biodiverse green Find more green roof and associated news and

roof installation approved and is in discussion content over at www.greenscapemag.co.uk

8 TC MAY 2021


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Industry News

More news, updates and interviews at www.total-contractor.co.uk

NORTH EAST ‘GET READY FOR ROOFING’ PROGRAMME LAUNCHED

Two North East roofing contractors have joined

forces with Redcar and Cleveland College to help

tackle the industry skills gaps and kick-start

high quality, long-term career opportunities.

Working in conjunction with the college, Stocktonbased

Barclay Roofing and Redcar’s AAA Roofing

have developed an intensive six-week course that

aims to give people who are currently unemployed

the opportunity to test their suitability for a career

in the trade.

Funded by the Tees Valley Mayor and Combined

Authority, those that complete the ‘Get Ready for

Roofing’ programme will receive a guaranteed

interview for a six-month kickstart paid work

placement, and the chance of future employment.

Esme Flounders, Business Development Director at

Barclay Roofing, said: “Here at Barclay Roofing we

are finding it more and more difficult to attract

skilled workers into our business. We know this is an

industry-wide issue, but it is particularly pertinent

across the Tees Valley because of a historic lack of

dedicated training resources in this area. Although

we are fortunate to have very low staff turnover,

with many of our skilled tradespeople being of

long service, as one of the larger roofing

contractors in the region, we feel a responsibility

to our industry to change this and secure the longterm

future of our trade.”

By working directly with employers, the new course

has been created to test aptitude for a career in

the technically demanding roofing industry and

includes everything a candidate will need to safely

work on site and begin longer term accredited

training. Offering an introduction to construction

skills, working at heights, health and safety,

asbestos and abrasive wheels awareness, the

course also covers personal development,

interview skills and the CSCS Test and Green Card.

With the potential to move into employment

following the work placement, Esme added that

Esme Flounders, Business Development Director at Barclay

Roofing and Ben Blackburn, Managing Director of AAA Roofing.

the course is a huge step forward for construction

skills in the Tees Valley, as those who wish to

follow an apprenticeship in a roofing discipline

must currently travel to Newcastle or Leeds.

There are 16 work placements available between

the two employers. Whilst needing a good head for

heights, potential recruits must be aged 18 to 24,

claiming Universal credit and be referred to the

programme by their JCP Work Coach. Candidates

and employers who are interested in learning

more can contact the team on 01642 865561 or

email employability@stockton.ac.uk

RUSSELL SUPPLIES MOD PROJECT IN SOUTH

Russell Roof Tiles has been selected for its to bring all units back from Germany. This

first Ministry of Defence (MOD) re-roofing programme includes funding for accommodation

project in Oxfordshire – the latest in a long improvements and will provide about 1,500 new

line of MOD contracts.

homes for Service families, 4,500 new single living

accommodation bed spaces and working, technical

The manufacturer says it created a specific delivery

and training infrastructure.

schedule to hit extremely tight deadlines supplied

by the main contractor, leading infrastructure firm Russell Roof Tiles says it was able to provide the

Amey. With an estimated completion date of necessary advice to ensure that the tiles and

Autumn 2021, the development is part of the Army accessories ensured consistency and longevity for

Basing Programme (ABP) in Shrivenham,

MOD while minimising future lifetime costs of the

Oxfordshire.

roof once installed.

The Army Basing Programme (ABP) is a £1.8 billion For the Oxfordshire project Russell Roof Tiles is

capital infrastructure programme, delivering Service supplying tiles from its Commercial Range –

Family Accommodation homes for Service personnel Highland in Cottage Red. The Highland tile is a

and their families, as well as refurbishing key traditional flat roof tile with a mock joint which is

infrastructure. It is providing the facilities to enable laid broken bonded. The manufacturer says the

nearly 100 Army units to relocate, reconfigure, Russell Commercial Range tiles are traditional sized

disband or re-role and deliver the Government’s interlocking tiles in a variety of profiles which

Strategic Defence and Security Review commitment provide a cost-effective roofing solution.

SOLAR SHOWS UP!

175 MW of photovoltaic (PV) solar capacity

was installed across the UK from January –

March 2021, new figures released by Solar

Energy UK and Solar Media show.

This significant growth over the winter period

brings the UK’s total installed PV capacity to

more than 14 GW, generating enough

electricity to power over 3 million homes.

Ground-mounted solar parks form 70% of

the new capacity, while post-subsidy rooftop

markets also continue to thrive. Rooftop solar

capacity has seen 14% year-on-year growth.

Subsidy-free solar PV in the UK now exceeds

1 GW, or 7.3% of total installed capacity. On

a rolling basis, 660 MW of new capacity was

installed in the 12-month period to 31 March

2021, and the UK could be on track to deliver

a gigawatt of new solar capacity this year.

10 TC MAY 2021


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Trip hazard reduction – long thin base-plates with

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centres maximum to enable use for leading edge protection.

Galvanised or powder coated finish. Protective mats 5mm

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Standards – Exceeds Class A EN13374- Class A; For

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Ladders:- Easy Fit

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All typical ladders bespoke – email

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Easy Fit, all ladder components are Easy

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Rest Platforms and ladders with special

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Industry News

More news, updates and interviews at www.total-contractor.co.uk

BOND IT EXPANDS AND RESTRUCTURES

Bond It, one of the UK’s fastest growing

manufacturers of sealants, adhesives and

building chemicals, has announced it is about

to undergo a huge change as we enter quarter

2 of 2021.

On the back of its recent acquisition of the Rescue

Tape brand of self-fusing Silicone Tape,

manufactured in North Carolina and distributed

through warehouses in North Carolina and Los

Angeles, the company has now successfully

launched the Bond It brand into the North

American market.

As a result, David Moore, one of the company’s

founding partners, will take on the role of CEO of

Bond It Group and will split his time equally

between the UK and the USA to oversee the

smooth integration and distribution of Bond It

products into the States.

To help him in this role, Bond It has announced

the appointment of Dean Morgan as Managing

Director of the UK operation. Dean will bring with

him a wealth of experience of manufacturing, as

well as already having a long established

relationship with Bond It.

David Moore explained: “Dean was instrumental

in guiding Bond It through the implementation of

ISO 9001, 140001 and the recent 450001

FOUR IOR HONORARY FELLOWS ANNOUNCED

The Institute of Roofing (IOR) has named four

honorary fellows in recognition of their longstanding

service and outstanding contribution

to the roofing industry.

The honorary fellowships have been awarded

worldwide to Detlef Stauch, Peter Plum, Reid

Ribble and Dr Bill Chan.

Graeme Millar, board director at the IOR, said: “All

four honorary fellows have made massive

contributions to the roofing industry and are still

Global expansion and restructuring of Bond It: Dean Morgan,

left, has been appointed Managing Director, Bond It UK, with

David Moore, right, becoming CEO of Bond It Group.

systems and has worked with us for 12 years as a

consultant.

“I believe Dean is the right person to guide Bond It

to its next level of evolution.”

Dean has gained over 40 years of experience in

various manufacturing companies and has indepth

knowledge of trouble shooting, product

development, management systems and driving

improved financial performance.

The company says he will be a major asset in his

new role and will direct the company looking to

streamline the processes already existing as part

of its ISO Management System, looking to improve

efficiency, productivity and quality of the

reputable Bond It brands.

www.bonditgroup.com

doing so. Their dedication is truly exceptional, and

this has had a positive impact both in the UK and

right across the world.”

Stuart Hicks, CEO of the IOR, added: “It is

fantastic to see honorary fellowships being

awarded across four different continents and to

people who have demonstrated some of the

strongest and most impressive skills across our

industry. Their valued contributions have helped

to shape standards and enhance professionalism

in the UK and internationally.”

CUPA COMMITS TO

COLLEGE STUDENTS

Spanish slate manufacturer CUPA PIZARRAS

has announced it is continuing its college

sponsorship scheme for a third year and

extending it to include an additional college.

The annual program includes CPD

presentations, free of charge slate pallets and a

trip to CUPA PIZARRAS’ quarries in Spain, when

COVID-19 allows.

Recommended to CUPA PIZARRAS by the

National Federation of Roofing Contractors

(NFRC), the colleges were chosen for the

outstanding achievements of their students.

Currently on the sponsorship scheme are South

Devon College, Leeds College of Building,

Newcastle College, Edinburgh College, Dundee

and Angus College and finally Bolton College,

which was a new addition this academic year.

CUPA PIZARRAS says a core part of the

sponsorship includes the presentation of its

RIBA-approved CPD, The Definitive Natural

Slate, to the colleges. This CPD covers

everything a construction professional needs to

know about natural slate, from production

process to installation.

“Despite many of the colleges having to switch

to online learning over the past year, restricting

the students’ hands-on learning, all the

students have been able to benefit from the

online CPD seminars, YouTube training videos

and technical guides that we were still able to

provide,” commented Julian Gomez, Director of

Marketing at CUPA PIZARRAS.

12 TC MAY 2021


Innovation

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ALUMINIUM SYSTEMS


Industry News

ROOFING MOVES &

APPOINTMENTS

• NARM, the National

Association of Rooflight

Manufacturers, has

appointed Tom Ogilvie as

Chairman. He takes over the

role from Jim Lowther, who has

announced his retirement following many

years of service to NARM and the broader

rooflight industry.

• SPRA has announced that

Anthony Hogan has joined its

team as a Technical Expert.

Anthony commented: “I am

delighted to be joining SPRA as

it is such a highly respected organisation,

and I look forward to working with Ronan

and the rest of the SPRA team.”

• Kemper System has

appointed Peter Barber as

Technical Sales Manager.

With more than 30 years’

experience of the building

materials and flat roofing industry, Peter

will be responsible for building client

relationships across the south of England.

Working with specifiers and contractors,

he will focus on developing opportunities

for specification both in the new build and

refurbishment sectors.

• Nicola Trainor has joined

Russell Roof Tiles as

Logistics Manager at its

Burton HQ. She joins the

manufacturer with over a

decade’s worth of experience in the

transport sector. As Logistics Manager,

Nicola’s primary focus is to plan and

manage the dedicated transport team and

hauliers, despatching goods from its three

plants to construction sites across the UK.

MARLEY TAKES BIGGER STEP INTO SOLAR

Marley has acquired Viridian Solar.

The acquisition builds upon a commercial

partnership between the two companies

announced in 2020, that saw Viridian Solar’s

BIPV added to Marley’s extensive range of roofing

products to complete a comprehensive roof

system offer for the UK building industry.

Established in 2003, Viridian Solar has gone on to

build a strong reputation as an innovative

“Our ambitious growth plans will now be

manufacturer of high-quality, roof-integrated

supported by the resources and reputation of

solar PV systems, supplying all the major UK

being part of one of the biggest and most

housebuilders.

respected names in the roofing sector, with the

The deal will see Viridian continue to operate as a backing of Inflexion Private Equity Partners, who

standalone entity, retaining its existing

manage assets of £5.4bn globally.”

management team and continuing to support its

David Speakman, CEO of Marley, added: “The

customers directly.

acquisition brings together two complementary

Stuart Elmes, CEO of Viridian Solar, commented: companies, both of which are influential players,

“The last eighteen years have just flown by and, with highly regarded reputations in the

whilst we are proud of what we have achieved as construction market. Viridian’s strong relationship

a team, our eyes remain firmly on the future. We with housing developers and solar distributors is

are looking forward to working with our new complemented by Marley’s commercial reach into

colleagues at Marley to open an exciting new social housing and among roofing installers.”

chapter in the development of Viridian Solar. More from Marley on page 22

SIG UK ACQUIRES F30 BUILDING PRODUCTS

SIG UK has announced that Bristol-based The SIG UK Leadership Team will work closely

construction product supplier F30 Building with staff at F30, investing in its people and

Products has joined the SIG group.

systems to create a strong framework for the

future and to further strengthen the business’s

F30 Building Products is a national supplier with

first-rate service to customers by growing its

a broad range of specialist products. Established

already extensive product range.

in 2012, the company says it prides itself on its

staff’s technical expertise, the non-biased advice Rob Pearce, Managing Director at F30 and

and high levels of customer service they provide, Divisional Director of SIG Construction

along with its comprehensive stock range and Accessories South, said: “This move is in line

commitment to next-day delivery.

with continuing efforts by SIG to strengthen its

local service and increase its offering to

SIG UK says F30 Building Products, which

customers nationwide. I look forward to working

operates from branches in Bristol and Plymouth,

with my new colleagues and expanding our

will continue to trade under its current name and

capabilities for the benefit of customers in the

branding but with the full support of SIG

South West and throughout the UK.”

Distribution’s local network.

14 TC MAY 2021


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Roof Tube: Video Content

PRESS PLAY ON QUALITY CONTENT

FOR YOUR SECTOR...

Roof Tube is the new platform for digital content from the leading players in your sector.

Easily accessible on any device, Roof Tube is packed full and constantly updated with

practical, informative and entertaining video content, including how-to’s; project and

product focuses; installation advice; training and webinars; plus interviews and opinions

from those operating throughout the roofing, cladding and associated sectors.

In the second instalment

of Vivalda Group’s CladMaster

series, Vivalda London Branch

Manager Andy Thomas outlines

three things you need to get

right when ordering fixings.

With this year’s LRWA Virtual

Dragon Team Challenge under way,

follow the progress on social media

and take a look back at last year’s

event over on Roof Tube

E

TUBE

PRACTICAL VIDEOS

INSTALLATION ADVICE

STEP BY STEP GUIDANCE

THE ONLINE

COMMUNITY FOR

ROOFING AND

CLADDING

INDUSTRY

16 T C MAY 2021 ESSENTIAL READING FOR ROOFING, CLADDING & INSULATION CONTRACTORS


Technical Roofing

Consultant John Mercer

provides practical advice

and guidance on how

to reduce the risk of

efflorescence forming on

concrete roof tiles

The experts at

Made for Trade have

produced a short video

to show just how easy

the Korniche Lantern is

to install! You really could

be ‘fitting in minutes –

glazing in seconds… and

having a brew before you

know it!’

So head over to www.roof-tube.co.uk to view all these videos and so much more, or

if you’d like to make the most of your digital content, contact Andy or Jake on

01892 732 047 to put your company and products in front of your potential customers!

FIND US AT WWW.ROOF-TUBE.CO.UK

ESSENTIAL READING FOR ROOFING, CLADDING & INSULATION CONTRACTORS

MAY 2021 T C 17


NFRC Roofing Focus

FUTURE PLANS FOR ROOFCERT AS

MOMENTUM CONTINUES TO BUILD...

In his latest column, James Talman, NFRC CEO, gives an update on RoofCERT which,

despite lockdowns and other challenges, is making good progress but still needs further

sector support reach its goals.

Despite three lockdowns, CITB spending

cuts, and roofing contractors being

exceptionally busy, RoofCERT, through

adaptation and innovation, has still been able to

accredit over 100 roofing operatives over the last

year, with 700 more in the pipeline.

As training and assessment restrictions start to

lift, the programme can now support those in the

pipeline to achieve their full accreditation. We are

also able to proceed with a several exciting

initiatives which have been delayed due to

lockdown.

Partnership with housebuilders

One of the key focus areas for RoofCERT this year

will be the home building industry. We are

pleased to have the support of the Home Building

Federation (HBF)’s Home Building Skills

Partnership and are currently working

collaboratively with several large housebuilders,

one example being Redrow Homes.

The quality of new build homes is in the spotlight

currently and this is reflected in the strategic

aims of virtually all of the top ten housebuilders

as set out in their

Annual Reports.

RoofCERT is designed to

help housebuilders

improve quality and

productivity, as well as

help them to identify

any skills and

knowledge gaps. This in

turn will lead to the

development of learning

and training content as

part of the Continuous

Professional Development of

operatives.

“We are one of

the few sectors in

construction that have

created an initiative

like this, and we should

be proud of that”

Experienced Worker Route (EWR) moves

one step closer

There are two main routes to RoofCERT

accreditation for operatives, qualified roofers –

those who hold a vocational qualification – and

experienced roofers with more than five years of

experience through the Experienced Worker Route

(EWR).

Due to the impact of Covid-19, we have not yet

been able to launch EWR so have had to rely

solely on roofers with a vocational qualification.

However, as lockdown has started to ease, we are

now scheduling 100

EWR assessments as

part of a pilot

programme with the

CITB. This will provide

essential feedback for

the roll out of EWR for

those thousands of

experienced roofers who

don’t have a vocational

qualification and whose

CSCS card will need

renewing by 2024. All

Left: James Talman, NFRC.

“One of the key

focus areas for

RoofCERT this

year will be the

home building

industry”

CSCS cards renewed through the Experienced

Worker Route will clearly recognise the RoofCERT

on the card with full details of the individuals

skills on the card’s microchip. We will be

publicising more details on this shortly.

We need your support

So whilst we are progressing in several areas, we

cannot do this alone.

We are one of the few sectors in construction that

have created an initiative like this, and we should

be proud of that. Our initial ambition is to achieve

2,000 accredited roofers which will provide a

platform to develop a sustainable model for

industry to run itself. To achieve this we really

need your support.

If you are a contractor, sign your operatives up; if

you are an operative, start the RoofCERT journey

by booking a knowledge test; if you are a training

provider or part of a training group, could you help

us facilitate health and safety training and

knowledge tests? If you are able to help in any

other way, let us know.

Find out more about RoofCERT / NFRC

https://roofcert.co.uk/

www.nfrc.co.uk

18 TC MAY 2021


Perfectly Pitched

CONSULTANT CASE STUDY:

EAVES DETAILING IN FOCUS

Technical Roofing Consultant John Mercer teamed up with roofing expert Chris Thomas

for a survey of a traditional handmade clay plain tile roof, which had suffered from water

ingress through the fascia and bargeboards. As John explains, as is often the case, the

issue was with the detailing at the eaves and subsequent troughing in the underlay…

Irecently inspected a traditional handmade

clay plain tile roof where water has been

running through the fascia and bargeboards,

causing damage to the timberwork.

I was accompanied during the inspection by Chris

Thomas, whom I persuaded to come out of

retirement temporarily to assist me. Chris has a

vast wealth of knowledge on roofing, and he wrote

an article many years ago on eaves detailing, so it

was great to have him along.

One of the most common problems I

come across when carrying out

roof surveys is the detailing at

eaves, and in particular the

lack of support for the

underlay behind the fascia

board or eaves tilt fillet. This

causes a trough in the underlay

directly behind the fascia, which can

trap and collect water.

“It is important that the underlay be laid to

ensure that any water in the batten cavity can be

drained safely into the gutters”

Left: John Mercer, Technical Roofing Consultant.

The water invariably leaks

through the underlay as it

finds its way through any cuts

and nail holes.

The importance of the

underlay’s function as a watertight

layer is often overlooked. The underlay

is the last line of defence if water is driven

through the tiling in extreme weather conditions,

and with the use of vapour and air permeable

membranes there is the likelihood of

condensation forming within the batten cavity.

Therefore, it is important that the underlay be laid

to ensure that any water in the batten cavity can

be drained safely into the gutters.

Manufacturer’s details always show the underlay

fully supported at eaves, whether it be by a

plywood board or proprietary plastic underlay

support tray, though it is surprising how often

these are omitted.

Above: Roofing expert Chris Thomas, who accompanied John on this survey, checks the roof pitch at the eaves.

It is not good practice to continue the general

underlay into the gutter as it will degrade through

exposure to sunlight, therefore the common

solution is to install proprietary plastic eaves

support trays which not only support the underlay

behind the fascia at the correct fall, but they also

extend into the gutter and are UV-stable. The

alternative solution is to fit a timber support and

lay a minimum 300mm wide strip of 5U

bituminous underlay at eaves, which being

resistant to UV degradation can extend into the

gutter.

20 TC MAY 2021


Above left: Diagram shows air path through eaves ventilator. Right: Wrongly installed underlay with sag behind fascia.

The rafter pitch on the roof surveyed is 45

degrees, therefore it should be quite simple to

provide a support for the underlay at the eaves.

Unfortunately, the fascias are set too high,

resulting in a ‘bellcast’ eaves detail. This does

not contravene BS 5534 recommendations for

double lapped plain tiles, provided that the tiles in

the bellcast section of the roof are still set above

their minimum recommended roof pitch, which in

this case they are. But it does make correctly

detailing the eaves support and underlay more

difficult. A fall in the underlay must be

maintained behind the fascia; if this is not

possible, it would be necessary to lower the

fascias. The eaves detail was further complicated

because there are over fascia ventilators

installed, therefore an air path from the

ventilators to the roof space must be maintained.

The distance between the top of the fascia and

fascia ventilator to the first course under-eaves

tiling batten was too short to fit standard plastic

underlay support trays without having to cut each

tray. Therefore, the solution found was to install

specially cut softwood timbers to support the

underlay to the correct fall towards the gutter,

shaped to maintain the air path from the eaves.

The diagram above left shows the detail.

When constructing a roof, the fascias or tilt fillets

should ideally be set to support the tiles at the

same relative pitch as the tiles above. This

becomes even more important where the roof

pitch is at, or close to, the minimum

recommended roof pitch of the tiles. If the tiles in

the eaves courses are set below their minimum

recommended pitch, there is a risk of water

ingress through the tiling at the point in the roof

where there is most water as it runs down from

the roof slope above.

For double lapped plain tiles, a change in pitch –

which is what a bellcast eaves is – affects tiles

in several courses up from the eaves, not just at

the point of the change in pitch. For single lapped

tiles, a bellcast eaves is not recommended

because it directly affects the way the tiles

overlap and can interfere with the headlaps’

normal water-shedding function.

Have you got a pitched roofing query or topic you’d like

John to discuss? Email mattdowns@media-now.co.uk or

contact John on the details below:

Contact John Mercer

www.johnmercerconsultant.co.uk

@Johnmercer3

In summary:

• Set the fascias or tilt fillets to support

the eaves course tiles at the same relative

pitch as the tiles above.

• Ensure there is full support behind the

fascia for the underlay to lay at an

adequate fall towards the gutter.

• Do not extend the roof underlay into the

gutter. Install proprietary underlay support

trays or use strips of 5U bituminous

underlay which is more resistant to UV

attack.

• Ensure a clear air path is maintained for

ventilation at eaves into the roof space.

MAY 2021 TC 21


Solar PV Opportunities

FUTURE ROOFS WILL BE SOLAR

ROOFS – SO DON’T MISS OUT!

When changes to Part L are introduced next year, it is anticipated that many new build

roofs will include solar PV as standard. Stuart Nicholson, Roof Systems Director at Marley,

says all contractors should consider adding solar services to avoid losing revenue.

In January, the Government set out the draft

regulations for the 2025 Future Homes

Standard, which will require all new homes to

be highly energy efficient, with low carbon

heating, and be zero carbon ready by 2025. To

ensure the industry is prepared for this, new

homes will be expected to produce 31% lower

carbon emissions from 2022 as part of changes

to Part L of the Building Regulations.

This improvement in energy efficiency cannot be

made by simple enhancements to the building

fabric and at this stage, solar PV on the roof with

an efficient gas boiler appears to be the easiest

and most cost-effective way for housebuilders to

meet the new Part L targets.

Indeed, if the changes to Part L have the impact

and effect that we expect, around 33% of the roof

covering in new builds could be in solar PV,

alongside continued growth in the retrofit market.

In a highly competitive market, the ability for

contractors to offer these increased solar services

could be the difference between winning or losing

jobs, or risk losing revenue to subcontracted solar

installers.

The future roofing market & solar PV

Solar PV represents such an important part of the

future roofing market that we have recently

acquired Viridian Solar, the manufacturers of the

PV panels in our Marley SolarTile.

The acquisition of Viridian Solar allows us to offer

a fully integrated, easy to install, solar PV roof

system solution from a single source.

Integrated PV systems, like our Marley SolarTile,

are designed so they can be installed by roofing

contractors because they simply replace a section

of roof tiles or slates, acting

as a seamless part of the

roof design. They are easy to

install with a simple push

together design and

electrical connection can be

done once the roofer has

finished fitting the panels, so it

doesn’t hold up the job. It is fully

compatible with our full roof system

and is covered by the 15-year system

warranty.

So what can contractors do now to

prepare for the changes to Part L?

1. Become MCS certified or form a solar

partnership The Microgeneration Certification

Scheme (MCS) covers installations of products

used to produce electricity and heat from

renewable sources, including solar. So, while you

don’t have to be certified to install Marley

SolarTile, it is required that the whole project is

overseen and signed off by an MCS certified

installer.

Therefore, you can either form a partnership with

a certified electrical contractor or become MCS

certified to help differentiate your business. To

apply, you will need to get the appropriate training

for solar PV connection and apply to a

certification body to arrange assessment. More

information can be found at Becoming certified -

MCS (mcscertified.com).

2. Take advantage of free training and

resources To help you make the most of solar PV

opportunities and gain confidence in installation,

we will be running free training courses

throughout 2021, with face-to-face training

programs taking place when

national lockdown

restrictions and social distancing

guidelines are eased. There are also

easy to follow demonstration videos

and estimating tools on our website.

3. Familiarise yourself with the solar PV

systems available Look for a reliable and highquality

roof-integrated solar PV system, as almost

all new builds favour these over ‘on-roof’

traditional panels because of their superior

aesthetics. With an integrated system, both tiles

and PV are installed together, so there is no

modification to the roof tiles, securing the

warranty.

Our integrated SolarTile is compatible with all our

clay and concrete tiles and slates, so solar PV

can easily be incorporated into any roof design.

The advantage of our system is that it has an

integrated tray so no counter battens are

required, making it easier to install with higher

wind and fire resistance than separate tray

systems.

4. Seek advice For advice on getting started with

solar you can speak to your local Marley roofing

specialist or visit www.marley.co.uk/solarinstall

Contact Marley

01283 722588

www.marley.co.uk

@MarleyLtd

Left: Marley recently acquired

Viridian Solar, who manufactures

the PV panels in its Marley

SolarTile. Inset Stuart Nicholson,

Marley Roof Systems Director.

22 TC MAY 2021


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Training Focus

A HANDS-ON APPROACH TO

COLLEGE SPONSORSHIP

Throughout the academic year, CUPA PIZARRAS has been proudly sponsoring six

different colleges across the UK to help students expand their skillset and succeed in

their studies. In the second instalment of this series, Total Contractor met with Steve

Dowell, Lecturer of Roof Slate at South Devon College, to discuss the impact of the

sponsorship on his students and to hear how he has changed his teaching methods to

adapt to the COVID-19 pandemic.

Could you tell us about the sponsorship

and how your students have benefitted?

CUPA PIZARRAS’ college sponsorship provides

pallets of free slate to the colleges for use during

training as well as training videos and merchandise.

It is an incredible opportunity that ensures we have

enough slate to teach all the required practices.

Roofing materials can be expensive to purchase

and of course we do experience a high level of

material wastage with the students who are just

starting out; with breakages, not cutting, dressing

or holing the slates correctly. The donation of

these slates means students are able to keep

practicing until they are competent with their

tools and know how to set roofs out properly.

Under normal circumstances, there is also the

opportunity for four apprentices from each college

to visit Spain and see CUPA PIZARRAS’ quarries.

We’ll obviously have to see how things are given

the pandemic, but in previous years this really

helped to stimulate some healthy competition

within the class for a spot on this trip, which has

led to improved attendance, attention to detail,

and all written course work completed to a high

standard.

The sponsorship makes a big difference to the

students. Being an apprentice can be challenging

as it is necessary to juggle both learning new

skills and working. I think being backed by a highquality

product manufacturer, providing us with

slate and training really gives the students the

confidence to succeed.

Despite many of the challenges we faced when

we had to switch to online teaching over the past

year, restricting the students’ hands-on learning,

all the students have been able to benefit from

the online training videos and technical guides.

Due to COVID-19, how have your

students been impacted?

It has been difficult for them

because their practical skills have

been impacted and this will have to

be taught at some point. However,

they have had the advantage of working

with roofing material non-stop for the past 12

months. They are also all fortunate because none

of them were furloughed during the pandemic and

were able to gain some real hands-on experience

at their apprenticeships, which is one of the most

important parts of their education.

How have you changed your teaching

techniques to adapt to the current

situation?

Although we are not in a classroom setting, we

have ensured that all our students still receive

quality training and learning. Naturally, we moved

everything online and we have continued with

face-to-face video meetings. While the students

were working at their apprenticeships, I would

visit them on site to make sure everything was

running smoothly for them.

As we are all working and teaching remotely, it is

important to me that the students are still able to

Above: Apprentices from South Devon

College, one of the colleges CUPA supports.

connect with one another. The

pandemic can be isolating and I did

not want them to feel as if they were

having to learn alone. When we had online

classes, it was great to see them catch up amongst

themselves and to still develop that friendship

despite us all being in separate locations.

How has CUPA PIZARRAS provided support

to your students during the pandemic?

The students have not only had hands-on

experience with CUPA PIZARRAS slate, but have

also been greatly supported with online CPDs,

YouTube videos and technical guides. CUPA

PIZARRAS has given the students a diverse

approach to understanding and learning the

products and the benefits of using them. Although

the pandemic has changed the way we learn,

CUPA PIZARRAS has remained dedicated to the

students’ learning.

Contact CUPA PIZARRAS

www.cupapizarras.com/uk/

@CUPAPIZARRAS_en

24 TC MAY 2021


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Underlays

ROOFSHIELD EXPOSURE TESTS

The A. Proctor Group’s technical team carried out in-house exposure tests on

Roofshield in 2019 – purely for their own knowledge – which proved very timely and

provided some interesting findings for projects that were left exposed during

lockdown…

In early 2019, the A. Proctor Group’s (APG)

technical team began in-house testing to

measure the effects of extended outdoor

exposure on the performance properties of their

popular air and vapour permeable roofing

underlay, Roofshield.

Their timing was impeccable. Soon after the 12-

month test was complete, Covid-19 forced the

closure of some building sites across the UK while

at the same time the full effects of Brexit began to

be felt on supply chains, particularly that of roofing

battens and tiles. With this combination of

scenarios beyond anyone’s control, contractors had

no choice but to leave roofing membranes exposed

for longer than manufacturers’ recommendations.

The results of APG’s extended exposure testing

could not have arrived at a better time.

The maximum recommended exposure time for

any construction membrane is determined by

extensive testing by the manufacturer which looks

at the membrane’s basic components, any

additives, and the structure of the final product

itself. For some of the higher regarded

membranes, these recommendations are backed

up by independent third-party testing like LABC

and BBA. But, APG says, sometimes testing by

well-known industry figures in laboratory

conditions, however rigorous, isn’t the type of

reassurance people are looking for.

Never mind the chaos of a global pandemic or the

radical shakeup of a country’s well-worn economic

model. Everyday scenarios like delivery delays,

scheduling mix-ups, and even inclement weather

are what make ‘how long can a membrane be left

exposed for?’ one of the most common questions

that comes to APG’s technical department.

The original purpose of APG’s in-house tests then

Above: A. Proctor Group’s Roofshield underlay.

was not to re-write Roofshield’s 20+ years tried

and tested performance specification, rather, by

simulating a normal delay to a roofing project,

APG wanted to give contractors that extra bit of

reassurance.

It is important to understand here that, given the

purpose of the experiment, the ad hoc nature of

the test, and the small sample size, that the

findings of the 12-month trial described here are

anecdotal only. The results will not inform any

future changes to Roofshield’s current installation

guidance, performance specification, or

accreditations by third parties.

The test was carried out at the APG’s head office in

Blairgowrie, Scotland, between Jan 2019 and Jan

2020. The test consisted of sheets of Roofshield

being mechanically fixed to an angled wooden rig to

mimic a typical pitched roof installation. The

angled plane of the ‘roof’ was then oriented to be

south-facing to receive maximum UV exposure, and

care was taken to position the rig so that any risk

of shading was minimised.

Over the next 13 months, samples of the exposed

membrane were tested on a quarterly basis by

the independent testing organisation BTTG. A

sample of the membrane was tested at the

beginning of the trial to set a baseline against

which subsequent performance measurements

could be compared. The samples were tested

using the standard metrics for air and vapour

permeable roofing underlays: water penetration,

air permeability, and vapour permeability.

The results for air and vapour permeability were

excellent, with very little loss in performance.

While the samples’ performance with these

metrics did decrease gradually over time, the

results remained within Roofshield’s published

BBA-certified performance specification for the

entire 12-month experiment.

The 3, 6 and 9-month Roofshield samples all

achieved Class W1 for water penetration.

Considering the BBA Site Practice Bulletin Number

2 guidance is to protect any membrane that needs

to be left exposed for more than a few days with a

tarpaulin, APG regards this as outstanding.

This ensured that once the building sites were

open and the primary water shedding layer

installed, the roof underlay would perform its

main function of secondary water shedding,

vapour and air permeable. There was no need to

strip roofs and install new underlay.

The APG technical team wish to stress the results

of this or any other in-house test are not a licence

to ignore published guidance – and point out that

in the case of Roofshield, current recommendations

for handling, installation, storage, and maximum

exposure times should be followed. If a delay in

installing the primary covering – the slates, tiles –

on your roofing project is inevitable, APG says it is

always best practice to protect Roofshield with a

tarpaulin as soon as possible to keep UV exposure

to an absolute minimum.

Contact A Proctor Group

01250 872 261

www.proctorgroup.com

26 TC MAY 2021


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Pitched Roofing

EFFICIENCY UP BUT NOT AT EXPENSE

OF QUALITY OR SUSTAINABILITY

Chris Piper, Sales Director for Housing Developers at Ibstock PLC, which includes the

Forticrete brand, provides his insight into the latest trends and developments in roofing

technology that are supporting roofing professionals in achieving a more efficient and

sustainable method of building.

Whilst 2020 saw unprecedented

disruptions to the sector, the

environmental credentials of both new

and existing residential properties continued to be

a key focus, as sustainability targets outlined by

the government’s Future Homes Standard placed

further pressure on professionals, not only with

regard to their methods of construction, but the

environmental credentials of the materials used.

Last year, contractors also worked extremely hard

to sustain an increased rate of building in a bid to

overcome the backlog in new developments due

to lockdown, whilst simultaneously meeting the

significant increase in demand caused by the

extension of the Stamp Duty holiday and the

confirmation of the Affordable Homes

Programme.

Roofing solutions that support professionals in

achieving a faster, more efficient rate of building,

without compromising on quality or visual appeal,

are therefore currently the most popular type of

materials being required and installed.

Fewer tiles

Products such as Forticrete’s large

format SL8 roof tiles are leading the

industry in fulfilling each of these

requirements, by offering

superior coverage benefits, as

just eight tiles are required

per square metre versus the

usual 10 per square metre for

a traditional large format roof

tile.

This results in a 20% reduction in the number of

tiles handled and laid, actively supporting

developers in increasing the efficiency,

productivity, quality and overall sustainability of

their builds.

Aesthetics count

As the importance of aesthetics also continues to

be a key driver for Britain’s construction industry,

roofing contractors are searching for new roofing

materials that offer an enhanced or unique visual

appeal, without compromising on quality,

performance or sustainability.

This can be achieved by installing lightweight and

durable alternatives to natural clay and slate roof

tiles, which proactively reduces the

environmental impact whilst

simultaneously improving the overall

thermal efficiency of the property.

By choosing concrete roof tiles

Left: Chris Piper, Sales Director for Housing Developers

at Ibstock PLC, which includes Forticrete.

rather than slate or other natural

materials, professionals can improve the

sustainable performance of their project

by reducing the amount of quarrier aggregate

used.

In response to this, Forticrete has substantially

reduced the embodied carbon within its popular

Gemini concrete roof tiles by using Lafarge

Cement’s SustainaCem to provide developers

with a more durable and environmentally friendly

tile that delivers increased longevity and

minimises product waste.

Due to Gemini’s innovative ‘double cambered’

design, the interlocking roof tile also requires

fewer tiles to cover the same area when

compared to a conventional double lapped plain

tile. This successfully aids developers in further

reducing the environmental impact of their

development, whilst simultaneously minimising

overall build costs.

Following the challenges of 2020, it has become

more important than ever for customers to work

in close collaboration with manufacturers to not

only understand build schedules and align

product supply as closely as possible, but support

the development of roofing products that support

professionals in achieving an increased rate of

efficiency, without compromising on quality or

sustainability.

Contact Forticrete

www.forticrete.co.uk

@Forticrete

28 TC MAY 2021


From vents and outlets to edge trims and cappings...

Areco are the UK’s leading distributor of flat roofing accessories

With over 50 years experience of manufacturing and

distributing renowned brands such as Glasstrim,

Nutrim, V-Trim and Rofycom, Areco has over 40,000

metres of roof edge trim in stock for next day delivery.

A full range of Roof Drains, Termination Bars, Breather

Vents and Paving Supports mean we have the right

product for your project.

Areco also offer a bespoke metal fabrication service

for flashings and wall cappings.

www.areco.co.uk

• technical knowledge and advice

• nationwide express delivery

• competitive rates

tel: 01922 743553

t: 01922 743553 e: sales@areco.co.uk

ARECO, Unit 2A Coppice Park, Coppice Lane, Aldridge, Walsall, West Midlands WS9 9AA


Shingles

LOCKDOWN SHINGLES SUCCESS

SHINES A LIGHT ON SUSTAINABILITY

The use of shingles on roofing projects is often as much about the aesthetics as it is

about making a roof watertight. Shaun Revill, from SR Timber, believes that the

combination of lockdown and the sustainable roof movement means there’s never been

a better time for shingles to become more widely adopted in the UK housing market.

SR Timber has seen a 25% increase in

sales of shingles in the last 12 months. It

may not sound like much, but that’s a big

increase on a product that usually ‘ticks along’ in

sales terms.

This growth has been fuelled by the rise in home

improvement projects, and feedback from our

merchant customers suggests that shingles have

been predominantly used on structures such as

summer houses and outhouses, as opposed to

full roofs. Most notably, shingles have been used

to replace felt roofs to enhance the aesthetics.

It’s a small but important step in the awareness

of shingles as a roof covering, and it goes to show

that their use isn’t exclusively for the kinds of

houses you see on TV shows such as Grand

Designs.

The aesthetics of shingles, especially as they

weather over time, is the reason many architects

specify them – but we’re seeing the momentum

of sustainable roofing as another equally

compelling reason for the wider adoption of

shingles on more mainstream housing

developments.

Groundswell in the use of sustainable

materials

You only have to look through the pages of Total

Contractor to see the increasing amount of

articles referencing the sustainability of materials

used in general UK construction – as well as

housebuilding.

This is being driven from government level with

bold initiatives such as The Future Homes

Standard – which will see changes to Part L and

Part F of the Building Regulations for

new dwellings. To be brought in

by 2025, this will require newbuild

homes to be futureproofed

with low-carbon

heating and world-leading

levels of energy efficiency.

Then there are industry initiatives such

as ‘Wood CO2ts less’, which is the brainchild of

a group of timber federations. It aims to create

more sustainable buildings through methods such

as the Chartered Institute of Building’s ‘Carbon

Action 2050 toolkit’. The ‘Wood CO2ts less’

campaign’s organisers are calling on the

construction industry to continue engaging in

climate-friendly actions by using more wood.

Whichever way you look at it, shingles are ticking

all these boxes.

Sustainability starts in the forest

Shingles are a truly renewable product with a low

carbon footprint according to the Cedar Shake &

Shingle Bureau. For instance, our suppliers in the

forests of Canada have a policy to re-plant three

trees for every one harvested within one year and

to the exact species ratio of the trees that were

harvested. Our PEFC-certified shingles offer a full

chain of custody to demonstrate complete forestto-roof

sustainability and traceability.

Quick facts about shingles

• Shingles can be fixed at a roof pitch as low as

14 degrees.

• The life expectancy of shingles is in excess of 50

years – when treated with Tanalith E preservative.

Left: Shaun Revill, Trading Director at

SR Timber.

• Western Red Cedar

Shingles are classified as

‘durable’ and offer excellent

natural insulation properties,

with a value of K = 0.1067

W/M.

• Blue Label Shingles (which SR Timber

supplies) are 100% heartwood and edge grain, so

the grade won’t include knots or sapwood and

can be used on all roof and vertical applications.

• Standard shingles (random widths from 75 mm

to 325 mm) are typically 400 mm (long) x 10 mm

(butt) x 2 mm (tip).

• The use of silicon bronze nails or stainless

steel fixings is very important, as other metals

react with the tannins in the shingles, and this

will cause staining on the shingles.

• Shingles are always sold by the bundle. The

coverage of the bundle is dependent on the pitch

of the roof, as different batten gauges are

recommended for different pitches. For example,

most roofs are above 22 degrees, and the

coverage is 2.28 m² per bundle when using a 125

mm batten gauge.

Find out more about shingles:

https://sr-timber.co.uk/Product/sr-timbercedar-shingles/

Contact SR Timber

01623 446800

https://sr-timber.co.uk/

30 TC MAY 2021


Specialist flat roofing and waterproofing components

CLASS

A1

FIRE RATED

Non-combustible, aluminium adjustable paving support

• Approved Document B compliant

• No additional plastic or rubber

components required

• 76mm diameter head with 4 paving

spacers; easy installation

65-475mm

• 112mm base with perforations for

water drainage

• Thread with 2 locking allowing fine

adjustment

• 2 tonne uniformly distributed load

• 3 tonne concentrated load

• All components 100% recyclable.

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

designed for use with paving and ceramic surface finishes on external balconies.

Can also be used on roof terraces.

For more details please visit: www.instar-uk.co.uk

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


USE 20 % RO OFLIG HTS

Rooflights

THE PEOPLE BEHIND THE QUIET

REVOLUTIONS IN ROOFLIGHTING

Total Contractor takes a look behind the scenes at NARM, the National Association of

Rooflight Manufacturers…

The last two decades have seen huge

advances in the design and application of

rooflighting, bringing important advances in

building performance and safety. Many of these

have been the result of intense R&D efforts by

leading manufacturers. Behind them has been

one supporting organisation that’s driven the

changes in UK standards & legislation that have

made these improvements a day-to-day reality

across all sectors of the construction industry and

to the wider public.

NARM, the National Association of Rooflight

Manufacturers, represents manufacturers and

suppliers of all types of rooflights and has played

a pivotal role in establishing the effects of

rooflighting on building performance and in the

development of rooflight standards which protect

the market-place from potentially poorly

performing products – as well as promoting best

practice among specifiers and installers.

Recognised as the UK’s leading independent and

impartial authority on rooflighting, NARM’s

Technical Committee comprises a team of leading

experts, each having been selected from within

NARM member companies, to represent the

Association. Their work has underpinned many

im-portant developments and continues to inform

and support the industry.

The sustainability revolution

Soon after NARM’s formation in the late 1990s,

independent research commissioned by the

Association showed that minimal losses in

thermal insulation brought about by the

installation of rooflights are greatly offset by the

energy savings resulting from reduced demand

for electric lighting. Recognising the potential for

lower carbon emissions resulting from reduced

requirements for electric lighting, a NARM

campaign was launched to bring these

findings to a wider public, using

the slogan: For a smaller

carbon footprint, add more

rooflights (see right).

Since then, NARM has also

been instrumental in

collecting, analysing and

interpreting rooflighting data upon

which the evolving rooflighting

requirements in The Building

Regulations Approved

Document L (Conservation of

fuel & power) are based.

Further studies commissioned

by NARM have highlighted

means by which solar

overheating in buildings can

be controlled, and the

potential for greater energy

savings through the

integration of automatically

controlled electric lighting,

FOR A SMALLER CARBON FOOTPRINT

THE ONLY SAFE CHOICE

F O R

G L A Z I N G

O V E R H E A D

LAMINATED

INNER PANE

E N D O R S E D B Y

with natural daylighting.

Thanks to NARM’s pioneering

work in the field, the

sustainability benefits of

increased natural light

levels are now widely

understood and applied

across the built environment.

Today, NARM’s freely available online

Technical Library

contains a wealth of

impartial, up-to-date

information covering the

subject of energy

performance in respect of

glass, thermoplastic and

GRP rooflights.

The safety revolution –

for roof workers

Since its inception, NARM

has focussed considerable

resources on improving the

32 TC MAY 2021


Images opposite, top to bottom: NARM provides a library of freely available technical info on its website; NARM’s ‘carbon footprint’ campaign raised awareness of the role of rooflights in building

energy efficiency; NARM’s current campaign for the use of laminated inner panes on glass rooflights is bringing pressure on the British Standards Institute for a regulatory amendment.

safety of roof workers.

As we know, working on roofs is a high-risk

activity because it involves work at height – and

falls through fragile materials, such as aged

rooflights and asbestos cement roofing sheets,

have historically accounted for a high number of

deaths and injuries.

To address this issue, the ACR[M]001 ‘Red Book’

test was developed by the Advisory Committee for

Roofwork (now Advisory Committee for

Roofsafety), drawing on data supplied by NARM –

an ACR member organisation. This defines a test

for non-fragility which can be applied to any roof

assembly, intended to indicate whether the roof

can support the instantaneous loads imposed by

a person falling or stumbling onto it. It is not a

product test but products such as rooflights can

be tested as part of a roof assembly. It sets a

minimum standard for non-fragility and all

professionals involved with roofing should be

familiar with it. The Health and Safety Executive

and many other prominent roofing trade

associations are also member organisations of ACR.

NARM’s on-line Technical Library contains a

number of documents covering non-fragility in

respect of rooflights, including a handy

‘Quickguide’, which outlines the key points of the

ACR[M]001 test and classifications.

The safety revolution – for building

occupants

During the last year, NARM has launched a

campaign to support the requirement for

laminated inner panes on glass rooflights for

important safety reasons, bringing pressure on

the British Standards Institute for a regulatory

amendment.

Current British Standards still permit the use of

toughened glass (non-laminated) for inner panes

of glass rooflights in some instances, bringing the

risk of shattering and falling glass into the room

below. Using laminated glass inner panes

significantly reduces this risk and is the reason

behind the NARM campaign to ensure all glass

rooflights have laminated inner panes, following a

number of concerning incidents involving poorly

designed or installed glass rooflights – without

laminated inner panes.

NARM has also published a number of technical

documents relating to fire safety, including a new

‘Quickguide’ entitled ‘Definition of geometric free

area for Smoke Vents’, published in early 2021.

Continuing progress on many fronts…

The NARM Council, committees and working

groups meet regularly on-line to address current

issues and drive new initiatives. As examples, the

“NARM has launched a

campaign to support

the requirement for

laminated inner panes

on glass rooflights”

Association is currently consulting its

membership regarding the CPA’s CCPI (Code for

Construction Product Information). NARM has

also recently published a post-Brexit Statement

on the Construction Products Regulation, and the

changes to Product Standards, CE marking and

the introduction of UKCA and UKNI marking of

products. This document, along with many others,

is also available on the NARM website.

NARM represents leading manufacturers and

suppliers of all types of rooflights into the UK

market and works closely with a number of

organisations and other trade associations.

NARM is a member of the RIBA CPD Providers’

Network; The Construction Products Association

and Eurolux, the European trade association

representing rooflight suppliers.

Contact NARM

www.narm.org.uk

@_NARMUK

MAY 2021 TC 33


Multiple Materials

CHOOSING MULTI MATERIAL

MEMBRANES FOR YOUR PROJECT

Designing and installing roofing using multiple materials is a great business opportunity

but it can become a risky challenge for the roofing contractor. Paul Jacobs, SIG Design &

Technology’s Installation and Training Manager, discusses the skills required for multiple

waterproofing projects and explains how it can provide opportunities for work.

What is the best waterproofing system for

my project? It’s a question we’re always

asked at SIG Design & Technology and

its unlikely that one product will provide all the

answers.

Creating the perfect roof has never been more

challenging and product selection should follow a

structured approach. Sourcing products that meet

the client’s brief and the performance

requirements of the project e.g. a waterproofing

solution that can handle complex detailing or a

cost-effective single ply to replicate a metal roof.

Ideally, the roof should be designed by a single

supplier who takes responsibility that it meets the

statutory requirements and planning regulations.

Finally, it should be installed to a high standard

and the whole system covered by one single

point guarantee.

Imperial Court

AJ Lucas, one of our Design &

Technology Accredited Contractors

(DATAC) has recently finished a newbuild

of luxury apartments on Streatham

High Street, London. Comprising of four different

waterproofing areas, Imperial Court exemplifies

how correct specification and contractor

experience in multiple materials met the

requirements on this project.

Main roof: the large, warm roof design is enclosed

by upstands on all sides and supports an array of

free-standing solar panels. With limited detailing, a

single ply membrane provided a cost-effective

solution that was quick to install and can support

foot traffic during maintenance and inspections.

The PVC membrane is suited to a fully

bonded approach and was installed

on a plywood substrate.

Balconies: each apartment has

been designed with an enclosed,

private balcony. Although single ply

membranes are suitable for these areas,

detailing and manoeuvrability in such a small

space can be difficult. As an alternative, AJ Lucas

used a cold-applied liquid membrane which is

fast-curing and with virtually no fumes was much

easier to work with in the confined space. A more

robust felt system which offers excellent strength

and tear resistance was selected to waterproof

the four ground floor balcony areas.

Communal courtyard: providing a play area and

seating for residents, the communal

courtyard is a concrete structure

designed with zero falls. The

waterproofing layer is overlaid with

pedestals and paving slabs making

access for maintenance difficult.

Whilst single ply can be used in this

situation, special attention would be

needed to protect the membrane during and after

installation, making its use more complicated. For

this area, AJ Lucas used a hot melt membrane

which has self-healing properties and has been

designed to last the lifetime of the project.

Working profitably on multi material

projects

Be clear on what is being asked of you and make

sure you get the pricing right from the start. Ask

questions if the drawings aren’t clear and make

sure your quote doesn’t miss out whole roof areas.

Sometimes areas on a project can be

split over multiple drawings. Try

going back to the drawing board

and colouring up a roof plan as you

price, it’s effective and it works.

Make sure you are 100% certain as to

where your elements stop and start. It’s

sensible to either ask the question or put a

qualification in your tender. Find out if you can

start and stop at sensible break points and how

many visits are needed. And discuss sequencing

plus area release schedules, even on simple

projects.

Getting advice

We supply a wide range of products and systems

from various manufacturers and we’re ideally

placed to offer contractors advice on our systems.

At Imperial Court we worked with AJ Lucas to select

the most suitable membrane for each area, plan

the schedule of works and time deliveries as

required. SIG also designed and supplied a tapered

insulation scheme for each area of the project

working to U-values supplied by the architect.

Of course, successful installations don’t happen

by chance and DATAC contractors receive training

in the products they work with. Our courses teach

them not only the skills needed to install the

waterproofing elements correctly, but also to

understand the whole system, including how

different materials interface with other building

elements.

Contact SIG Design & Technology

www.sigdandt.co.uk

@SIGDesignTech

34 TC MAY 2021


Advertorial: Britmet

BRITMET LITESLATE: A TRULY

BRITISH SUCCESS STORY

Britmet started its journey into the

composite slate tile market in 2017 in a

bid to create an authentic, sustainable,

lightweight slate.

After research began, Britmet originally specified

a synthetic tile to be manufactured in China to

research and test UK product demand. In a very

short space of time, the market demand was

confirmed but due to quality control issues, a

decision was made to bring the manufacturing

process over to the UK.

In 2018, the lengthy research

and design process began.

Britmet used real Welsh

slate in order to perfect

the aesthetics and

performance qualities of

the LiteSlate. By January

2019, the development of the

first mould for the LiteSlate had

begun and the machine was delivered

and set up in the UK production plant.

Britmet accomplished its goal of perfecting the

natural slate surface by May 2019, ready for the

product launch at the FIT Show at the NEC. Due

to a long list of leads, full production of the UK

LiteSlate quickly followed with stock retention

plans in place. In summer 2019, the LiteSlate

passed its fire testing with a BS476-3 Fire Rating

and new mould designs were developed.

Increasing customer demand for the composite

slate caused production to double less than a

year after the product launch, and by the end of

July 2020, production tripled to produce multiple

riven edges, offering more of a natural slate effect

finish. There are now seven production lines

manufacturing the Liteslate, ensuring that 14

slates are made every 45 seconds to meet

customer demand. These are stocked in Britmet’s

70,000ft² premises in the West Midlands, as well

Images show Britmet LiteSlate with its multiple riven edges which give a natural slate-effect finish.

as through Britmet’s 100

nationwide stockists – and

the list of stockists is growing

on a weekly basis.

Furthermore, Britmet says the LiteSlate is

designed with the environment in mind. Over

90% of the Polymers that LiteSlate is made from

are recycled. In 2021, Britmet says it will recycle

over three million kilograms of polypropylene

during the manufacturing process.

The LiteSlate tile range has also been expanded

to seven different colours – the largest standard

colour range on the UK synthetic slate tile market!

Despite having all the characteristics you can

expect from a traditional slate, the LiteSlate won’t

break, chip or delaminate thanks to a

sophisticated, ground-breaking design. At only

12kg per sqm, the LiteSlate is incredibly

lightweight with low-pitch capabilities down to 14

degrees. As the Liteslate is compression moulded,

it has detailed impressions displaying where to fix

the slate, making it even easier for installation

(including DIY). It is also easy to cut as you only

require a sharp, fine-tooth saw or sharp blade.

“The LiteSlate tile

range has been

expanded to seven

different colours”

Britmet’s Liteslate is decorated with many

accreditations and certifications, including a

BS476-3 Fire Rating and a 40-year weather

penetration guarantee. Overall, LiteSlate is a high

performance, synthetic slate tile that makes a

superb modern-day alternative to traditional slate

roofing for all projects.

Contact Britmet

www.britmet.co.uk

@Britmet

36 TC MAY 2021


sales@britmet.co.uk | 01295 250998 | www.britmet.co.uk | #TheBritmethod

Low-Pitch

Lightweight

Sustainable

Liteslate

designed with the environment in mind

Lightweight Composite Slate | Lightweight Granulated Tile Panels | Lightweight Tile Effect Sheets | Flat-to-Pitch Roof Systems

Structural Liner Trays | Door Canopies | Decorative Exterior Paint

RAISING THE STANDARDS IN LIGHTWEIGHT ROOFING


EPDM Focus

RUBBER STAMPED: A BUSY AND

BRIGHT FUTURE FOR EPDM...

Durable, cost-effective and easy-to-install, it is no surprise that an increasing number of

roofers are turning to EPDM as a solution for flat roofs. Below, George King, Divisional

Managing Director at SIG Roofing, takes a closer look at the benefits of EPDM – and

considers how its popularity could be set to grow and grow.

An established roofing membrane solution

in large-scale commercial applications for

some time, Ethylene Propylene Diene

Monomer (EPDM) is fast becoming recognised as

an attractive option for domestic properties, too.

Indeed, while flat roofs used to be the sole

preserve of garage conversions and single storey

extensions, they are an increasingly popular

choice for new build domestic properties – and

that’s a trend we expect to grow further still

across the next few years.

The reasons behind EPDM’s surging popularity

are clear. Cost-effective and durable, EPDM

delivers a fantastic return on investment for a

property, with some systems accredited by the

BBA and affording an expected lifespan of 35

years. This means EPDM can be specified and

installed with utmost confidence – giving

homeowners total peace of mind.

Beyond durability, EPDM has been especially

designed to deliver ultimate flexibility. This is an

important consideration as it means it can bend

with normal levels of structural movement;

something that can lead to breakages or tears in

other systems. What’s more, the UV stability of

EPDM means it maintains flexibility for longer –

even when other systems have aged and become

brittle.

Correct installation

As more and more homeowners switch-on to the

benefits of EPDM, this undoubtedly creates

exciting new market opportunities for roofing

contractors. But for those benefits to be fully

realised, it’s absolutely essential to ensure that

the EPDM is installed correctly.

“As more and

more

homeowners

switch-on to the

benefits of EPDM, this

undoubtedly creates

exciting new market

opportunities for

roofing contractors”

That’s why SIG Roofing has created a series of

‘how-to’ video guides for our EPDM range; arming

contractors with all of the information they need

to ensure the solution is correctly installed. The

comprehensive guides can be found at

www.fix-r.co.uk, and provide step-by-step

support in installing EPDM; from the laying of the

initial membrane to using the correct perimeter

trims and kerb systems.

Alongside this, we have made prolonged

investment into our own EPDM market offering –

FIX-R EPDM and FIX-R Reinforced Single Ply. Our

FIX-R EPDM roofing membranes, which both have

BBA Approval, are flexible, aesthetically pleasing

and manufactured to last – and can be installed

with confidence for 35 years. Requiring no heat or

Left: George King, SIG Roofing; Above, left:

FIX-R EPDM & FIX-R Single Ply; Installation.

flames during installation, FIX-R

EPDM significantly reduces risk to

contractors while driving down on-site

insurance premiums.

Our Reinforced Single Ply is also quick and easy

to install, reducing associated installation costs

across the project. Furthermore, the product is

supplied in roll form, making it the ideal solution

for larger scale or commercial projects, while

FIX-R EPDM, which can be cut to size for a

single-sheet application, is ideal for smaller

roofing jobs.

As with the material itself, the popularity of EPDM

looks set to last. As the country gears up for a

post-lockdown boom in new-build housing – as

outlined in the Prime Minister’s ‘build, build,

build’ address last year – demand for EPDM

looks set to go through the (flat) roof. With our

robust range and step-by-step installation

guides, we are seeking to arm contractors with all

the tools they need to take advantage of these

upcoming opportunities.

Contact SIG Roofing

www.sigroofing.co.uk

@SIGRoofing

38 TC MAY 2021


We are

HIRING

Alincourt

ROOFING

Due to our continuing expansion programme, we are now looking for another member

of staff to join our busy office as an assistant contracts manager.

This is an exciting role which would suit someone who already has previous knowledge of

roofing and maybe looking for a change.

We can offer our full support and on going training to unlock your potential to grow and

develop within our company.

Must have a full clean driving licence and CSCS card.

Ideally in East or West Sussex, Surrey area due to the locations of our ongoing contracts.

If this is of interest please send an email: office@alincourt.com

For furt

ther inf

ormation

or a hire quotation call

Email: sales@co

oker

erhire.com

www.cooke

erhire.com

MAY 2021 TC 39


EPDM & Modular Construction

CIRCULAR ECONOMY: CHOOSING

THE RIGHT ROOFING MATERIALS

From electronic goods to clothing, the circular economy concept of reduce, re-use and

recycle has been successfully applied across a multitude of industries – but to a lesser

extent for construction and building components. Adrian Buttress, Managing Director at

Permaroof, explains why he feels EPDM rubber roofing can contribute to circular

construction through modular building.

Circular economy is gaining more attention,

particularly because it brings a potential

solution to the tension between the

growing demand and the limited supply of

materials.

The climate change emergency is the biggest

challenge facing our planet, and it is no secret

that the construction industry consumes a

significant number of global resources and

generates a vast amount of rubbish.

In fact, the sector is the largest consumer of

natural resources and the biggest contributor of

waste. However, it can counteract this – and

improve its reputation – by supporting the shift

towards a circular economy through the use of

more reusable and recyclable building stock.

When we usually talk about the circular economy,

we think of consumer goods with a relatively

short life. However, the principles can be applied

to the construction industry, where the product is

the building itself.

Modular construction – which involves creating

property components in a factory environment

and then transporting the modules to

site to be assembled – perfectly

fits the ideology of circular

economy. It can also

potentially be a key driver in

carbon footprint reduction in the built

environment industry and improve its

sustainability credentials.

And this idea is becoming increasingly prevalent.

Last year, the UK unveiled its Circular Economy

Package, which committed to a 65% municipal

recycling rate by 2035, and in tenders, subcontractors

are being asked to demonstrate their

commitment to waste reduction.

Creating sustainable cities

Due to its resource and waste

reduction, reusability,

Left: Adrian Buttress, MD Permaroof.

Continued on page 42


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MAY 2021 TC 41


EPDM & Modular Construction

Article

Continued from page 40

adaptability, and recyclability of all components,

modular construction offers a multitude of

environmental advantages. It is also

demonstrated that prefabricated buildings are key

to material savings, waste reduction, re-use of

components, and various other forms of

optimisation for the construction sector.

Modular builds are a new breed of structures that

will be the cornerstone of modern, sustainable

cities due to their ability to be modified,

deconstructed, and relocated – re-using their

parts almost like LEGO blocks.

Factory fabrication offers a very attractive option

for projects where timescales are tight, or site

and weather conditions are challenging. However,

it is important the right materials are specified to

offer improved building quality and long-term

performance.

Choosing the right materials

In recent years, we have seen a surge in demand

for modular construction – not just for residential

properties, but also for public buildings such as

schools and hospitals, as well as commercial

properties like hotels and shopping centres.

One of the key strengths of modular builds is the

speed of construction and arrival on site, which is

where EPDM membranes truly shine as they can

be fully adhered or mechanically fixed to the roof

deck offsite.

Requiring no torch or hot works of any kind during

installation, their cold-applied systems are very

useful within the factory environment – as

opposed to pitch roofs, which need to be installed

once the modular is in place, requiring additional

days and leaving the module temporarily open to

the elements.

On any site, once the EPDM roofing membrane

covers the deck, the roof is completely watertight.

As much detailing as possible is also carried out

in factory conditions. This minimises the

substrate’s exposure to dust, pollution, and

moisture – significantly reducing the risks

associated with external conditions.

EPDM membranes are strong

and flexible, with

excellent puncture

resistance,

ensuring a

resilient solution

within a busy

factory

environment.

Water-based

adhesives have also

been developed to

ensure the factory

installation process is safe and

virtually odourless, addressing the

management of volatile organic compounds

(VOCs) and solvents in a factory environment.

“While modular

construction may not

always be the right

choice for every

project, it is

increasingly being

considered as an

alternative”

More importantly, EPDM membranes are

completely aligned with modular building

concepts, allowing not only design flexibility but

also the possibility to adapt to future changes,

dismantle, re-use or relocate the building – even

decades after its initial construction.

If the building must be modified or relocated after a

long time, detailing and sealing the bay-to-bay joins

can be easily done, giving life once again to an old

material but performing like a new membrane. The

customer has the freedom to relocate and adapt the

building modules after construction – truly

contributing to circular economy.

Another consideration when creating modular

buildings is creating the structure using steel. Steelframed

buildings are fast, cost-efficient methods of

construction and have taken the market by storm in

recent years.

Contact Permaroof

01773 608839

www.permaroof.co.uk

@PermaroofUK

The buildings are

manufactured to last

utilising galvanised

steel, which is

one of the

strongest

materials

used in the

industry – with

the added

bonus of not

burning in a fire or

rotting and allowing

moisture to sink through.

As well as their strength, durability and how

quickly they can be constructed, some steelframed

buildings on the market are made from

60% recycled materials and fully recyclable when

they come to the end of their life, again, fitting

with the ideology of the circular economy.

Conclusion

While modular construction may not always be

the right choice for every project, it is increasingly

being considered as a potentially advantageous

alternative to conventional building

methodologies, meeting market demands as well

as the challenges posed by sustainable building

practices.

And as the largest contributor of waste,

construction is a key industry in moving towards

a more sustainable model of re-use, recycling

and zero waste.

This is why it is so important that building

product manufacturers work together with the

modular sector to ensure the buildability and

performance profiles of their products meet the

requirements of modular buildings, bringing more

flexibility to this growing trend and supporting

circular construction practices.

42 TC MAY 2021


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MAY 2021 TC 43


Roofing Updates

For further info on all these updates and more, visit www.total-contractor.co.uk

MARKET INSIGHTS DRIVE KLOBER

Based on recent customer insights and home

improvement trends, Klober has revealed a

number of range extensions to offer its

distributors and contractors more choice, with

more developments to follow later this year.

fluctuations and weather

conditions continue to

compromise traditional sand and

cement mortar methods to fix

ridge and hip tiles, sales of dry

support tray, and roll out rafter

tray must work together. This new

option offers an economic

solution by providing all the

necessary components required

ridge systems continue to soar.

in one pack.

Distributors and contractors can now benefit from

As such, Klober has extended its

the new range extensions which include Klober’s

Pauline Manley, Marketing

portfolio with the addition of its

new Secret Gutter, a 6m Dry Ridge Kit (pictured),

Director at Klober, said:

6m Dry Ridge Kit, well-suited to

and an updated 3-in-1 Eaves Ventilation Pack.

“Customer insights are really important to us and

clay and concrete applications, which comes in

With the race for space being a number one home

every year we make sure we’re investing in the

black and is perforated for ventilation. This is an

improvement trend for 2021, Klober anticipates an

solutions that are going to make their lives easier.

entry level product to sit alongside Klober’s

increase in demand for suitable roofing products.

It’s especially important to us that we are offering

premium roll fix brand.

Klober’s new GRP Secret Gutter joins the existing

our customers choice to suit their exact

PVC version, and is well-suited for dormer

conversions due to its ability to provide a

secondary line of defence against wind driven rain

at wall abutments. It is a high-performance

continuous abutment soaker typically used with

flat interlocking tiles. Also, as temperature

Finally, in response to demand for more solutions

that are quick and easy to install, Klober has

expanded its eaves ventilation offering by offering

more sizes of its 3-in-1 Eaves Vent Pack.

According to Klober’s technical team, for eaves

ventilation to be effective, the fascia vent, felt

specifications. All three of these latest range

extensions answer a specific customer challenge

or industry trend. And it doesn’t end there as we

have more to come later in the year so watch this

space!”

www.klober.co.uk

TOP PROJECT FOR GREENOUGH

Greenough & Sons Roofing Contractors has been appointed to deliver a £1.5m contract to reroof

part of Manchester Town Hall by lead contractor LendLease, following a competitive tender.

The win represents the largest single project in the Anglesey, North Wales-based family owned

business’s fifty year history, and will be delivered as part of the far-reaching restoration of the historic

Grade One listed building. The ‘Phase One’ roofing contract will include removing and replacing 2,800m²

of Cumbrian roof slate, as well as updating the roof timbers, replacing 65 tonnes of leadwork and

refurbishing glazed skylights. The slate will be sourced from the same Burlington slate quarry that was used in the original build some 150 years ago,

while the old lead work will be melted down and reincorporated into the building restoration.

The company aims to start site work on the 62 week programme in Autumn 2021, and will also explore and deliver ways to share its unique roofing skills

with the local community and heritage enthusiasts. The project is yet further recognition of the business’s reputation for delivering historically sensitive

heritage roofing projects across Wales and the North West of England. This includes a major contribution to the restoration of Chester Town Hall

(completed in 2011), which like Manchester Town Hall is built in the celebrated Gothic Revival style.

The company also recently completed a large heritage roofing contract on the National Library of Wales in Aberystwyth. Greenough & Sons Director

Jonathan Greenough said: “This is tremendous win for the company in what is a special year as we mark our 50th year as a company. Our growing

success in the heritage market has, over the years, been inextricably linked to our unique knowledge and skill with Welsh Slate. But a contract of this

size, complexity and character demonstrates how we have evolved as a business.

He continued: “The contract is also a further tribute to David Greenough, my father and company founder, who sadly passed away in May 2020 aged 78.

It’s very fitting that the company’s highest profile project to date should be so close to his childhood home in Swinton, Salford.”

www.greenoughroofing.com

44 TC MAY 2021


STAY SAFE

with GRP rooflights from Filon

Safety is at the front and centre of our product policy:

Our technical expertise has contributed directly to UK rooflight non-fragility classification

over decades, with Filon personnel playing key safety roles in influential trade associations

including NARM (National Association of Rooflight Manufacturers) and ACR (Advisory

Committee for Roofsafety).

Our unique, patented Fixsafe system is the only solution that allows profiled rooflights to be

safely installed from within the building envelope, without the need to access fragile roof areas.

We offer a range of fire grades to provide compliance with Building Regulations.

Our Supasafe triple reinforced rooflights provide high impact resistance, spanning and

load-bearing capabilities.

We’re the UK’s longest established manufacturer of profiled rooflights by continuous process,

with a successful track record of excellence in design, product performance and customer

support. As you’d expect, we’re also currently employing Covid-secure working practices

throughout our operations.

Filon: truly a ‘safe pair of hands’ for specifiers.

Telephone 01543 687300 Email: sales@filon.co.uk

www.filon.co.uk


Roofing Updates

An extensive portfolio of professional sealants

and adhesives, the Trade Mate range was

created to provide a go-to solution to tackle

every challenge a tradesperson might

encounter on site, including a number of

products for roofing applications.

A mainstay of Geocel’s product line up for more

than two decades, Geocel says the primary aim

of the comprehensive Trade Mate range is to

offer easier product selection for users. Each of

the 23 products have been specifically

formulated to provide a sealant or adhesive that

For further info on all these updates and more, visit www.total-contractor.co.uk

TRADE MATE RANGE REVAMPED

enables the best possible finish, every time.

With its new premium packaging, each product’s

intended application has been accentuated to

make it even easier to quickly identify on shelf

the ideal solution for the required job.

The range includes sealants specifically for

roofing applications, such as the Lead and Gutter

Seal, Roofers Seal and All Weather Seal.

On the relaunch, Andy Cummins, Senior Product

Manager at Geocel, commented: “By refreshing

SIKABIT MEETS SHOOL REQUIREMENTS

LOREM roofers IPSUM to find DOLOR sealants and SIT adhesives AMET,

specifically formulated for the required

CONSECTETUR ADIPISCING ELIT

SED DO EIUSMOD TEMPOR

our range of high-quality products they can now www.geocel.co.uk

be quickly identified on shelf, making it easier for

application – to ensure they always get the very

best results.”

The roof refurbishment of Portland School, Birkenhead was completed to the highest standards of safety

and without disruption to school activities, thanks to the combined efforts of Holloway Cook Associates

and Sika’s specialist Roof Refurbishment team.

The main school building has had many additions over time, resulting in 24 roof areas at varying levels and with

various roof build-ups. The whole of this 1600m² roof was in need of refurbishment as part of a programme of maintenance and upgrades following the

school’s transition to academy status. The Co-op Academy Trust developed a specification requirement for the project which included the use of a bituminous

system with an extended service life. The SikaBit 25-year system was selected from Sika’s wide portfolio of roofing systems as an ideal solution for this

application. Safety precautions were paramount due to the live school environment. Working with a roofing provider that could offer a Safe2Torch system with

self-adhesive membranes for torch-free zones was imperative. Sika’s Roof Refurbishment team was able to do a full site survey and provide a Safe2Torch

plan for the installation. Roofing contractor Holloway Cook Associates took on the role of principal contractor, including design, health and safety and

installation within a turnkey package. The quality and durability of the finish was also a key requirement of the project. The SikaBit system, combined with the

skills and experience of the team at Holloway Cook, answered this need with neat detailing across all roof areas. www.sika.co.uk/roofing

RAINCLEAR’S NEW ADJUSTABLE OFFSET

Rainclear Systems has introduced a new 2-part, adjustable offset to the Infinity Galvanised Steel and Colour

Coated Galvanised Steel range, which is available to buy online at www.rainclear.co.uk.

Danny Norris, Sales and Customer Services Executive at Rainclear Systems, explained: “Until now, the only way

to create an offset in the Galv Steel and Colour Coated Galv Steel downpipes was: 1. Using the 60mm fixed offset

Rainclear has added a new adjustable offset

(for example: GST80OS60) for up to a 60mm projection; 2. Using 2no. 70 Degree Bends together for up to a 210-

to its Galvanised Steel Range.

255mm projection depending on the diameter of the pipe (and a 240mm drop); 3. Using 2no. 70 Degree Bends

along with a cut down length of pipe in between – with some of the 3mtre length of downpipe going to waste if it couldn’t be put to use elsewhere.

“Rainclear have worked with the manufacturers to create a 2-part, adjustable Offset – in Galvanised Steel and currently in 4 of the 7 Robust Coated

Galvanised steel colours we stock, in the 80mm and 100mm diameter pipes – to add a solution for offsets of up to 700m. With this new 4th option there

is no need to cut into a full 3mtre pipe length.”

Find out more at: www.rainclear.co.uk

46 TC MAY 2021


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MAY 2021 TC 47


Cover Story: A. Proctor Group

CLT SOLUTIONS FROM A. PROCTOR

The experts at A. Proctor Group discuss the issues around moisture management when

utilising Cross Laminated Timber construction.

CLT (Cross Laminated Timber) is growing in

popularity and can offer many advantages

as a sustainable energy efficient building

method. It has been used in many construction

projects, predominantly within the commercial

sector such as schools and hospitals.

CLT is an engineered timber product produced in

a controlled factory environment from sustainably

sourced timber. It is formed of kiln-dried spruce

or pine boards which are laid on top of

each other at 90° – three, five,

seven or nine layers

depending on structural

requirements – and

then coated with a

layer of adhesive and

subjected to

immense hydraulic pressure to

create large, stiff, dimensionally

stable panels. Often referred to as

‘Super Plywood’, CLT offers high

strength and the structural simplicity

needed for cost-effective buildings,

as well as a lighter environmental

footprint than concrete or steel. It

also provides numerous other

benefits, including quicker

installation, reduced

waste, improved

thermal

Above: Fig. 1: External walls

(warm wall construction –

breathable insulation)

Service Class 1 for both sides

of the CLT.

1. Cladding spaced off the

insulation; 2. Drained and

ventilated cavity;

3. Reflectashield TF 0.81;

4. Breathable thermal

insulation; 5. Wraptite; 6. CLT;

7. Procheck Adapt (if required

ponding hygrothermal checks);

8. Optional drylining and

battened service zone.

performance and design versatility.

The STA have recognised this and

produced a comprehensive

document in March 2017 - The STA

Advice Note 14, Robustness of CLT

structures. This document provides

good practice guidance for the

design, detailing and installation of

CLT building structures. A critical

element to their successful use is to

ensure good moisture management,

as whilst the system is robust, poor

installation can let the design down.

Fig. 1(Above produced by STA)

shows how a CLT structure is built

up with the correct installation of


insulation on the outside of the frame. The CLT

should always be on the warm side of the

insulation to avoid unnecessary moisture

fluctuations which also brings the added benefit

of mitigating any potential cold bridging issues,

as they are adequately catered for with the

external envelope of continuous insulation. It is

preferable for this insulation to be moisture open

to allow the wall to breathe and reduce the risk of

built-up moisture within the envelope. The cavity

provides extra protection throughout the life of the

building. The STA produced further guidance in

January this year (Laminate/Mass timber

structures- Durability by Design Technical Note

23). This note concludes with some best practice

advice which includes the following:

• Ensure the external wall make up allows for

vapour diffusion from the interior to exterior

vented spaces (BS 5250 Standard to be

referenced and followed in a design)

• Air leakage control membranes and sealants

checked to avoid moisture vapour traps

• Thermal Insulation should be placed on the

exterior side of the laminated mass timber

panels.

BS 5250 gives good guidance in the moisture

management of CLT structures. This advice

incorporates many of the above principles and

the placement of membranes to reduce the risk of

damaging moisture issues.

The A. Proctor Group provides a self-adhered,

vapour permeable, air tight “breather membrane”

that can be installed either behind or in front of

the insulation. This decision can be made

dependent upon the project location and works

programme for follow-on trades. In some

circumstances it may be appropriate to utilise the

membrane in both locations. Once Wraptite is

applied to the CLT on the outside, the envelope is

immediately protected from water ingress such

as rain during the construction, which may be

beneficial if the insulation is not to be installed

immediately. The unique properties of Wraptite

also provide the airtight line on the external side

of the CLT panels offering long-term protection

and less risk of damages to the airtight layer from

internal finishes. The high vapour permeability of

the Wraptite provides the “breathing wall” which

will help reduce any potential moisture build up

that may have happened during the build process

and wet trades.

As Wraptite is vapour permeable, it is moisture

neutral and protects the building from unwanted

moisture build up once it is occupied – such as

heating/everyday occupier activities. Its

characteristics therefore keep the envelope free

from the risks of interstitial condensation.

Once the insulation is installed, depending on its

type , it may be advisable to install a second

layer this time on the cold face (outside) of the

insulation, to avoid moisture pick up through the

insulation and potential loss of thermal

performance. This can include the use of a

reflective material to further enhance the thermal

performance of the structure, this time with APG

vapour permeable Reflectashield TF 0.81.

For any moisture concerns or questions, The A.

Proctor Group has years of experience in across

all areas of the building envelope, such as

pitched roofs, walls and floors. Our team of

technical experts at Head Office and external

Regional Technical Sales Managers are all very

well educated in the company’s HAMM (Heat Air

Moisture Movement) principles to ensure an

effective balance is reached, ensuring a healthy

building envelope.

Visit A. Proctor Group’s website where you can

find details on all APG solutions along with links

to our informative range of webinars.

Contact The A. Proctor Group

01250 872 261

www.proctorgroup.com

MAY 2021 TC 49


Fixings & Projects

CLADMASTER 2: FIXING SYSTEMS

In the second instalment of its CladMaster series of videos, Vivalda focuses on fixings and

Andy Thomas, Vivalda London’s Branch Manager, addresses the common mistakes made

when ordering fixings for cladding projects.

Vivalda Group, the UK’s largest independent

supplier of non-flammable cladding, has

unveiled the second video in its ‘CladMaster’

series designed to improve installers’ practical

understanding of cladding materials, fixing

systems and fire safety challenges.

The second video, entitled ‘Three things to get right

when specifying a fixing system’, looks at common

mistakes made by installers when ordering fixings

for cladding projects. Vivalda London’s Branch

Manager Andy Thomas, who is featured in the

video, said: “We often find that it’s the simplest of

oversights that can cause the biggest headaches

for installers. Three of the most common slip-ups

we see are; contractors failing to

order cladding and fixings at the

same time; ordering cheaper,

non-approved fixings and failing

to invest in the right tools to ensure

the fixings are properly installed.

“In our experience, getting these very simple

things right from the start of a project can save

huge amounts of time, money and risk. Poor

specification of fixings can even invalidate

warranties on the cladding installed. The Grenfell

tragedy should serve as a constant reminder how

materials must conform. Guesswork can be fatal.

Andy Thomas, Branch Manager,

Vivalda London.

“In the bigger scheme of things,

it’s easy to see how fixings

sometimes get overlooked, but in

practice they are a vital element of

the cladding system that accounts for a

large part of the budget. It’s just not worth trying

to cut corners where fixings are concerned and

we would encourage contractors to spend more

time ensuring that they have the right fixings and

tools specified for the job.”

View the video on www.roof-tube.co.uk

www.vivalda.co.uk

CLASSIC COPPER WRAP

Anew Pre-Prep school in Oxford has

become the latest educational facility to

feature innovative copper rainscreen

cladding panels from Proteus Facades.

Combining tradition with modernity, Proteus HR

TECU Classic Copper panels clad the entire exterior

façade of a new extension on Newton Lodge, a

historic building at Summer Fields Preparatory

Boarding and Day School in Summertown.

Newton Lodge is one of the oldest structures on

the 70-acre school site and was previously used

as a boarding house for pupils. The addition of

the new extension, alongside a complete

redevelopment inside and out, has transformed

the Lodge into the state-of-the-art ‘Summer

Fields Pre-Prep School’ for children aged four to

seven.

Proteus HR TECU Classic, a bright, shimmering,

multi-tonal ochre-red copper cladding that will

gradually fade over time to Verdigris green, was

installed by J & PW Developments. The copper

cladding wraps around the entire external façade

of the extension, developed by main contractor

Edgar Taylor.

Designer Oxford Architects specified the copper

rainscreen cladding – including pre-formed

corner panels, window reveals, heads, sills and

rooflines – to create a clean modern look. It is

envisaged that this innovative approach will both

contrast and complement the historical character

of the original Victorian-built Newton Lodge and

other buildings dotted throughout the school

grounds.

Proteus HR is an integrated modular rainscreen

panel system featuring an aluminium honeycomb

core, structurally bonded between two thin

gauges of lightweight metal skin. This creates a

lightweight, strong and versatile cladding system,

whilst the sheer, smooth aesthetic of the optically

Newton Lodge: Proteus Facades fabricated the entire copper

façade at its advanced manufacturing facility in Lancashire.

flat panels achieves pure architectural sightlines.

The honeycomb core also helps optimise the

gauge of copper skin, contributing to budget

expectations, and creating a rigid, slimline

cladding panel.

Inclusion of the Proteus HR slimline panels at

Summer Fields contributed to overall energy

efficiency by allowing incorporation of high levels

of insulation within the underlying structure,

whilst still maintaining the rear ventilated cavity.

The copper cladding also provides Summer Fields

with outstanding mechanical abrasion and

weather and corrosion resistance properties as

well as being maintenance free.

www.proteusfacades.com

50 TC MAY 2021


WHAT

DOES

YOUR

HOME

SAY

ABOUT

YOU?

SAY IT WITH

CARE

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SAY IT WITH

SUSTAINABILITY


Project Focus

A CLASS ACT CLADDING PROJECT

Total Contractor takes a look at the recent Ilkley Grammar School project which utilised

systems from Shackerley to help extend and enhance its facilities.

Ilkley Grammar School in Bradford, a high

school for students aged 11-18, is part of the

Moorlands Learning Trust. Set in beautiful

surroundings on the edge of Ilkley Moor, the

school has a traditional 19th century main

building, along with a host of enviable facilities,

including tennis courts, a drama studio and an

indoor swimming pool.

Bradford Council has invested in extending

capacity and enhancing facilities still further with

the construction of a new teaching block,

designed by Langtry Langton Architects. This

three-storey building comprises 15 English and

humanities classrooms, a new dining

hall, offices and toilets.

Part of the design brief required

a building sympathetic to the

local built environment in

Ilkley, which is characterised

by dark grey slate and creamcoloured

Yorkshire sandstone.

Shackerley’s SureClad Ceramic Granite

ventilated façade system in a natural creamybeige

honed LOPAR colourway and contrasting

Rio Black enabled the architectural team to

deliver a natural aesthetic in-keeping with the

local built environment, while offering

reduced structural loadings, cost

advantages and long-term

maintenance benefits.

SureClad Ceramic Granite

The new, stand-alone teaching

block is part of a wider build

programme at Ilkley Grammar

School to enable clusters of classrooms

by academic subject.

Tony Hubbard, from Langtry Langton Architects,

explained: “The challenge for the project was to

deliver the range, scale and layout

of facilities required to increase

the school’s student intake,

while providing a new building

that is both practical and

appropriate for the campus in

terms of materials, height and

style.

“Using local stone would have been the obvious

choice for the façade, but this not only had

implications for the cost of the stone but also for

the cost of the wider build, because of the

structural loading, lead times and build times

involved. We had never used

Shackerley’s SureClad Ceramic

Granite façade system before,

but it offered us an excellent

match for the aesthetic we

were trying to achieve, along

with significant cost savings on

the building structure and

buildability benefits.”

Low maintenance façade

Shackerley’s SureClad Ceramic Granite also

offers a low maintenance solution that retains its

high-quality appearance over time – even when

specified in pale colourways – thanks

to the impervious nature of the

material. Resistant to

discolouration due to U/V or

pollution, Shackerley’s

SureClad Ceramic Granite will

not be damaged by the effects

of freeze/thaw conditions and is

resistant to abrasion, graffiti and

algae growth. It is also certified as an A1 noncombustible

material to BS EN 13501-1.

To create contrast with the pale-coloured LOPAR

SureClad Ceramic Granite panels, Langtry

Images show Shackerley’s SureClad

Ceramic Granite ventilated façade

system which was used at Ilkley

Grammar School.

Langton Architects also

specified the Shackerley

SureClad system in Rio Black.

This colourway has been used to

create horizontal details at the top and

bottom of each elevation and for the window

reveals and soffits.

Tony Hubbard continued: “The Shackerley team

was very helpful and provided fully-mounted

samples to aid our product selection process.

Being able to specify both façade materials from

the same supplier and inspect the samples made

specification much easier.”

Ease of installation

The SureClad system was pre-fabricated as

installation-ready panels at Shackerley’s ISO

9001 accredited factory in Lancashire. Each fullytraceable

consignment was sent to site on a justin-time

basis, aligned to the installation schedule

of the cladding contractor, Specialist Cladding

Systems (SCS), part of CA Group.

Kevin Baynes, Project Manager at SCS

commented: “The lightweight SureClad panels

are not only ideal for a lighter structure but are

also much easier to handle on site. For this

project we used the SureClad Hang On system,

which was very easy to work with, and

Shackerley made it easy to identify each panel on

the installation schedule, which helped the

project run smoothly.”

Contact Shackerley

01257 273114

www.Shackerley.com

52 TC MAY 2021


Cladding & Sheeting Updates

SAFE SOLUTIONS

MechSlip, the innovative brick slip cladding Extremely lightweight, the mechanically fixed

system developed by Ibstock Kevington and brick slip system delivers all the benefits of a

Ash & Lacy, has been awarded BBA

natural clay brick but is more than 50% lighter

certification, incorporating a third-party than traditional masonry, reducing structural

assured A1 Fire Rating.

loads. What’s more, it is the first brick system to

use Ibstock Brick and contain no combustible

The certification is an important step forward for

parts – a key safety consideration.

the MechSlip solution, as it means it can be

specified and installed with confidence on highrise

residential buildings above 18 metres. The off-site and delivered to developments ready to

The system is also adaptable to being assembled

accreditation affords MechSlip compliance with install – an innovation that is both labour saving

Approved Document B of the Building

and cost effective.

Regulations, which addresses fire safety matters

Iain Durrant, Managing Director at Ibstock

within and around buildings.

Kevington, said: “The MechSlip system is the

Born out of a partnership between the UK’s result of prolonged investment and collaboration

largest brickwork special shape and masonry between Ibstock Kevington and Ash & Lacy, and

fabrication company, Ibstock Kevington, and Ash represents a game changing solution for

& Lacy, specialists in engineered building

architects and specifiers. Achieving BBA

envelope systems, MechSlip is totally unique to certification is a vital step forward for the

the UK market.

product. Stringently tested in a real world testing

MechSlip from Ibstock Kevington and Ash & Lacy.

environment, achieving one of the highest fire

safety ratings available means MechSlip can be

specified and installed with utmost confidence.”

Adam Taylor, Commercial Director at Ash & Lacy,

added: “Lightweight, easy-to-install, aesthetically

pleasing and rigorously tested, MechSlip

represents a total package solution for architects

and specifiers. The collaboration between Ibstock

Kevington and Ash & Lacy has enabled us to

combine our individual expertise to create a

cladding system that meets the exacting needs of

the architect and specifier of today.”

https://mechslip.co.uk

MAGPLY DELIVERS FOR FIRE SAFETY

Widely specified for its fire resistance and all round stability in the cladding build-up to

apartment blocks, as well as a render backer and sheathing board, IPP’s highly versatile Magply

boards have been employed by a regional developer as a fireproof sarking board beneath

traditional thatched roofing for a development in a beautiful Dorset village.

The 12mm thick version of the high performance MgO material was selected by Poole-based Charlew

Developments, to comply with the project architect’s performance specification for the solitary

thatched roof building on a nine house scheme in the village of Owermoigne, near Dorchester.

Backed by BDA Agrement certification, Magply MgO

boards present a fire-safe and environmentally friendly

alternative to conventional plywood or OSB products.

Reflecting an aesthetic ethos similar to that adopted for Prince Charles’ landmark Poundbury development on the outskirts of Dorchester, local planners

made the inclusion of a thatched property a stipulation of planning permission for the development and the exterior to the four bedroom dwelling also

includes panels of flint-work between the bands of handmade brick which form the window surrounds.

The thatch was installed by specialist roofing company RV Miller from Keynes Wareham in Dorset. The overall roof construction saw the 12mm Magply

boards being nailed down across the main rafters and covered by a breather membrane before battens were secured in the conventional manner,

running across the pitches. The authentic reed thatch was then laid up the pitch and shaped around the eyebrow dormers at the roof edge and verges.

The site agent for Charlew Developments, Jules Peach, commented: “The project architects, Anders Roberts, specified the use of a one hour fire

resisting board to be installed beneath the thatch covering. I researched a number of different board types before talking to our merchant, Travis

Perkins, which recommended the Magply product. We have found the boards very straightforward to cut and fix before covering them with the breather

membrane and battens.” www.magply.co.uk

54 TC MAY 2021


GREAT

PROFIT MARGINS

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PIR Insulation

A PIR-FECT FIT FOR FLAT ROOFS

Nigel Blacklock, of flat roofing specialists Bauder and vice-President of Insulation

Manufacturers Association, looks at the benefits of using a reliable, durable system

incorporating PIR insulation in flat roofing applications.

Roofs must offer year-round protection

against the elements, therefore insulation

that offers excellent thermal performance

and durability is absolutely crucial. Insulation

plays an important role in protecting the built

environment and helping buildings achieve the

net zero 2050 targets. PIR products offer the best

solution when it comes to selecting an insulant to

suit a range of building types and can be used in

flat, pitched and tapered roofs. PIR continues to

be the maintstay of flat roofing with around 70%

of flat roofs using this versatile insulation.

Thermal performance

As a result of its excellent thermal performance,

with a design lambda value typically as low as

0.022W/mK, PIR insulation offers one of the

thinnest methods of achieving the current U-

value requirements of Building Regulations and

Technical Standards – an essential characteristic

in the drive to reach net zero carbon goals in

2050.

Tapered insulation

Tapered roofs have become

increasingly popular but

provide their own unique

challenges. To maintain

thermal performance of a

heated building, BS 6229:2018

states the minimum U-value of

0.35W/m²K must be achieved at any point on the

roof. Whilst vacuum insulated panels (VIPs) are

very thin and offer excellent thermal performance,

they are very expensive and are used sparingly,

usually in conjunction with PIR. However, it is

possible to achieve this required minimum U-

value with PIR tapered from 60mm upwards, thus

demonstrating the design flexibility of the product

including an effective drainage scheme.

Strength and stability

Strength and stability is important to provide a

solid, stable substrate for the waterproofing.

PIR’s compressive strength and dimensional

Left: Nigel Blacklock of Bauder

and Vice President of the IMA.

stability is integral to its specification

for a range of flat roof applications

which means it is able to withstand

foot traffic; a major benefit in relation to

roof maintenance, as well as protecting the

waterproofing itself. Many common waterproofing

systems are bonded to the insulation so the

interlaminar strength of PIR adds to the overall

excellent performance of flat roofing systems

under wind loading.

All these characteristics provide the long term

and reliable performance that have become the

minimum expectation of a high performing flat

roof system.

All-round performer

PIR insulation is able to achieve the highest fire

classification of Broof(t4) when tested in

accordance with TS 1187 and classified to EN

13501-5.

In terms of performance, PIR is a true all-rounder.

As well as its key role in flat roofing it can be

used in all types of wall and floor projects too, as

its strength, durability and thermal performance

are important in creating healthy, comfortable

buildings. By helping to decrease the energy

consumption of such properties, PIR not only

plays a part in reducing household bills, it is

contributing to the cultivation of a built

environment that is just as remarkable for its

long-standing sustainability.

Contact IMA

www.insulationmanufacturers.org.uk

@IMA_Org

56 TC MAY 2021


Insulation solutions

for flat roofs

Recticel Insulation is an experienced flat roofing partner,

providing innovative and reliable insulation solutions for

flat roof applications.

Discover the ideal solution for your flat roof project at

recticelinsulation.co.uk


Fabric-First Approach

ACHIEVING AS-DESIGNED ENERGY

PERFORMANCE ON PROJECTS

By Simon Blackham, Technical Manager at Recticel Insulation.

get out of life what you put in’ is an

often repeated phrase which could just

‘You

as easily apply to building design. A

property’s energy performance is hugely

dependent on the quality of insulant materials

installed within walls, floors and roofs. It’s why

taking a fabric-first approach and prioritising the

composition of a building’s key structural

elements is seen as crucial to achieving a desired

level of sustainability.

Poorly-insulated homes not only prove costly to

the householder in terms of higher-than-average

fuel bills, but the environment also pays a price.

A report by the Institution of Engineering and

Technology (IET) and Nottingham Trent University

revealed that energy use in UK homes accounts

for about 20% of UK greenhouse gas emissions,

three-quarters of which derives from heating and

hot water. A reduction in this figure will be among

measures needed to be taken if the UK’s

government pledge for carbon neutrality by 2050

is to become reality.

Building priorities

When it comes to a building’s

design, prioritising the fabric,

including the structure of

walls, floors and roofs, will

ensure a property – if built and

insulated correctly – will have an

increased capability to perform as

intended.

The fabric-first process enables homes to achieve

lower U-values and improved airtightness without

the need to install renewable technologies such

as air source heart pumps and biomass boilers –

equipment that can be costly and complicated to

maintain and operate. This fabric-led approach

also means a home’s thermal efficiency can be

significantly improved without radically rethinking

the way the building itself is designed and

constructed.

A key part of achieving this fabric-first approach

is through the correct specification of materials

and understanding how materials perform with

each other i.e. as a system.

Furthermore, manufacturers are

continually looking at ways to

improve buildability through

products that offer simpler and

more reliable methods of

installation to aid contractors and

ensure buildings are built asdesigned.

Benefits of PIR

One example of innovation designed to aid

building is the development of polyisocyanurate

(PIR) insulation, which is rapidly becoming the

go-to solution for specifiers in search of a more

reliable, durable and sustainable alternative to

mineral or glass wool. The panels satisfy two vital

factors for designing effective insulation solutions

for new, as well as existing buildings: low thermal

conductivity and durable performance. Such

properties are a prerequisite for ensuring homes

perform as designed and in the long-term,

creating healthy, comfortable interiors which are

cost-effective to maintain.

With lambda values as low as 0.022 W/mK, PIR

insulation panels provide excellent performance.

This, coupled with their slim composition, means

they require less space to achieve the same U-

value as other insulation materials. For mineral

wool to attain the same level of thermal

performance as a PIR panel such as Recticel’s

flagship full-fill cavity wall product Eurowall+ –

which helps to achieve a 0.18 U-value with a

90mm-thick panel in a 100mm cavity – a much

thicker insulation and overall wall width would be

required. Once the cavity width grows, wall-tie

lengths have to be increased and window and

door lintels expanded. The whole building process

becomes more expansive and costly, as original

58 TC MAY 2021


(QUITE INTERESTING)

INSULATION FA

ACTS

By QI (Quantum Insulation Ltd)

designs and the property’s overall thermal performance risk being

compromised.

PIR’s structural strength also enables a consistent performance that will

last for generations; negating costly repairs and maintaining its thermal

qualities. PIR insulation is also renowned for its adaptability. It is the ideal

solution for a range of applications such as floors, walls, pitched and flat

roofing.

Innovations, such as the tongue and groove joint which features on all four

sides of Eurowall+, have helped further establish PIR performance levels.

The 10mm air gap, which is created by a 90mm Eurowall+ PIR board

achieving a U-value of 0.18 W/m²K in a traditional 100mm masonry cavity

wall, makes for a more convenient fit for bricklayers when it comes to

installing the insulation. This approach to recording lower U-values while

maintaining traditional cavity widths and ensuring build quality means asdesigned

can be achieved.

Future comforts

Fabric-first involves taking a reassuringly back-to-basics approach to

building design. It provides a solid foundation for achieving thermal

performance that is optimal and consistent. Specifying first-rate insulants

for a property’s structural framework will significantly reduce the risk of a

second-rate outcome in terms of its sustainability. Such considerations are

vital if we are intent on reducing the built environment’s carbon footprint for

the safety and comfort of future generations.

BBA

Building Bulletin 4,

what is it and what’s changed?





















































Guidelines for Eur opean Technical

Appr

oval of Inverted R

oof

Insulation Kits

Part 1: General



So, what has changed in the decade since this IB No 4 was originally

published?

Drainage


































Zero pitch roofs































U-value corrections







































https://www.quantuminsulation.com/downloads/

Next month’s QI by QI – ‘What are the impacts of

multi-layer insulatio on

in an inverted roof

oof?’

Contact Recticel

www.recticelinsulation.com/en-gb/

@RecticelInsulUK

MAY 2021 TC 59


All You Need to Know About:

WATER FLOW REDUCING LAYERS...

In the first of a new series of articles from Polyfoam XPS, Rob Firman (pictured) looks at

water flow reducing layers (WFRLs) – an essential part of inverted flat roof construction.

Designers and installers of flat roofing solutions are often expected to be experts in the products

they’re using, as well as how to use them. Such expectations can be unrealistic when the

marketplace is full of conflicting advice concerning what you ‘should’ know about every available

system or component. In this new series of articles, I will look at the different parts of flat roofing design

and construction and explain what contractors need to know. This month, I will focus on water

flow reducing layers (WFRLs), which are an essential part of inverted flat roof construction...

What is the role of a WFRL on an

inverted roof?

An inverted flat roof features the waterproofing

layer installed directly on the structural deck.

Above the waterproofed deck, an inverted roof

system, or ‘kit’, is loose laid and secured by

ballast. The system is a combination of thermal

insulation and a membrane, called a water flow

reducing layer. The ballast is typically gravel or

paving slabs.

This arrangement allows a roof to be waterproofed

sooner and protects the waterproofing layer from

UV exposure and freeze thaw actions.

Why is it important to install a WFRL

correctly?

Because of the location of the waterproofing

below the thermal insulation, WFRLs were

developed as a way to limit the ingress of

moisture into inverted roof systems.

The membrane is loose laid over the thermal

insulation layer and acts as a barrier to

significantly reduce the volume of rainwater

reaching the waterproofing.

The WFRL is not a waterproof layer and no

standards or guidance relating to inverted roofs

suggest otherwise. Some moisture is still

expected to reach the waterproofing layer and

relevant corrections are applied to U-value

calculations accordingly.

If you have to obtain U-value calculations for an

inverted roof construction, there are two

adjustments that should be applied:

• The thermal conductivity of the

insulation should be adjusted by a

moisture correction factor.

• A rainwater cooling correction should

be applied to the whole calculation to give the

final U-value.

Both adjustments are important, but the accuracy

of the rainwater cooling correction is particularly

dependent on a high quality WFRL installation being

achieved on site. A poorly installed WFRL, or no

WFRL at all, would lead to a much greater level of

rainwater cooling occurring on the completed roof.

How should a WFRL be installed?

The structural roof deck should be fully

waterproofed in accordance with the

manufacturer’s design guidance and details.

Insulation suitable for inverted roof applications –

such as extruded polystyrene (XPS) – should then

be loose laid in a brick bond pattern, again in

accordance with instructions and details provided.

A summary of WFRL installation:

• Lay the WFRL over the roof insulation at right

angles to the slope of the roof.

• Make sure all side and end overlaps are a

minimum of 300mm, and that end overlaps are in

the direction of the downward slope.

• Turn up the membrane at upstands and

penetrations so it finishes above the surface of

the ballast.

• As both the insulation and the WFRL are loose

“WFRLs were developed

as a way to limit the

ingress of moisture

into inverted roof

systems”

laid, it is recommended to install

only as much of the system as can

be ballasted at the time. Further

guidance is available in LRWA

Guidance Note 14.

What are common issues with WFRL

installation?

BS 6229:2018 refers to post-construction damage

as being one cause of poor WFRL performance, so

another reason for laying ballast on an advancing

front is to protect the membrane from site traffic

as materials are moved across the roof.

Correct drainage and roof falls are a topic for

discussion all on their own, but they are critical to

the success of a WFRL installation. Back falls

should never be allowed to occur on a roof, and

are a potential reason for worse than expected

performance of a WFRL. If a back fall causes

rainwater flow across the roof in the opposite

direction to the intended fall, it may flow under an

end lap.

Because a WFRL is an effective barrier to

rainwater, but not waterproof, the inverted roof

should be designed with dual-level drainage.

Rainwater outlets are detailed to drain at both

WFRL level and waterproofing level, and should

be installed accordingly. Part of that correct

installation is ensuring that the WFRL is turned

down at outlets.

Contact Polyfoam XPS

www.polyfoamxps.co.uk

@PolyfoamXPS

60 TC MAY 2021


NON-COMBUSTIBL E EXTERNAL UPSTA

AND BOARD

ROCKFACE A2

www.q

uantuminsulation.com

A2

MAY 2021 TC 61


Tapered Falls & Gutter Details:

MAINTAINING CONSISTENT

INSULATION PERFORMANCE

Designing tapered falls within flat roof insulation simplifies rainwater management and

offers advantages during the construction process, but there are additional considerations

when it comes to performance. Will Wigfield, Product Manager – Building Envelope,

ROCKWOOL UK, explores the benefits of tapered falls and how designers can maintain

consistent insulation performance across a flat roof while accounting for varying

insulation thickness.

Designing tapered falls is one of the most

common rainwater management strategies

for flat roofs, as the gradient ensures

water channelling towards gutter details and

ultimately helps to avoid ‘ponding’ on the roof.

Ponding can accelerate the degradation of roofing

materials, contribute stress to load bearing

elements and even encourage the growth of moss

and algae – making the reduced drying times

offered by tapered falls even more attractive.

During construction, creating the fall and

installing insulation can be achieved in a single

operation by specifying a tapered insulation

system. This helps simplify installation, reduce

site traffic and even cut down on costs.

Key considerations for insulating

tapered falls

Flat roofs featuring tapered falls must achieve

compliance with building regulations including

Approved Document B (ADB) and relevant sectorspecific

guidelines such as BB93 for education,

but there are also key considerations pertaining

specifically to tapered falls.

BS 6229:2018, ‘Flat roofs with continuously

supported flexible waterproof coverings – Code of

practice’ specifies that tapered falls should be

“designed with a fall of 1:40 to ensure finished

drainage falls of 1:80 are achieved”. This means

that insulation thickness will vary across the roof

to maintain the fall, making it more difficult for

designers to ensure that the roof meets the

designated thermal requirements.

As per BS 6229:2018, the roofs of heated

buildings “must be insulated to provide a U-value

that does not exceed 0.35 W/m²K at any point” –

a key consideration at gutter details, where

insulation will typically be at its thinnest.

Designers must then calculate the overall U-value

of the roof factoring in these gutter details as well

as the tapered fall, which is not a case of simply

averaging the insulation thickness across the

roof.

The correct method is given in Annex E of BS EN

ISO 6946, ‘Building components and building


“When designing

tapered falls, the

impact of varying

insulation thickness on

acoustic performance

must be taken into

account”

elements – Thermal resistance and thermal

transmittance – Calculation methods’. This

method accounts for varying insulation thickness

by using an area-weighted average of the

corresponding thermal performance to

accurately calculate the overall U-

value across the roof.

BS 6229:2018 and BS

8233:2014, ‘Guidance on

sound insulation and

noise reduction for

buildings’, also refer to the

acoustic requirements of flat

roofs. When designing tapered

falls, the impact of varying

insulation thickness on acoustic

performance must be taken into account, and

designers may require insulation that delivers

excellent acoustic performance to meet their

targets.

Managing interfaces between tapered

falls and gutter details

Forming tapered falls with a 1:40 gradient

contributes to water flow towards rainwater

outlets, but gutter details also introduce

insulation considerations. The insulation layer

within a gutter detail will usually be thinner than

most of the flat roof in order to maintain the

gradient required for drainage – and this must be

accounted for when determining the thermal

performance of the roof system as a whole.

In fact, thermal targets are especially relevant at

gutter details where rainwater is concerned, as

there is increased risk of condensation. The 0.35

W/m²K maximum U-value stated in BS

6229:2018 is in place

to avoid or reduce risk

of condensation, and

the document goes on

to state that care should

be taken to ensure

continuity of insulation at

junctions and penetrations.

Maintaining thermal performance via Annex E

calculations and continuous insulation will help

designers to address condensation – but

condensation is not the only risk associated with

flat roofs…

Flat roofs and fire risk

Whether used as a means of escape or a place of

refuge, flat roofs are a key part of a building’s fire

safety strategy. But while the combustible

cladding ban can extend to prohibit combustible

materials on upstands, balconies and terraces, it

stops short of requiring all areas of roof insulation

to be non-combustible. Given the absence of an

outright ban, designers must ensure that they are

familiar with the relevant standards for flat roofs.

Of particular importance are junction details

between the roof and compartment walls, as

covered in ADB Volume 2 Section 8.26. It is

essential that fire cannot spread via the roof

build-up, bypassing compartmentation to enter

new zones – nor go on to take hold within the roof

structure itself.

With all this in mind, there is an increasingly

common trend among designers to use noncombustible

insulation across the whole roof. This

avoids complicated zoning concerns and

streamlines the installation process – which is

especially valuable where contractors will already

be working around tapered falls.

Using non-combustible insulation materials is not

just a best-practice measure for ensuring

effective risk management in today’s market, it

also serves to futureproof buildings and

specifications against changing client demands

and an evolving regulatory landscape.

To support flat roof specification and installation,

ROCKWOOL has launched a new Flat Roof

Resource Hub which brings together all the key

information and resources that roofing

stakeholders may need – saving time and

simplifying flat roof design.

Contact ROCKWOOL UK

www.rockwool.com/uk/flat-roof-hub/

@ROCKWOOLUK

MAY 2021 TC 63


Insulation Updates

For further info on all these updates and more, visit www.total-contractor.co.uk

KNAUF KEY TO DELIVERY

Four years ago, sustainable developer Citu System to install Supafil Frame – a high

set out to create homes 10 times more energy performance, non-combustible blowing wool.

efficient than typical UK houses. To do this,

Supafil Blowing Wool lends itself to offsite

the company invested in a state-of-the-art

production because it completely fills the cavity,

production facility where all the components

without any voids even around complex

for its properties are built offsite.

penetrations – something that can occur when

Thermal performance is critical to energy

insulation slabs or rolls are cut to size. It is also

efficiency. Citu wanted to go far beyond the a dry process, so operatives are not exposed to

regulations to achieve wall build-ups with an any harmful chemicals and it doesn’t require a

extremely low U-value of just 0.10W/m²K. This is dedicated production line.

at least three times better than the U-value

Instead, the system comprises a blowing

achieved in most new build homes and fifteen

machine and a filling plate. The system is

times better than older houses.

modular allowing for phased investment. Citu

Citu turned to Knauf Insulation for advice and opted to install the blowing machine in phase

support in developing the offsite capability one, which allowed them to manually fill the

required for this level of thermal performance. panels. Phase two saw the addition of the

Knauf Insulation’s Technical Support Team blowing plate, semi-automating the process.

undertook extensive calculations and

Supafil Frame can be run by a single operator,

recommended the Blowing Plate Insulation

Knauf Insulation’s Blowing Plate Insulation System ensures

that cavities are filled to the correct thickness.

fits easily into the existing production line, and

can even be moved quickly and swiftly to other

areas in the manufacturing facility depending on

Citu’s volume capacity requirements.

Knauf Insulation’s Technical Support Team

provided full training and support during each

phase of installation.

www.knaufinsulation.com

STO PRODUCTS USED IN EDINBURGH’S OLD TOWN

StoTherm Mineral insulation and StoSilco render were used to provide outstanding thermal performance on the

recently completed Peveril Securities King’s Stables Road mixed-use development in Edinburgh’s city centre. This

project illustrates Sto’s ability to work closely with specifiers, contractors and clients to ensure that the most

appropriate solution was chosen for this project.

Located in the Edinburgh Old Town’s historic Grassmarket area, the £40M King’s Stables Road development is a landmark

scheme delivering housing, premium student accommodation, a 4-star apart-hotel and various commercial units, set

around a number of public courtyards. “This was a large project for which a rainscreen cladding system was originally

considered,” said Sto’s Project Manager, Jim Reid. “However, budget constraints meant that an alternative solution was

required. The façades of the buildings feature numerous multi-level surfaces, and any alternative solution had to be able to

accommodate these and various other complex detailing requirements, while still meeting the budgetary requirements.”

Pic: Paul Zanre Photography.

Sto successfully worked in partnership with project architects, Fletcher Joseph Associates, and façade specialists AFS (Scotland) who installed the

StoTherm Mineral system. The result was a fully bespoke insulation system which satisfied all the project requirements. The mineral-fibre insulation

boards used in the StoTherm system provide excellent thermal performance along with unrivalled fire protection, great durability and impressive sound

insulation. The system’s efficient single-leaf construction does not reduce interior space and requires no additional expansion joints. This allowed the

smooth external surfaces which are used in the King’s Stables Road design to be created. Some sections of the development used Sto’s unique Sto-

Rotofix Plus adjustable spiral fixings to secure the insulation boards to the substrate.

“We’ve used Sto’s external wall insulation on many previous projects and find that it performs extremely well,” commented Steve Avery of AFS

(Scotland). “The StoTherm system is very straightforward to install, but still provides a high degree of flexibility which makes it a very practical

solution.” www.sto.co.uk

64 TC MAY 2021


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Insulation Updates

ISOGARD HD GROWTH

For further info on all these updates and more, visit www.total-contractor.co.uk

Permaroof has added Firestone ISOGARD HD for the insulation material in the UK.

to its growing portfolio of building products – Manufactured with a 100% fibreglass, mould,

making the innovative and environmentallyfriendly

polyiso board more widely available performing product – which adds structural

and moisture-resistant facer, the high-

to the UK market.

strength to an entire roofing system and helps to

absorb the effects of hail, foot traffic and other Adrian Buttress, MD at Permaroof, said: “When

Firestone ISOGARD HD – a 12.7mm thick polyiso

potentially damaging impacts – works to

foot traffic on a roof is heavy, mineral wood

board that has been designed for use as a cover

minimise energy use and reduce waste, helping boards run the risk of being crushed or, in the

board – launched in the US in 2017 and until

to ensure a healthy environment for current and case of plastic foam insulations, the adhesion of

now, had been sold in the UK on a low key,

future generations. It is also easy to cut and the facer to the foam can be affected. The

project-by-project basis. Permaroof has already

handle for quick installation around roofing Firestone ISOGARD HD cover board spreads the

sold more than 3,000m² of the product on a very

details such as drains or other penetrations, load and protects the boards underneath.”

low-key pilot scheme – showing a high demand

reducing installation time and labour costs. www.permaroof.co.uk

FUNDING BOOST FOR YBS INSULATION

Insulation manufacturer YBS Insulation has received a £250,000 loan to progress its growth plans.

YBS secured the finance from the Midlands Engine Investment Fund East & South East Midlands Debt Finance

Fund, managed by Maven Capital Partners. The business, based in Creswell, Derbyshire, will use the funding to

invest in new production machinery to increase its output capacity, as well as strengthening its sales and

Above: Simon Sharkey, YBS Insulation.

marketing function. The deal will help YBS continue to generate new business opportunities by enhancing its digital

presence, improving its e-platform and growing its social media presence. YBS specialises in producing building

insulation products for private homes and the construction sector such as multi-foil insulation, bubble laminates, cavity closers and foil membranes.

Simon Sharkey, Managing Director at YBS, commented: “This marks another exciting milestone for YBS as we look to continuously improve our customer

offering though new product developments and improved efficiency. We have significantly advanced the business over recent years, but this will provide

the investment to really accelerate our plans. Jonathan and Maven have been instrumental in securing this investment and we at YBS are looking

forward to building on this relationship.’’ www.ybsinsulation.com / www.mavencp.com

ROCKWOOL: ‘USE LESS, GREEN THE REST’ WORKS BEST

Trucost, part of S&P Global, has classified all ROCKWOOL Group products as having a positive impact on the UN Sustainable Development

Goals, while the company has met or exceeded two of its six sustainability targets ahead of time.

As governments and societies continue to grapple with the COVID-19 pandemic, greening the economic recovery takes on even greater significance.

ROCKWOOL Group’s Sustainability Report 2020 details the contribution the company’s product makes toward this goal, including updates on operational

improvements and progress on supporting the UN Sustainable Development Goals. Reducing energy and resource consumption is essential to

addressing the global climate challenge, and ROCKWOOL products play a key role. “Saving energy first and then using renewables is the most costeffective

way of decarbonising society. That is why we continue saying the best approach is to ‘use less and green the rest’”, commented ROCKWOOL

CEO Jens Birgersson. Jens Birgersson continued: “We are proud that S&P Global Trucost has again classified all our products as SDG positive, meaning

they have a positive impact on reaching the UN Sustainable Development Goals. Sustainability is at the core of our business, and we pursue a factbased

and auditable approach to document how we maximise our products’ impact and minimise the impact of our operations.” Notably, the S&P Global

Trucost organisation has assessed more than 15,000 companies globally and finds that ROCKWOOL is among top 10 when it comes to the positive

impact from its products. www.rockwool.com/uk/

66 TC MAY 2021


Article

Safety Products

A SHARPER FOCUS ON EYE SAFETY

AND FACE PROTECTION PRODUCTS

From the experts at Hultafors Group UK and Hellberg Safety...

Face Protection products, such as safety

glasses, masks and visors, have all been

brought into much sharper focus during the

Covid-19 pandemic. They’re all critical

components in the PPE framework that ensures

wellbeing and safety at work.

In business and industrial environments, the use

of Face Protection products should be second

nature. But believe it or not, a recent report

showed that many men are now more concerned

about face masks of the cosmetic kind than

personal safety and protection on site.

A poll of 1,000 people found that British males

spend an average £760-a-year on ‘essentials’ to

keep their skin in tip-top condition. That’s

probably far more than a single person would

spend on PPE in a year. What’s more it’s

estimated that the UK market for men’s face care

products is worth over £77 million a year!

But anti-wrinkle creams, facial washes, scrubs

and face masks will hardly provide proper

protection of vital facial features when working in

hazardous environments. Sadly, accidents

happen all the time, sometimes in the most

innocuous situations that we might ordinarily take

for granted – like strimming the garden, jet

washing the patio, cutting wood or drilling a wall.

Perhaps unsurprisingly, industrial and

construction-related work has a much higher rate

of facial injuries than any other with hazards many

and varied. Impact injuries can be caused by flying

objects such as stone or brick fragments, particles

of dirt and dust, tiny pieces of metal and splinters

caused by hammering, chipping, grinding,

machining, wood working, sawing, and drilling.

Chemicals and extreme heat sources are also

dangerous to the face. Splashes, fumes, vapours

and irritating mists can scald and burn while

welding arcs, UV radiation and intense light can

damage your eyes. The consequences of facial

injuries are serious, potentially life-threatening. Not

just time off work and loss of pay as a result of short

or long-term injuries, there’s the potential for

something more significant. An injury can cause a

lifetime of permanent disfigurement, even loss of

sight. Surely that’s a good enough reason for using

proper eye and face protection products all the time?

That said, some people will always find a reason

not to. Cheap face protection products are

‘uncool’, they ‘fog up’ and are often unwearable

because pressure, pinching and slipping points

are a nightmare for users, and the PPE ends up

on top of workers’ heads or in their pockets

instead of over their eyes.

What to look for in the best safety eyewear

Comfort, protection and fit is really important, as

are lightweight, durable materials to provide

complete protection and flexibility of design for

combination with other PPE including ear

defenders, safety helmets, and visors.

Also, look out for specially developed lens

technology for impact-resistance plus anti-scratch

and anti-fog coatings on both sides, as well as

styles that can be worn over prescription glasses.

Around the lens, ergonomic designs should

incorporate practical features, like a soft nose

bridge and ‘adjustable temples’, which ensure the

glasses stay in place and fit safely allowing you to

keep a sharp focus all day long.

What to look for in the best face

protection visors

BS EN 166:2002 is the International Standard for

eye and face protection covering personal

protective eye wear in the form of Visors and Eye

Shields, and it’s important to look for this standard

when you’re choosing what products to use.

Think carefully about hazards in the work

environment and look for a product that is

designed for a comfortable, tight and ergonomic

fit for maximum protection, especially so that no

objects get around the edges of the visor. The

visor should cover your face from at least the

forehead to the base of the chin.

The best quality Visors are available in different

materials, thickness and size which correspond to

specific hazard protection. You can even get Visors

that are treated with an anti-fog coating. Don’t

assume that a basic product that you might use

for strimming or jet washing will provide maximum

effective protection on a construction site.

Continued on page 70


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Safety Products

Continued from page 68

Top quality SAFE face protection from

Hellberg Safety

Hellberg Safety specialist PPE products include

highly advanced face protection products, noise

hazard protection and communication solutions

for personal safety and wellbeing on site.

Hellberg’s interoperable face protection products

offer helmet and visor solutions to suit a variety

of internal and external work situations. With a

standard product design across the range, users

are able to mix and match visors, carriers, and

hearing protectors for complete ‘headband-only’

or ‘safety helmet’ solutions that protect against

the hazards faced in differing task environments.

Everything single component in the Hellberg

Safety PPE range combines the hallmarks of

advanced technology, quality and comfort with

superb, practical protection for the hazards you’re

likely to face – whatever job you’re doing in highrisk

work environments.

Find focus with Hellberg’s range of allnew

specialist safety glasses and goggles

Renowned for its hi-spec PPE that includes

advanced hearing protection products, face

protection and communication solutions,

Hellberg Safety has launched a new range of

safety eyewear.

With a wide range of street-smart styles, from

basic to premium – the new range ensures a

consistently clear line of sight and safe vision for

professional tradesmen and women wherever

they’re working on site.

Built with lightweight, durable materials and

specially developed lens technology, the eyewear

provides complete protection, and comfort

throughout the working day and can be easily

combined with other PPE including ear defenders,

safety helmets, and visors.

With a focus on enhanced safety in all

conditions, Hellberg Safety Eyewear has

impact-resistant lenses with anti-scratch and

“Hellberg’s interoperable face protection

products offer helmet and visor solutions to suit

a variety of internal and external work situations”

“The new range

ensures a consistently

clear line of sight and

safe vision for

professional

tradesmen and women

wherever they’re

working on site”

anti-fog coating on both sides, and there are

styles that can be worn over prescription

glasses.

Around the lens, the ergonomic design,

incorporates practical features, like a soft nose

bridge and ‘adjustable temples’, making sure

the glasses stay in place and fit safely, allowing

you to keep your focus all day long.

With Hellberg Safety Visor Protection prices

starting at only £17* and good quality Eyewear

at £9*, it’s a worthwhile investment in longerlasting

Eye and Face Protection – and a lot more

effective than anti-wrinkle cream!

*RRP, plus VAT.

Contact Hultafors Group UK / Hellberg Safety

01484 854788

www.hellbergsafety.com

70 TC MAY 2021


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Updates

For further info on all these updates and more, visit www.total-contractor.co.uk

MORE CORDLESS POWER

Makita has expanded its high-performance

40VMax XGT range with the launch of nine

new tools, including the company’s first twin

40VMax (80VMax) machines.

The new additions all feature Makita’s high

efficiency brushless motors and offer leading

performance and run-times due to advances in

battery technology and Makita’s innovative

brushless motors that minimise friction and

wasted energy within the machine. The new

40VMax x2 (80VMax) XGT Brushless Rotary

Demolition Hammer (HR006GZ) features variable

speed control and two operating modes – rotary

hammer and hammer only. It has a rotary speed

of 150 to 310 rpm and delivers 1,100 to 2,250

blows per minute (bpm).

Makita has also launched a Brushless Combi Drill,

Brushless Brad Nailer and two Brushless Circular

saws, all of which utilise the powerful 40VMax XGT

battery system. The versatile HP002GZ 40VMax

XGT Brushless Combi Drill (pictured) has a

mechanical 2-speed control (high and low), a

variable speed trigger and 21 torque settings for

full user control. Kevin Brannigan, Marketing

Manager at Makita UK, said: “We are delighted to

launch the new additions to the XGT range,

including the first of our 80VMax XGT line up.

These new high performance tools provide

customers with even greater choice in utilising

cordless power. With Makita’s expertise in battery

technology, users are now offered the

performance levels and productivity of specialist

corded tools but with all the safety and flexibility

that cordless offers.”

www.makitauk.com

STREET-SMART SHORT COMFORT ON SITE!

Combining 4-way stretch fabric that delivers working comfort all day with street-smart, slim-fit designs,

Snickers says its new work shorts are great for grafting in the warmer months.

These lightweight garments feature a body-mapping design and are made from a self-ventilating stretch fabric

with CORDURA reinforcements for durability and all-round mobility when you need it most.

The Men’s FLEXIWork lightweight work shorts come with flexible gusset seams and also have easy-to-access

holster pockets with zip compartments, an expandable stretch cargo pocket and a ruler pocket. The

AllroundWork women’s multi-purpose slim-fit shorts have 4-way stretch panels in the right places for

consistent comfort, practical pockets for optimal functionality and great freedom of movement.

For professional tradespeople who rely on their gear in demanding environments, they’re a must for those who

want the ultimate in cool comfort this summer. www.snickersworkwear.co.uk

STACKED IN YOUR FAVOUR

Milwaukee has introduced an essential range of PACKOUT Drawers that enable rapid and easy

access to your tools, even if they’re at the bottom of the PACKOUT stack.

Available in two options, the two and three drawer models both include steel ball bearings that

support up to 11kg per drawer and an advanced locking security bar – which can be locked with a

padlock – that prevents drawers from opening during transit.

Quick-adjust drawer dividers are supplied with each drawer, allowing users to organise their tools

and accessories exactly how they want them for speed and convenience. PACKOUT’s famous durable

construction enables a weight capacity of 22kg, plus its metal reinforced corners and impact

resistant polymer construction allow for the ultimate resilience.

https://uk.milwaukeetool.eu

72 TC MAY 2021


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Updates

For further info on all these updates and more, visit www.total-contractor.co.uk

HULTAFORS ADDS TO OFFERING

The Hultafors Group has completed the

acquisition of the Fristads, Kansas and

Leijona protective wear brands

following approval by the relevant

competition authorities.

Peter Dumigan, Managing Director of the

Hultafors Group UK, said: “All three are

well-known brands in professional

workwear with well-established market

positions in Sweden, Denmark, Finland and

will complement the Snickers Workwear

brand throughout the European market

very well indeed.”

With a portfolio of premium PPE brands that

includes Snickers Workwear, Hellberg Safety,

as well as EMMA, Solid Gear Safety Footwear

and Hultafors Tools, the Hultafors Group

serves markets throughout Europe and North

America.

Its aim is to continue to drive the

development of all its brands with a focus

on customer value, product innovation and

sustainability.

Find out more about the Hultafors Group

product range; call 01484 854788 or email

sales@hultaforsgroup.co.uk

ON THE LOOKOUT FOR AMBASSADORS

Are you interested in testing a wide range of products from market leader WernerCo? If so, you could

become one of five Werner Approved ambassadors who will be asked to put a whole range of Werner

products to the test, and provide expert and honest product reviews.

The five successful individuals will receive a supply of the latest products from WernerCo, in addition to

several of its best-selling products to put to the test and review whilst on the job. As well as getting to test out

these brand-new products before anybody else, the Werner Approved Ambassadors will also take part in

marketing activity for WernerCo, featuring in social media content and photography, providing an opportunity to promote their own skills and businesses.

Joanne Mitchell, Head of Marketing at WernerCo, commented: “We are excited to begin the search for our very first team of Werner Approved

Ambassadors. To fully represent the wide range of applications that our products can be used for, we’re looking forward to appointing Ambassadors from

a variety of different trades such as builders, electricians, plumbers and decorators.”

Find out more info about how to apply in the news section at www.wernerco.co.uk

A FOCUS ON FALL PROTECTION

Newly released Toolbox Talks, designed to share specific safety messages on work sites, are now

available from the International Powered Access Federation (IPAF). They are two short presentations

aimed at explaining the use of personal fall-prevention equipment (PFPE) when using Mobile

Elevating Work Platforms (MEWPs) and what to look for when checking PFPE before use.

IPAF’s Andy Access posters and Toolbox Talks are

available free to download from

The presentations are available in English with other languages to follow soon. They add to the existing

www.ipaf.org/AndyAccess and

suite of Toolbox Talks, which supplement the simple safety messages contained in the popular series of www.ipaf.org/toolboxtalks.

Andy Access posters for work sites. The Toolbox Talks can be found on the IPAF website at www.ipaf.org/toolboxtalks with IPAF’s Andy Access posters at

www.ipaf.org/AndyAccess. All are free to download and available to users of MEWP or Mast Climbing Work Platform (MCWP) equipment.

Peter Douglas, CEO & MD of IPAF, said: “These Toolbox Talks are already being used enthusiastically by managers and supervisors on a whole range of

sites. They are a simple way for employers to get simple safety messages across. IPAF is committed to delivering a range of Toolbox Talks to complement

the Andy Access series of posters and all are free for anyone to download.” www.ipaf.org

74 TC MAY 2021


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In collaboration with the Green Roofing Association.

From the publishers of


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*Meets Zones 1-4 without need for additional counter batten or integral tape. Achieves unrestricted use for wind uplift - Zones 1-5 at 310mm batten gauge or when installed on sarking board.

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