February 2024
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FEBRUARY <strong>2024</strong><br />
The Air<br />
To The<br />
Throne<br />
>>> • LRWA AWARDS: FINALISTS • INVERTED ROOFS • WORKWEAR & PPE • FIXINGS • >>>
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Editor’s Intro<br />
MATT DOWNS<br />
EDITORIAL DIRECTOR<br />
MATTDOWNS@MEDIA-NOW.CO.UK<br />
07963 330774<br />
The Air<br />
To The<br />
Throne<br />
Whilst each year brings new challenges for the construction sector, the<br />
issue around skills, recruitment into the sector and retaining labour is<br />
one that persists year on year.<br />
The task becomes even harder when it’s about keeping traditional trades such<br />
as roof slating and tiling alive. But that’s what the Build Your Future initiative,<br />
launched by the West Lothian Construction Forum, which is Chaired by Jamie<br />
Taylor, Owner of Taylor Roofs, is trying to do. Jamie’s company Taylor Roofs has<br />
joined forces with other trades to showcase their traditional skills to 60 second<br />
and third year pupils at Armadale Academy. Announcing the pilot scheme,<br />
which took place on 30th January, Jamie explained: “It’s vital that we try our<br />
hardest to keep the traditional skills alive. The idea behind this programme is<br />
that we give the youngsters an insight into construction and what a career in<br />
the industry might look like for them.” And that’s the key to initiatives like this,<br />
showcasing the skill involved in roofing and construction and piquing the<br />
youngsters’ interest at the right time; planting that seed that construction can<br />
be a welcoming sector where you can grow and develop, and ultimately enjoy a<br />
rewarding career. And it stands to reason that if we consistently we get more<br />
volunteers from roofing into schools around the UK, we’ll get more motivated<br />
new entrants choosing – rather than falling into – a career in roofing in the<br />
years to come. You can read more about The Build Your Future initiative at<br />
total-contractor.co.uk.<br />
Elsewhere in this issue, as James Talman explains on page 16, challenges<br />
around labour is also one of the areas NFRC is looking to tackle in <strong>2024</strong>,<br />
alongside poor payment practices and preparing for the impact of increased<br />
competency requirements; Bradley Hirst of Knauf Insulation answers key Qs<br />
around embodied carbon and sustainability (p38); and we discuss PPE and<br />
workwear with the team at Carhartt (p44), plus much more!<br />
Matt<br />
Front cover courtesy of A Proctor Group. Proctor Air is the new air and<br />
vapour permeable, highly water resistant roofing underlay from A Proctor<br />
Group. Find out more on page 36. www.proctorgroup.com<br />
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Editorial Director Matt Downs<br />
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Email: mattdowns@media-now.co.uk<br />
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Supported by:<br />
48<br />
Makita has added a range of heated<br />
base-layers to its offering to keep contractors warm<br />
on site. Find out more in our Tools & Workwear<br />
updates from page 48.
Contents<br />
3 KEY FEATURES<br />
22<br />
22 THE CONDENSATION<br />
CONSIDERATION<br />
Matt Neary of Glidevale Protect takes a closer<br />
look at the new NHBC guidance and discusses<br />
the choice of roofing underlay and ventilation<br />
solutions available to help lower condensation<br />
risk when using integrated, in-roof solar panels<br />
40 INVERTED FOCUS<br />
Rob Firman of Polyfoam XPS talks all things<br />
inverted flat roofs, discussing waterproofing<br />
considerations, waterflow reducing layers and<br />
thermal insulation choice and much more...<br />
44 WORKWEAR & PPE FOCUS<br />
The team at Carhartt explain why choosing<br />
Personal Protective Equipment (PPE) and<br />
workwear with in-built toughness is absolutely<br />
crucial for those working on construction sites<br />
FURTHER READING<br />
15 WORKING IN BAD WEATHER<br />
As the poor weather continues, Marley’s Daniel Redfern<br />
provides tips to stay comfortable and safe on site<br />
18 BUILDING NEW HORIZONS<br />
Fraser Biles of BMI discusses the importance of new<br />
entrants learning from experienced contractors<br />
20 ASK A PROCTOR<br />
What’s the difference between a breather membrane<br />
and roofing underlay? The team explain all...<br />
26 ROOFING: THE GREENER SIDE<br />
Justin Pitman of Proteus Waterproofing looks at the<br />
increased demand within the green / blue roof sector<br />
46<br />
32 PROJECT FOCUS: FACADE<br />
We take a closer look at Proteus Facades’ role in a new<br />
student accommodation building in Edinburgh<br />
46 FIXINGS: ‘THE UNSUNG HEROES’<br />
James Robinson of Samac Fixings explains why the<br />
importance of quality fixings can never be overstated<br />
4 TC FEBRUARY <strong>2024</strong>
REGULARS<br />
16 NFRC ROOFING TALK<br />
What are the key areas of focus for NFRC this<br />
year? CEO James Talman highlights his priorities<br />
and ambitions for the association over the next<br />
twelve months, with support for members with<br />
regards to challenges around skills and labour,<br />
tackling retentions and poor payment practices,<br />
and helping to usher in the ‘biggest change in<br />
construction’ – building safety and the<br />
associated requirements around competency<br />
38 KNAUF INSULATION<br />
TECH TALK<br />
In his latest column, Bradley Hirst, Technical<br />
Services Manager at Knauf Insulation, answers<br />
some frequently asked questions regarding<br />
embodied carbon, highlighting why it should be<br />
a key consideration for the supply chain<br />
INDUSTRY NEWS<br />
06 ENTRIES OPEN FOR BMI COMP!<br />
Is there an apprentice in your team with the potential to<br />
win this year’s BMI Apprentice of the Year competition?<br />
14 AND THE FINALISTS ARE...<br />
The shortlisted projects have been announced for this<br />
year’s LRWA Awards, which take place on March 20th...<br />
SECTIONS:<br />
TOTAL<br />
ROOFING<br />
15<br />
TOTAL<br />
CLADDING<br />
32<br />
TOTAL<br />
INSULATION<br />
38<br />
10<br />
As the green roof sector continues<br />
to grow, the recently formed GRO<br />
Training & Education working<br />
group has outlined what it’s doing<br />
to help address any skills gap.<br />
VEHICLES, TOOLS<br />
& WORKWEAR<br />
44<br />
FEBRUARY <strong>2024</strong> TC 5
Industry News<br />
WORRYING STATS FOR<br />
SECTOR INSOLVENCIES<br />
The construction sector is experiencing<br />
the highest number of insolvencies of any<br />
industry in the UK, with 4,370 companies<br />
going bust in the year to the end of<br />
November 2023, representing 17% of all<br />
insolvencies, according to Mazars, the<br />
international audit, tax and advisory firm.<br />
Mazars says in 2022, the UK’s construction<br />
sector contributed 6% to the country’s GDP,<br />
however construction insolvencies have<br />
consistently outnumbered any other sector<br />
for the past three years, with 2022/23’s<br />
figure showing a 7% increase from the 4,086<br />
companies that went insolvent in 2021/22,<br />
and a 76% rise from 2,481 2020/21.<br />
Mazars points out that the construction<br />
sector has been hit hardest with a perfect<br />
storm of high material and labour costs,<br />
while the impact of rising borrowing costs<br />
has further impacted profit margins on both<br />
live and pipeline development projects. The<br />
company also points out that 2023 saw<br />
mortgage rates reach a 15-year high, putting<br />
a dent in consumer confidence and taking the<br />
heat out of the dramatic price rises in<br />
residential housing over recent years.<br />
Mark Boughey, Partner in the Restructuring<br />
Services team at Mazars, explained: “There<br />
are now on average a dozen building<br />
companies going under every single day in<br />
the UK. This is an immensely difficult period<br />
for the construction sector.”<br />
He continued: “One problem is that the<br />
commercial viability of a lot of today’s projects<br />
were assessed three or four years ago, with<br />
fixed price contracts often being negotiated –<br />
since then, costs have spiralled, while buyers’<br />
appetite has taken a dive. Construction<br />
contractors operate on very tight margins at the<br />
best of times – the sector is really being<br />
squeezed at both ends right now.”<br />
More news, updates and interviews at www.total-contractor.co.uk<br />
APPRENTICES, HAVE YOU GOT WHAT IT<br />
TAKES TO WIN THIS YEAR’S BMI TITLE?<br />
Roofing apprentices across the UK are being<br />
encouraged to showcase their skills by entering<br />
this year’s BMI Apprentice of the Year<br />
competition, which takes place on the 24th and<br />
25th July.<br />
The event, hosted by BMI UK & Ireland –<br />
manufacturer of leading roofing<br />
brands Redland and Icopal – is<br />
open to apprentices in both pitched<br />
and flat roofing. The competition will<br />
see finalists undertake a series of<br />
challenges, providing opportunities to<br />
showcase and develop their skills – from<br />
technical and practical capability and teamwork,<br />
through to marketing and business acumen.<br />
Held over two days at the BMI Academy in<br />
Gloucestershire, each round of the competition is<br />
overseen by a panel of judges who are selected<br />
for their influence on the roofing sector. This<br />
provides finalists with an opportunity to learn<br />
directly from leading industry figures.<br />
BMI says the Apprentice of the Year competition<br />
aims to strengthen the future of the roofing<br />
industry and address the skills shortage by<br />
providing a platform for these new recruits to<br />
expand their skills and receive the necessary<br />
levels of support needed to develop quickly and<br />
succeed.<br />
More than just a contest of existing technical<br />
skills, BM points out the two-day event is<br />
designed to provide coaching and development so<br />
that all of the finalists walk away having<br />
benefitted from the experience. Reflected through<br />
this year’s theme of ‘Building New Horizons’, BMI<br />
says the competition provides a platform for new<br />
talent starting their careers, as well as the tutors<br />
and employers creating opportunities and sharing<br />
their expertise with apprentices.<br />
This year, two apprentices will earn the title of<br />
BMI Apprentice of the Year – one in flat roofing<br />
and the other in pitched – alongside a £1,000<br />
Euan Forsyth, pictured above, centre, with<br />
Meghan Waller and Fraser Biles of BMI UK &<br />
Ireland, was crowned Pitched Roofing<br />
Apprentice of the Year 2023, and Charlie Plant<br />
(left, centre) won the Flat Roofing category.<br />
cash prize and three years’ worth of training<br />
at the BMI Academy. To enter, roofing apprentices<br />
are invited to submit their entry online by 26th<br />
April.<br />
Fraser Biles, Commercial Director at BMI, said:<br />
“Apprenticeships provide a fantastic route in the<br />
industry, giving new entrants the opportunity to<br />
undertake their training and apply their learnings<br />
on jobs alongside experienced roofers.”<br />
He continued: “The BMI Apprentice of the Year<br />
event celebrates the commitment, enthusiasm<br />
and growing skillsets of new roofers – as well as<br />
the continued support of employers, colleges,<br />
and training providers that help them on their<br />
journeys. The competition is the ideal platform<br />
for apprentices to showcase and develop their<br />
skills, and may even be an event that helps<br />
define their careers in roofing. We’re really<br />
excited to see the quality of candidates for this<br />
year’s competition!”<br />
This year’s BMI Apprentice of the Year competition<br />
opened during National Apprenticeship Week on<br />
5th <strong>February</strong>, and applicants are invited to submit<br />
entries online by 26th April. This year’s finalists<br />
will be selected in May, before being invited to<br />
compete in the two-day final at the BMI Academy<br />
in July where the winners will be crowned.<br />
Find out more about the BMI Apprentice of the<br />
Year competition and how to apply, at<br />
bmigroup.com/uk/aoty<br />
6 TC FEBRUARY <strong>2024</strong>
WestWood Liquid Technologies Limited<br />
31 Morris Road, Nuffi eld Industrial Estate,<br />
Poole, Dorset BH17 0GG<br />
Phone: +44 800 808 5480<br />
Liquid Applied Waterproofi ng Systems<br />
Car Parks • Flat Roofs • Metal Roofs • Gutters • Roof Terraces Balconies
Industry News<br />
SUPPLIER MOVES TO<br />
EMPLOYEE OWNERSHIP<br />
Optagon Group, which owns Rubber4Roofs, a<br />
specialist in flat roofing materials, has<br />
announced that its 50-strong workforce now<br />
owns the majority of the company through<br />
the Employee Ownership Trust (EOT) model.<br />
First established in 2010 and based in<br />
Swallowgate Business Park, Coventry,<br />
Optagon owns and operates a family of<br />
brands. These include Rubber4roofs, Roof<br />
Depot, SkyGuard and Kitbuildr.<br />
The move to employee ownership is said to<br />
have been motivated by an offer from a larger<br />
organisation to buy the business. However, the<br />
founders, Tom and Tina Cullingford, turned it<br />
down to let the staff be in charge of the<br />
company’s destiny.<br />
Explaining why they decided to sell Optagon to<br />
the staff, the Cullingfords stated: “It takes a<br />
lot of hard work and determination to build a<br />
company, and it takes a great team to build a<br />
great business. We were approached earlier in<br />
the year by a large organisation that wanted to<br />
buy the business, which got us thinking. It<br />
was an amazing offer, but we turned it down<br />
because we wanted this company to control<br />
its destiny.<br />
“We believe the best way to achieve that is to<br />
involve every single member of staff in how it<br />
is run. This is a terrific business – 2023 has<br />
been our best-ever year– and we wanted all<br />
staff to benefit from that success as we<br />
continue to grow. We’re incredibly excited at<br />
the huge opportunity this represents. This is<br />
going to be business as usual, only better.”<br />
More news, updates and interviews at www.total-contractor.co.uk<br />
ICB LAUNCHES NEW CARDIFF TRAINING HUB<br />
ICB Waterproofing, one of the UK's leading<br />
providers of waterproofing solutions, has<br />
opened a new training facility in Cardiff, Wales.<br />
The company says the new facility, strategically<br />
located in the city of Cardiff, is part of its<br />
expansion plan, giving local roofing contractors<br />
access to available training and technical<br />
information.<br />
Recognising the importance of specialised<br />
training, ICB Waterproofing says it is excited to<br />
offer a range of courses tailored to the needs of<br />
modern roofing professionals:<br />
• alwitra Evalon Single Ply Training Courses:<br />
Contractors can choose between intensive 1-day<br />
and comprehensive 3-day courses. With extensive<br />
industry experience, ICB's certified trainers will<br />
help to develop participants’ practical and<br />
technical expertise.<br />
• Fleet PMMA Liquid Training: This specialised<br />
1-day training focuses on the application and<br />
benefits of PMMA (Polymethyl Methacrylate)<br />
liquid waterproofing solutions. Participants will<br />
gain hands-on experience and an in-depth<br />
understanding of this versatile material,<br />
enhancing their ability to deliver durable and<br />
aesthetically pleasing waterproofing solutions.<br />
• Strata Reinforced Bitumen Membranes<br />
Training Course: A complete 3-day course<br />
designed for those looking to master the<br />
application of bitumen roofing. This program<br />
covers everything from the basics to advanced<br />
ICB Waterproofing’s new<br />
training facility in Cardiff.<br />
techniques, ensuring that participants are wellequipped<br />
to work with this robust and time-tested<br />
roofing material.<br />
ICB Waterproofing says the facility is tailor-made<br />
for training, ensuring that each participant gains<br />
maximum benefit from their experience. The<br />
company says its certified trainers are industry<br />
leaders with a wealth of knowledge and a passion<br />
for nurturing the next generation of roofing experts.<br />
Mike Williams, the Regional Technical Manager for<br />
the area of Cardiff, will be on hand to answer any<br />
technical questions. He explained: “With 15 years<br />
of experience within the roofing industry, I am<br />
looking to develop my relationships with local<br />
roofing contractors further and build new<br />
connections with contractors in south Wales and<br />
surrounding areas.”<br />
The office is also home to Perry Hawkes, the<br />
Projects Technical Sales Manager, who specialises<br />
in Solar PV and Green Roofs. He commented: “My<br />
aim is to open the door to additional opportunities<br />
by helping the customers tender for works they<br />
would otherwise turn down, offering wrap-round<br />
specification, design, and installation support for<br />
Solar PV, Green Roofs, and roof safety systems<br />
amongst other things.”<br />
Roofing contractors interested in enrolling in the<br />
training courses or who are interested in finding<br />
out more about the facility can visit<br />
alwitra.co.uk/become-accredited or contact<br />
ICB on 01202 785200.<br />
Tom Cullingford will stay on as Managing<br />
Director as part of a senior leadership team<br />
running the company day to day. He will be<br />
joined on the board of the business by two<br />
newly appointed Legal Directors, General<br />
Manager Antony Murray and Finance Director<br />
Zoe George. www.rubber4roofs.co.uk<br />
8 TC FEBRUARY <strong>2024</strong>
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Industry News<br />
More news, updates and interviews at www.total-contractor.co.uk<br />
GRO WORKING GROUP ADDRESSES<br />
SECTOR TRAINING DEMANDS<br />
According to green roof material supplier Diadem, the green roof<br />
market is set to be worth GBP £4.5 billion by 2030. This is based on<br />
growth of around 17% each year. But how will the industry keep up with<br />
demand without the recruitment of the next generation of designers,<br />
installers and stewards of vegetated rooftops? And how is GRO, the<br />
Green Roof Organisation, addressing the potential skills gap?<br />
GRO has announced that the recently<br />
formed GRO Training & Education<br />
working group is celebrating over 500<br />
learners that have engaged with green<br />
roof training via Lantra Awards and<br />
GRO certification since 2018. GRO<br />
says the training has been rolled out across the four UK nations, including<br />
uptake from NatureScot, Natural Resources Wales and Queen’s University<br />
Belfast, plus numerous practical installation courses in England.<br />
The Association points out its member companies Wildflower Turf Ltd and<br />
Wraxalls have been offering green roof training to their partners and<br />
clients to encourage further uptake in the industry, and Construction<br />
College Midlands, part of Walsall College, has created a bespoke green<br />
roof rig in its green skills training area. GRO has also announced this year<br />
sees the introduction of a Green Roofs Microcredential (qualification) from<br />
Gower College and Swansea University, supported by funding from Welsh<br />
Government and, separately, the foundations of a Sustainable<br />
Environmental Roofing apprenticeship scheme.<br />
GRO says it is also actively working towards a more diverse and inclusive<br />
industry, having signed up to the Horticultural Industries ED&I Charter,<br />
and says it is proud that there is already a good ethnic and gender<br />
balance across the 500 plus certified learners. With this in mind, the<br />
Association points out Abigail S. was just 18 when she became the first<br />
female, and only the third person, in the UK to hold a blue LISS/CSCS<br />
Green Roof Installer card, demonstrating competency in the installation<br />
and maintenance of green roofs.<br />
The working group, which is made up of Chris Bridgman as Chair (Bridgman<br />
& Bridgman and GRO Vice Chair), Giles Doland (Zinco and GRO Chair), Mark<br />
W Harris (SIKA and GRO Secretary), Kay Rose (Institute of Roofing), Ben<br />
Arundel (ABG Installs), Ben Howkins (Sky Garden), Mark Dunn (SIKA), Neel<br />
Bidessie (Langley) and James Beattie (Pritchard & Pritchard), says it will be<br />
focusing on meeting the training needs of the future across all learning<br />
levels, and including all roles within the industry, whilst a route map for<br />
learners will be created, as well as a focus on training the trainer.<br />
www.greenrooforganisation.org / www.lantra.co.uk/product/35103<br />
ROBERTS GROUP ANNOUNCES<br />
NEW MANAGING DIRECTOR<br />
The Roberts Group, encompassing industry leaders Polyroof, Restec,<br />
and Resology, have proudly announced the appointment of Patrick<br />
Roberts as Group Managing Director.<br />
In this role, The Roberts Group says Patrick will spearhead the Group’s<br />
strategic vision and operational excellence, ushering in a new era of growth<br />
and innovation.<br />
The Roberts Group says Patrick, a 3rd generation member of the Roberts<br />
family, brings a wealth of experience and a deep understanding of the<br />
organisation’s values, and his advancement signifies a pivotal moment in the<br />
family business’s evolution, with a commitment to maintaining its roots and<br />
core principles, while embracing professional growth and global expansion.<br />
Nick Roberts, representing the 2nd generation of the Roberts family, will take<br />
on the role of CEO alongside the company’s Chairman, David Roberts.<br />
Together, they boast an impressive, combined tenure of nearly 70 years at the<br />
helm and have played instrumental roles in shaping the Roberts Group into<br />
an industry leader. The Roberts Group says this transition reflects their<br />
strategic move towards trustee and supervisory roles, allowing them to<br />
contribute their expertise to the broader strategic direction of the group,<br />
ensuring it remains not only an industry leader, but also a great company to<br />
work with.<br />
“The legacy of the Roberts Group is a testament to the leadership of David<br />
and Nick Roberts over the past four decades,” explained Patrick Roberts.<br />
“Their dedication, vision and unwavering commitment to excellence have laid<br />
a strong foundation for not only our continued success, but the liquid roofing<br />
industry as a whole. I am honoured to build upon their achievements and<br />
lead the group into the future.”<br />
The Roberts family’s commitment to excellence extends to other key<br />
members, including Ben Roberts and Andrew Roberts, who serve as the<br />
Quality Manager and Sustainability Manager, respectively. The company says<br />
their roles highlight the family’s dedication to quality and sustainability as<br />
integral components of the family business’s ethos.<br />
www.polyroof.co.uk / www.restecroofing.co.uk<br />
Patrick Roberts<br />
(centre) with Nick<br />
Roberts (left) and<br />
David Roberts.<br />
10 TC FEBRUARY <strong>2024</strong>
NORTHWEST ALUMINIUM REBRANDS &<br />
STREAMLINES OFFERING AS KYTUN<br />
NorthWest Aluminium, one of the UK<br />
and Ireland’s leading manufacturers<br />
of roofing and ventilation solutions,<br />
has announced a significant<br />
rebranding of the business, bringing<br />
together its complete product range<br />
under the Kytun banner.<br />
Announcing the new brand identity, Daniel<br />
Gallagher (pictured above), Kytun Managing<br />
Director, explained: “I am proud to share the<br />
exciting news on the evolution of our business.<br />
After years of exceptional growth and expansion<br />
of our operations far beyond our original base,<br />
we’re delighted to announce a transformative<br />
rebrand.<br />
“We have amalgamated all of our operations<br />
under the Kytun banner – a name that not only<br />
captures the spirit of our journey but also<br />
signifies a unified and modern brand, reflecting<br />
the breadth of our reach across the UK and<br />
Ireland.”<br />
He continued: “Kytun is not just a new name; it’s<br />
a symbol of our commitment to consistency, unity,<br />
and excellence. This change is more than<br />
cosmetic; it aligns with our vision for the future,<br />
signifying an exciting stage of our ongoing growth,<br />
whilst conveying our dedication to all our clients,<br />
no matter where they are located.<br />
Discussing the new logo and branding which<br />
customers will see in the market, Daniel<br />
explained: “Accompanying the new name is a<br />
fresh visual identity. Our logo and branding<br />
elements have undergone a modern makeover,<br />
representing innovation and a<br />
forward-thinking approach. This<br />
visual transformation is a<br />
reflection of our commitment to<br />
staying at the forefront of industry<br />
trends and technology. And whilst<br />
things may look different, our same great team<br />
remain ready to serve you.”<br />
Focusing on the consolidation of the product<br />
range under the Kytun banner and the benefits<br />
this will provide for the supply chain, Daniel<br />
explained: “Streamlining our offerings ensures a<br />
more focused and efficient approach to delivering<br />
top-quality products across our 4 distinct<br />
categories; Dry Fix Roofing Systems; Pitched Roof<br />
Ventilation; Aluminium Rainwater Systems;<br />
Architectural Aluminium. Every product represents<br />
the Kytun standard of excellence and has been<br />
designed to perform.”<br />
Daniel continued: “Over the coming weeks,<br />
changes will be evident in our company<br />
documentation and digital presence, as we<br />
embrace the Kytun brand. Rest assured, this<br />
transition is designed to be seamless, and we will<br />
provide all the necessary resources and support<br />
to guide you through the process.”<br />
He concluded: “I want to take this opportunity to<br />
thank our valued clients, partners, and employees<br />
for their unwavering support throughout this<br />
journey. Their dedication has allowed us to reach<br />
this exciting new chapter, and we are eager to<br />
continue our shared success story as Kytun.”<br />
www.kytun.com<br />
FURTHER GROWTH AT<br />
ROOFLIGHT ASSOC.<br />
Roofing & cladding contractor GeoRoof has<br />
joined The Rooflight Association as a<br />
Contractor Member.<br />
GeoRoof specialises in providing building<br />
envelope solutions for the warehouse and<br />
logistics market, drawing on broad experience<br />
in this sector. The company carries out all<br />
design in-house and operates on a nationwide<br />
basis.<br />
Following its rebrand and re-organisation last<br />
year, The Rooflight Association has opened its<br />
membership to contractors and other<br />
businesses in the rooflight supply chain.<br />
GeoRoof Commercial Director Gavin Harriman,<br />
said: “The industry best-practice goals of The<br />
Rooflight Association mirror our own. We saw<br />
an opportunity to work more closely with the<br />
Association’s manufacturer members and to<br />
gain deeper insights into the many factors<br />
which affect and influence our industry.”<br />
Ian Weakford, Chairman of The Rooflight<br />
Association, said: “It’s great to have a<br />
forward-looking business like GeoRoof as a<br />
new member company – we’re delighted to<br />
welcome them and look forward to working<br />
together. Previously, as NARM (the National<br />
Association of Rooflight Manufacturers), our<br />
membership was limited to manufacturers<br />
only. We now welcome applications from<br />
contractors, installers, specifiers and<br />
consultants, as well as manufacturers of<br />
rooflights and associated products – to<br />
provide a united voice for the whole<br />
rooflighting industry.”<br />
www.rooflightassociation.org<br />
FEBRUARY <strong>2024</strong> TC 11
It’s more<br />
than a roof<br />
It’s a Marley Solar Roof System.
LEARN MORE<br />
You may just see a roof. But by installing the complete<br />
Marley Solar Roof System, you’ll see benefits of a solution<br />
designed to work together, whilst making the most of the<br />
growing demand for roof integrated solar panels.<br />
It’s more than a roof, it’s an opportunity for roofers.<br />
marley.co.uk
Industry News<br />
FINALISTS ANNOUNCED FOR LRWA AWARDS <strong>2024</strong>!<br />
CEO Sarah Spink says the shortlisted projects demonstrate “the versatility of liquids across a number of sectors and diverse<br />
applications”, and those attending the <strong>2024</strong> Awards & Gala Dinner on March 20th “are in for a treat.”<br />
The Liquid Roofing and Waterproofing<br />
Association (LRWA) has revealed the shortlist<br />
for its <strong>2024</strong> Awards & Gala Dinner.<br />
A total of 20 project finalists have been chosen<br />
across four categories. A panel of independent<br />
judges – including liquid waterproofing<br />
specialists, specifiers and contractors – reviewed<br />
all submissions anonymously to reveal the<br />
shortlist.<br />
The LRWA says the selection process was based<br />
on strict criteria, including project complexity,<br />
standard of workmanship, evidence of problem<br />
solving, and aesthetics. The names of the<br />
contractor and manufacturer in each entry were<br />
omitted prior to judging.<br />
The winners of each category will be announced<br />
at a gala dinner on Wednesday 20 March <strong>2024</strong> at<br />
the Titanic Hotel in Liverpool’s Stanley Dock. As<br />
well as a winner for each project category, there<br />
will be a highly commended award.<br />
As in previous years, the gala dinner will also<br />
recognise the talents of individuals, including<br />
awards for ‘Trainer of the Year’ and ‘Student of<br />
the Year’.<br />
The LRWA Awards is now in its sixth year and<br />
Sarah Spink, CEO of the LRWA has thanked<br />
headline sponsor Sika, and other membership<br />
support, and says <strong>2024</strong> is shaping up to be the<br />
biggest event yet.<br />
Sarah commented: “Every year we’ve seen the<br />
standard of entries become even higher, and this<br />
year has been no exception. The variety of<br />
projects shortlisted further demonstrates the<br />
versatility of liquids across a number of sectors<br />
and diverse applications.<br />
“Thanks to the backing of our generous sponsors,<br />
we can deliver another sell-out event that brings<br />
contractors, clients, manufacturers, and suppliers<br />
Sarah Spink, CEO<br />
of the LRWA.<br />
together. We’re in for a treat at the<br />
<strong>2024</strong> awards, in what remains a<br />
highlight in the roofing industry<br />
calendar!”<br />
The finalists for the <strong>2024</strong> LRWA<br />
Awards are:<br />
Liquid Roofing Project of the Year 1000m 2 :<br />
• Emirates Stadium – Triflex & Topek Southern<br />
• Madley Communication Centre – Sika &<br />
Nautilus Roofing and Exteriors Ltd<br />
• Metquarter Shopping Centre – Makers<br />
Construction & WestWood Liquid Technologies<br />
• Millstream West – WestWood Liquid<br />
Technologies & Premier Property & Construction<br />
• West Suffolk Hospital – Sika & Cambridge Flat<br />
Roofing<br />
The LRWA Awards 2023<br />
“We’re in for a<br />
treat at the <strong>2024</strong><br />
awards!”<br />
Liquid Roofing Project of the Year in a<br />
Buried Application:<br />
• 8 Bishopsgate – Lindner Prater & Radmat<br />
• Prospect Place at Battersea Power Station –<br />
Volker Laser & Alumasc<br />
• Grand Union – StructureCare & Tremco CPG UK<br />
• McGee House – Polyroof & MLG Building<br />
Contractors<br />
• Old Bailey – WestWood Liquid Technologies &<br />
Ilfield & Barrett Roofing<br />
Liquid Waterproofing Project of the Year:<br />
• Podium Basement Multi Storey Car Park –<br />
Makers Construction & Triflex<br />
• Shmuseum – WestWood Liquid Technologies &<br />
Cure Group<br />
• The Plaza Shopping Centre – Cemplas &<br />
WestWood Liquid Technologies<br />
• The Wedding Cake – WestWood Liquid<br />
Technologies & EMC Roofing & Cladding<br />
• Valaris Oil Rig – Widopan & Barbers Specialist<br />
Waterproofing<br />
The winners of the Trainer of the Year and Student<br />
of the Year will be announced on 20 March <strong>2024</strong>.<br />
www.lrwa.org.uk<br />
14 TC FEBRUARY <strong>2024</strong>
Safety on site<br />
SIMPLE TIPS FOR WORKING IN POOR<br />
WEATHER<br />
Winter working – especially on exposed roofs – can be a challenge, and keeping both warm<br />
and safe should be a priority for the nation’s contractors. As part of its annual Winter Safety<br />
campaign, Daniel Redfern, from Marley, offers some practical steps roofers and other<br />
outdoor workers can take to minimise risk, increase comfort and, above all, stay safe.<br />
The opportunity to work outside during the<br />
summer is often seen as one of the<br />
perks of the building and roofing trade.<br />
But working outside does bring its own<br />
challenges. As temperatures drop and wet<br />
conditions take over, it’s important relevant<br />
measures are taken to minimise health and<br />
safety risks, especially for those who spend<br />
their days working on exposed areas such as<br />
roofs.<br />
Marley’s annual Winter Safety campaign aims<br />
to emphasise how and where roofing contractors<br />
can take better care and mitigate risk.<br />
So, while it is not possible to totally eradicate the<br />
impact of bad weather, there are some simple<br />
practical tips roofers can follow to offset the<br />
impact of outdoors working.<br />
Risk assessment<br />
The first step is to ensure that a full risk<br />
assessment is undertaken around working<br />
conditions and any potential hazards to workers<br />
are identified.<br />
Challenging winter weather can turn a low-risk<br />
environment into a potentially high-risk situation.<br />
Relatively mild temperatures and rain, or ice and<br />
high winds, all generate issues around working at<br />
height and must be factored in by roofing<br />
companies asking their roofing contractors to<br />
complete roofing projects. Sharing concerns and<br />
pointing out potential issues in an open and<br />
collaborative forum can ensure that the whole<br />
team fully understands hazards and can work to<br />
mitigate risk where it is seen.<br />
Marley says it is vital that roofing professionals do not discard their high<br />
vis jackets in exchange for a bulkier winter coat.<br />
Be safe, be seen<br />
Contractors should also make sure they are using<br />
the correct personal protection equipment (PPE).<br />
PPE is there for a reason, offering both practical<br />
individual protection and a hi visibility solution<br />
that reminds everyone on the job that they are<br />
operating in a risky environment.<br />
Finally, with the use of PPE essential for safety on<br />
site, it is vital that roofing professionals do not<br />
discard the high vis jacket in exchange for a<br />
bulkier winter coat. It is far more effective to layer<br />
up. This not only ensures the breadth of<br />
movement needed by busy workers, but it will<br />
deliver optimised warmth for the best health<br />
protection against the cold winter months.<br />
Helping hands<br />
An obvious and inexpensive tip is the<br />
recommended use of strong gloves and durable<br />
hats to keep hands and heads protected and<br />
warm. Snoods are also a great way to provide<br />
extra warmth without getting in the way of getting<br />
the job done.<br />
Body heat is lost through exposed extremities<br />
leading to increased fatigue as the body works<br />
harder to keep warm in cold or wet conditions.<br />
For jobs where hand dexterity is required,<br />
gloves may be inconvenient, but making the<br />
effort to keep hands and fingers well-wrapped<br />
will minimise discomfort and help alleviate the<br />
creeping impact of colder temperatures on<br />
skin and bones.<br />
Roofers often need to use machinery to resize<br />
tiles or other roofing structure components.<br />
Again, handling machinery that vibrates can<br />
lead to issues such as hand-arm vibration<br />
syndrome when the body is cold, making it more<br />
important than ever to keep well covered.<br />
Don’t forget feet<br />
Unfortunately, roofers are more prone to colds,<br />
chest infections, injuries and fatigue as a result<br />
of working out in low temperatures or enduring<br />
downpours.<br />
The role of appropriate footwear should also<br />
never be underestimated when dealing with<br />
slippery, icy, or wet conditions. Water-resistant<br />
and robust boots, or ice grips on soles, not only<br />
help provide a sound footing for roofers, but they<br />
will also ensure day-long comfort and increased<br />
confidence when on roofscapes.<br />
As part of its Winter Safety campaign, Marley is<br />
giving away hundreds of branded snoods – claim<br />
yours at www.marley.co.uk/wintersafety<br />
Contact Marley<br />
01283 722588<br />
www.marley.co.uk<br />
Marley<br />
FEBRUARY <strong>2024</strong> TC 15
NFRC Roofing Talk<br />
CHALLENGES & OPPORTUNITIES IN<br />
THE YEAR AHEAD<br />
James Talman (pictured), CEO of NFRC, discusses the roofing trade association’s priorities<br />
and ambitions over the next twelve months.<br />
<strong>2024</strong> will be a year of change and<br />
transformation to the landscape in which<br />
the roofing industry operates. The<br />
Construction Products Association (CPA) predicts<br />
limited recovery to construction output this year,<br />
but it will still be all change on regulation,<br />
competency, and perhaps much more after the<br />
promised general election.<br />
NFRC’s goals are thus angled to support<br />
Members through these challenges, whilst<br />
maintaining a mission to proactively take on<br />
long-term and future issues for the industry.<br />
Skills and labour<br />
Ongoing feedback from Members and data from<br />
our quarterly State of the Roofing Industry survey<br />
supports that labour will remain a challenge into<br />
<strong>2024</strong>. Many will need to take action to keep their<br />
entitlement to a CSCS card once ‘Grandfather<br />
Rights’ have ended, and the NFRC Assessment<br />
Service is one of the providers that can deliver<br />
site-based assessment to make sure experienced<br />
operatives can carry on as usual.<br />
We are also expanding our efforts to provide<br />
information to young people, parents and career<br />
changers on the opportunities available within<br />
the roofing industry via the NFRC Careers<br />
Service, and <strong>2024</strong> will see us embark on<br />
actioning the first parts of a comprehensive Skills<br />
Strategy in response to industry needs. This will<br />
fit into wider initiatives such as working with<br />
NHBC and the HBF to develop on-site roofing<br />
masterclasses, which were valuably influenced<br />
by learnings from the RoofCERT programme on<br />
more common gaps in knowledge for operatives.<br />
Poor payment practices<br />
The risk of having to cease trading will be a<br />
concern for some businesses in the coming<br />
months as economic conditions look<br />
unlikely to improve at any great speed.<br />
Late payments and retentions are an<br />
unacceptable contributing factor to<br />
many insolvencies, and we will be<br />
continuing our campaign on the importance<br />
of ending cash retentions in <strong>2024</strong>. There are<br />
several strands to this topic and a priority is to<br />
end abuse of the current process. Access to cash<br />
is crucial to businesses’ investment in skills,<br />
technology, and their survival.<br />
Solar surge<br />
Sustainability, and translating green ambitions<br />
into practical measures to support the roofing<br />
industry, will continue to be in focus. For<br />
example, NFRC has participated in the<br />
Government's review of substantially increasing<br />
the use of solar PV, of which obviously roofing has<br />
a key role to play. It is vital that solar design and<br />
installation on rooftops is done by individuals<br />
with the relevant roofing expertise.<br />
Competence counts<br />
However, the biggest change in construction,<br />
perhaps for generations, is now upon us.<br />
Building safety, and its associated<br />
requirements regarding competency, will have<br />
fundamental impacts on how we build from<br />
now on. The onus to get this done starts at the<br />
top, with competency requirements for principal<br />
designers and contractors enacted and the<br />
register of building control professionals live from<br />
the 1st April <strong>2024</strong>. Initiatives such as the Code<br />
for Construction Product Information and<br />
widescale efforts to get operatives assessed for<br />
their levels of competency are key actions this<br />
year. The industry needs to take small, regular<br />
steps to higher standards. NFRC is actively<br />
working with the Building Safety Regulator (BSR)<br />
and relevant stakeholders in setting<br />
relevant competency standards.<br />
Our NFRC Competent Person Scheme<br />
(CPS) business, which now sits under<br />
the responsibility of the BSR, has a key<br />
role to play in certifying compliance and<br />
introducing mandated individual competencies.<br />
Contractors who are registered with CPS are<br />
increasingly seeing the benefit of their third-party<br />
accreditation which is an essential requirement in<br />
the regulated market. We are also continuing to roll<br />
out inspections of NFRC Trade Members through<br />
our CPS business, providing third-party<br />
independence and impartiality.<br />
In addition to these areas of work, NFRC as a trade<br />
association will always be there to help and advise<br />
our Members with technical guidance, finding the<br />
right people for your business, and much more. We<br />
will continue to encourage community,<br />
cooperation, and the celebration of excellence<br />
through our regions, with the UK Roofing Awards,<br />
skills competitions – including this year’s<br />
international championship in Switzerland – and<br />
the many opportunities to get more involved in the<br />
work of your trade association.<br />
Hence, while <strong>2024</strong> may present challenges, a<br />
wealth of opportunities certainly remain to take<br />
your business and the industry in the right<br />
direction. Those who commit to developing the<br />
skills and competency of their workforce and to<br />
following the emerging regulatory framework,<br />
should reap the rewards. If you need guidance to<br />
do so, you know where we are.<br />
Contact NFRC<br />
020 7638 7663<br />
www.nfrc.co.uk<br />
NFRC<br />
16 TC FEBRUARY <strong>2024</strong>
Skills & Development<br />
BUILDING NEW HORIZONS: THE<br />
IMPORTANCE OF APPRENTICESHIPS<br />
In this column for Total Contractor, Fraser Biles of BMI UK & Ireland explores the role of<br />
apprenticeships in nurturing the next generation of roofers, and points to the importance<br />
of events like the BMI Apprenticeship of the Year competition which takes place in July...<br />
Today’s roofing industry is shaped by<br />
traditional skills, seamlessly integrated with<br />
new techniques and technologies that are<br />
supporting the transformation of roofscapes<br />
across the country. Apprenticeships play a vital<br />
role in safeguarding this winning combination,<br />
with new industry entrants learning directly from<br />
experienced contractors, ensuring practical skills<br />
and insights are passed on to the next generation.<br />
This fuels the development of a highly skilled<br />
workforce for an industry that requires technically<br />
complex skills.<br />
National Apprenticeship Week, the annual<br />
celebration of the importance of apprenticeships<br />
for individuals and businesses, encapsulates the<br />
value of this route into the industry. This year, the<br />
celebration is framed by the theme of ‘skills for<br />
life’, reflecting the transformational impact that<br />
successful apprenticeships can have on careers.<br />
This is especially true in the roofing industry,<br />
where craft and passion combine to underpin<br />
quality installations time after time.<br />
Fraser Biles of<br />
BMI UK & Ireland.<br />
At BMI, we have long believed in the power of<br />
training and apprenticeships in building the<br />
workforce of tomorrow. Through the BMI Academy,<br />
we are dedicated to delivering industry-leading<br />
training to professionals right across the industry.<br />
To directly support colleges and training centres in<br />
delivering training, the Academy offers a dedicated<br />
engagement programme, sharing expertise and<br />
resources for the benefit of apprentices.<br />
But supporting apprenticeships is only one part of<br />
Euan Forsyth was<br />
crowned BMI Apprentice<br />
of the Year 2023 in the<br />
Pitched Roofing category.<br />
the puzzle. Celebrating the achievements of new<br />
entrants to the industry is just as important –<br />
something that we, together with employers and<br />
training colleges, do through the annual BMI<br />
Apprentice of the Year competition.<br />
Now in its seventh year, the competition is set to<br />
celebrate the most promising talent coming into the<br />
industry today, and provides an opportunity for<br />
individuals to showcase their skills on the national<br />
stage. This year, the competition is set around the<br />
theme of ‘building new horizons’, which<br />
demonstrates the potential of apprenticeships in<br />
roofing – both for apprentices and their employers.<br />
We have seen how apprentices embarking on<br />
their careers in roofing have the full support of<br />
their employers, as well as their colleges and<br />
training centres, helping them to build the skills<br />
to carve out a successful career. Naturally, there<br />
are clear benefits for their employers, too. Like<br />
much of the construction industry, roofing is<br />
subject to widespread skills shortages, but these<br />
gaps can be filled through successful<br />
apprenticeship programmes. For roofing<br />
businesses investing in apprenticeships and<br />
training, this can result in a reliable supply of<br />
talent that can position their businesses for<br />
success over the long-term.<br />
This year’s Apprentice of the Year competition opens<br />
for entries on <strong>February</strong> 5th, so head to<br />
www.bmigroup.com/uk/bmiacademy/apprentice-of-the-year<br />
for details on<br />
how to enter.<br />
Contact BMI UK & Ireland<br />
www.bmigroup.com/uk/<br />
BMI UK & Ireland<br />
18 TC FEBRUARY <strong>2024</strong>
MANUFACTURERS OF<br />
PVC SINGLE PLY<br />
MEMBRANES<br />
Agrément Certificate<br />
14/5118<br />
Trevissome Park - Installed by Pellow Flat Roofing<br />
Alongside our extensive range of flat roofing materials, our dedicated<br />
teams offer a collection of services to support your flat roofing projects<br />
from start to finish:<br />
Installation Training Courses<br />
hosted by expert technicians.<br />
Specification, calculation, &<br />
tapered scheme services.<br />
Site visits, roof surveys, core<br />
samples, adhesion tests, etc.<br />
Regular site inspections<br />
throughout your project.<br />
CPD Presentations by our<br />
Specification Team.<br />
10 to 35 year warranties,<br />
with options for IBGs.<br />
uksales@danosa.com<br />
www.danosa.co.uk
Ask A. Proctor<br />
BREATHER MEMBRANES & ROOFING<br />
UNDERLAYS: WHAT’S THE DIFFERENCE?<br />
The team A. Proctor Group explain all...<br />
Many people use these terms<br />
interchangeably. BS 5250:2021,<br />
Management of moisture in<br />
buildings – Code of Practice, defines a<br />
breather or vapour permeable membrane as<br />
one with a vapour resistance lower than<br />
Sd 0.12m (0.6MNS/g). These are generally<br />
considered walling<br />
membranes.<br />
Underlays are then split into<br />
two main categories, High<br />
Resistance, or HR underlays<br />
and Low Resistance, or LR<br />
underlays. HR underlays are equivalents to the<br />
traditional 1F felts and will require full ventilation<br />
below them. LR Underlays must have a vapour<br />
resistance below Sd 0.05m (0.25MNS/g).<br />
There are other key performance criteria that are<br />
required, i.e. water resistance. Walling underlays<br />
require a minimum Water Hold Out Classification<br />
of W2, whereas roof underlays are required to be<br />
W1 which is more onerous to achieve. A further<br />
distinction is the air permeability or airtightness<br />
of the underlay, both have benefits depending on<br />
the design.<br />
What are the benefits of air permeability<br />
in a roof?<br />
Air permeable low resistance (APLR) underlays<br />
allow air to circulate through the layers of the<br />
membrane, in combination with having low<br />
vapour resistance. Airtight underlays, the most<br />
common type in the UK, allow vapour to disperse<br />
via diffusion through the layers, having been<br />
made with a microporous film layer in the middle<br />
of the underlay. Air permeable underlays allow<br />
vapour dispersal by two mechanisms, diffusion,<br />
as well as in the air passing through the underlay.<br />
This is down to the unique meltblown core.<br />
Images: Proctor Air Valley detail (above),<br />
eaves detail (left).<br />
Assessments carried out by<br />
BRE and Glasgow<br />
Caledonian University have<br />
shown that air movement<br />
through the underlay increases the vapour<br />
removal from the roof and can be similar to that<br />
achieved by both eaves and ridge ventilation. The<br />
ability to remove ventilation from the roof can be<br />
a huge benefit with the increased need for<br />
insulation, and the difficulty in maintaining<br />
ventilation pathways, stopping cold bridging, as<br />
well as making complex and historic roofs easier<br />
to detail and more aesthetically pleasing.<br />
“Underlays are NOT<br />
designed to be primary<br />
weatherproofing<br />
layers – they should<br />
not be relied on as a<br />
temporary protection<br />
during adverse<br />
weather”<br />
If you are building a project that is NHBC<br />
registered, the use of an air permeable underlay<br />
can also mitigate the requirement for high level<br />
ventilation in cold roof constructions – this<br />
ventilation is required where an airtight underlay<br />
is used.<br />
Proctor Air falls into the category of APLR and<br />
therefore can be used without vents. For<br />
project specific advice our Technical Team<br />
are on hand to review your designs.<br />
How does Proctor Air perform in<br />
extremes of weather?<br />
Developing Proctor Air allowed us to look at<br />
what the membrane needed to do, which<br />
therefore meant we could enhance attributes that<br />
are important for the UK climate, i.e. wind, rain<br />
and UV exposure.<br />
Underlays are NOT designed to be primary<br />
weatherproofing layers, and as per BS<br />
5534:2014, Code of practice for slating and tiling,<br />
they should not be relied on as a temporary<br />
protection during adverse weather, such as<br />
storms and freeze/thaw cycles. In these<br />
conditions, especially re-roofs, the use of a<br />
protection layer, i.e. tarpaulin, should be<br />
considered. UV exposure guidance relates to the<br />
effects of sunlight on the membrane and does not<br />
mean that the membrane will remain water<br />
resistant for this length of time. Proctor Air<br />
contains hydrophobic additives in all three layers<br />
to help improve water resistance.<br />
Wind uplift resistance is also excellent with<br />
Proctor Air. At 345mm batten centres it can be<br />
used in Zones 1-4 in the UK and with centres at<br />
250mm, or laps sealed with Wraptite Tape, it can<br />
be used in Zones 1-5.<br />
Does Proctor Air have a warranty?<br />
Yes, it does. We are delighted to be able to offer a<br />
15-year warranty on Proctor Air. Details of this can<br />
be found in our literature and installation guide.<br />
Contact A. Proctor Group<br />
A.Proctor Group Ltd.<br />
proctorgroup.com<br />
20 TC FEBRUARY <strong>2024</strong>
ONDULINE® BATTEN<br />
CLOAKING PIECE<br />
ISOLINE® LOW LINE<br />
Bituminous corrugated underlay sheet,<br />
made from 50% recycled fibres. Robust with<br />
guaranteed waterproofing for 30-years.<br />
ONDULINE® EAVES<br />
VENTILATOR STRIP<br />
ONDUTISS® AIR<br />
Highly vapour permeable, breathable<br />
membrane with superior tensile<br />
strength and durability.<br />
ONDULINE® EAVES TRAY<br />
ISOLINE® LOW LINE<br />
Complete sub-roof system for low pitch roofs<br />
A unique under roof waterproofing system that can be<br />
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onduline.co.uk<br />
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Ventilation<br />
IN-ROOF SOLAR ROOFING: SHINING A<br />
LIGHT ON NHBC’S NEW GUIDANCE<br />
Matt Neary, from leading roofing products manufacturer Glidevale Protect, takes a closer<br />
look at the new NHBC guidance and the choice of roofing underlay and ventilation solutions<br />
available to help lower condensation risk when using integrated, in-roof solar PV panels.<br />
At the end of 2023 the National House<br />
Building Council (NHBC) published<br />
new standards for <strong>2024</strong> which<br />
included guidance on the use of integrated<br />
in-roof solar PV panels, how they are<br />
classified and what associated ventilation<br />
strategies are therefore required, in<br />
alignment with requirements set<br />
down in BS 5250. The standards<br />
apply with immediate effect to<br />
every new home registered with<br />
the NHBC where the foundations are<br />
started on or after 1st January <strong>2024</strong>.<br />
So, what do contractors need to know?<br />
Air permeable or air impermeable? That is<br />
the question!<br />
It’s important to have clarity on whether roofs<br />
with solar panels are classed as being air<br />
permeable or air impermeable, and the new<br />
NHBC guidance aims to address this head on.<br />
The new NHBC Standards contain revisions to<br />
clause 7.2.15 ‘Ventilation, vapour control and<br />
insulation’, stipulating that where arrays of<br />
integrated in-roof solar PV panels are used, the<br />
whole roof covering should be treated as air<br />
impermeable unless the solar panel<br />
manufacturer is able to demonstrate their system<br />
is air permeable.<br />
As a result, roofs with integrated PV panels will<br />
now be classed as air impermeable as standard,<br />
even if the roof tiles themselves are air permeable.<br />
So a small number of PV panels would render the<br />
whole roof impermeable and should be treated as<br />
such, unless it can be proven otherwise. And as an<br />
air impermeable roof covering, there is a higher<br />
risk of interstitial condensation on the underside of<br />
Left: Matt Neary. Above: Protect A1 Solar underlay.<br />
the underlay, the external covering and<br />
behind the solar panel arrays if the correct<br />
ventilation strategy is not used.<br />
What does this mean in terms of roofing<br />
underlays?<br />
When a low vapour resistance (LR) membrane or<br />
vapour permeable ‘breather’ membrane underlay<br />
is used on a warm or cold roof in conjunction with<br />
integrated, in-roof solar PV panels, Glidevale<br />
Protect’s recommended best practice is to install<br />
counter battens. Using 25mm deep counter<br />
battens with a minimum free ventilation area of<br />
not less than 25,000mm²/m at eaves or low level,<br />
and 5,000mm²/m continuous air gap each side of<br />
the ridge or at high level is advised. On a cold<br />
roof, ventilation is also required under the<br />
membrane at 7,000mm²/m at eaves level with a<br />
normal ceiling, or 3,000mm²/m at eaves with a<br />
well sealed ceiling. Alternatively, it is also<br />
accepted to ventilate with 5,000 mm²/m at ridge<br />
instead of 3,000 mm²/m at eaves if there is a<br />
well sealed ceiling. Without the use of counter<br />
battens with an LR underlay, the risk of interstitial<br />
condensation forming on the underside of the<br />
solar panels increases, as the water vapour will<br />
pass through the membrane but cannot escape<br />
into the atmosphere.<br />
One alternative option when using an LR<br />
underlay on a cold roof however, as detailed<br />
in BS 5250, is not to counter batten but<br />
ventilate underneath the underlay as if it was<br />
an HR underlay, thereby requiring eaves level<br />
ventilation and additional ridge ventilation,<br />
the latter only required subject to the roof’s<br />
pitch, span and if classified as a mono pitch.<br />
An alternative solution to using an LR underlay<br />
where in-roof solar is being installed would be to<br />
use a high vapour resistance (HR) or impermeable<br />
non-breather underlay which is designed to prevent<br />
moisture from transferring through the underlay<br />
and reaching the exterior layers above the<br />
membrane, thereby not requiring the use of counter<br />
battens. Ventilation would still be required<br />
underneath the underlay on both cold and warm<br />
roofs, with cold roofs requiring 10,000mm²/m at<br />
eaves level and 5,000mm²/m at ridge, the ridge<br />
ventilation only being required when the roof pitch<br />
is over 35 degrees, a span over 10m or a mono<br />
pitch. Warm roofs require additional airflow with<br />
25,000mm²/m required at eaves or low level and<br />
5,000mm²/m at ridge or high level.<br />
The key takeaways<br />
When it comes to installing integrated PV panels<br />
as part of the roofing structure, the appropriate<br />
ventilation strategy needs to be factored in from<br />
the outset. To discuss your individual project<br />
requirements and how the updates to the NHBC<br />
Standards will affect new roofing specifications<br />
using in-roof solar PV, please contact Glidevale<br />
Protect at technical@glidevaleprotect.com or<br />
0161 905 5700.<br />
Contact Glidevale Protect<br />
www.glidevaleprotect.com<br />
22 TC FEBRUARY <strong>2024</strong>
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Advertorial<br />
DON & LOW INVESTIGATES KEY<br />
FACTOR TRIGGERING ROOFING<br />
MEMBRANE LEAKS<br />
Don & Low, the UK's only vertically integrated manufacturer and creator of Roofshield®,<br />
became aware of a number of water leakage cases over the past year, the majority of which<br />
occurred around the time powerful storms Babet and Ciaran struck the country. The<br />
company has initiated a continuing investigation into this problem, and Will Campbell,<br />
Head of Sales at Don & Low, discusses some of the latest findings…<br />
Will, I was hoping you could fill us in on<br />
the background of this investigation. For<br />
what reasons did Don & Low choose to<br />
become involved in solving this roofing<br />
membrane leakage puzzle?<br />
Don & Low manufactures<br />
Roofshield, a leading air and<br />
vapour permeable roofing<br />
underlay<br />
For us at Don & Low, it was the right thing to do;<br />
our duty to the construction industry, which we<br />
have served tirelessly for nearly three decades.<br />
Don & Low has maintained a steadfast<br />
commitment to ethical decision-making,<br />
regulatory compliance, and societal and<br />
environmental accountability ever since its<br />
inception in 1972.<br />
So, given that Roofshield® is the leading air and<br />
vapour permeable roofing underlay, and is widely<br />
used across the UK and Ireland, it was hardly<br />
surprising that we were among the first to get<br />
informed about cases of roofing membrane<br />
leakages across the UK. As a responsible<br />
member of the construction industry, we had to<br />
investigate this issue.<br />
What led Don & Low to the discovery of<br />
the battens problem?<br />
Don & Low is the UK’s only vertically integrated<br />
manufacturer, which means we have total control<br />
over our roofing membrane production. Thus, we<br />
were very confident in Roofshield’s performance<br />
and reliability, especially considering that it has<br />
been manufactured exclusively and with the<br />
utmost precision in our Forfar facilities since<br />
1996, using the finest materials that ensure its<br />
24 TC FEBRUARY <strong>2024</strong>
exceptional properties. However, even if it was<br />
clear to us that Roofshield was not to blame, we<br />
still needed to figure out why the water leak<br />
incidents occurred in the first place. There must<br />
have been some reason.<br />
Through ongoing testing, it has been established<br />
that leaks in membranes are frequently tied to<br />
the presence of timber treatments on certain<br />
battens commonly used in roofing applications.<br />
Notably, specific chemical components within<br />
timber treatments potentially impact all synthetic<br />
membranes. This testing, stemming from Don &<br />
Low’s technical expertise, reveals a significant<br />
concern affecting the entire roofing industry.<br />
But why now? What’s changed between<br />
2022 and 2023?<br />
Several factors have contributed to the increased<br />
incidence of treated timber causing this effect.<br />
The change in the supply chain for roofing<br />
battens, affected by COVID-19 disruptions and<br />
geopolitical events like the Ukraine-Russia war,<br />
has led to an emergence of non-traditional batten<br />
manufacturers, and these are coupled with<br />
different treatment processes and exceptional<br />
rainfall. During 2023, the UK timber market has<br />
been grappling with quality issues and incorrect<br />
grading to BS 5534.<br />
“Contractors should<br />
adhere to the<br />
installation guidelines<br />
and best practices”<br />
Don & Low’s ongoing testing into issues of leaks<br />
has established a link between the presence of<br />
certain chemical components within timber<br />
treatments leaching from saturated battens,<br />
affecting the performance of membranes. A<br />
common factor found throughout the majority of<br />
investigated installations was the presence of<br />
contamination on/in the membranes that<br />
compromised the water holdout performance.<br />
So, it is evident that we are not discussing<br />
a Roofshield issue.<br />
Absolutely. We recently commissioned the BRE, the<br />
UK’s renowned science-led construction research<br />
facility, to subject Roofshield® to extreme weather<br />
testing. The testing, designed for primary roof<br />
coverings, was carried out with dry battens known<br />
not to contain chemicals that compromise water<br />
holdout, and a variety of pitch angles were used to<br />
assess the effect on low and high pitch roofs. The<br />
results were conclusive: Roofshield® showed zero<br />
leaks, exceeding the required standards for airpermeable<br />
roofing underlays.<br />
Designed and manufactured in the UK,<br />
Roofshield® has been tried, tested, and trusted<br />
by the industry since 1996, and is certified by the<br />
BBA. All Don & Low products undergo rigorous<br />
testing, and these findings underscore that<br />
Roofshield remains reliable. Don & Low, as<br />
industry leaders in vertical manufacturing of<br />
construction membranes, stand behind its<br />
integrity.<br />
What suggestions do you have for<br />
contractors in consideration of your<br />
ongoing investigation?<br />
Contractors should adhere to the installation<br />
guidelines and best practices. Battens should be<br />
dry to prevent chemicals from leaching onto the<br />
membrane, and battens should not be treated in<br />
situ. We have observed the growing reports of<br />
skin issues by roofing contractors online and<br />
would advise wearing the correct PPE. Further<br />
enquiries can be directed to our construction<br />
hotline at 0808 169 4444, where our team of<br />
experts is always ready to assist.<br />
Contact Don & Low<br />
www.donlow.co.uk<br />
Don & Low Ltd.<br />
FEBRUARY <strong>2024</strong> TC 25
While it is good to have a choice of so<br />
Blue-Green Roofs<br />
NAVIGATING THE GREENER SIDE<br />
OF ROOFING<br />
Britain’s green and blue roof markets are brimming with potential. Justin Pitman, Sales<br />
Director for Proteus Waterproofing, points out that as long ago as 2017, industry experts<br />
were suggesting market growth of 17% year on year for the green roof sector alone – and he<br />
says they’ve not been wrong. According to Justin, this demand has created a veritable army<br />
of different specialists from designers and landscapers, to waterproofing experts and<br />
maintenance providers, but in this article Justin asks has this in turn caused a problem for<br />
building owners and end users?<br />
many experts, experience has shown<br />
that this kind of fragmentation can lead<br />
to miscommunication, inefficiencies and<br />
ultimately, diffused accountability if something<br />
goes wrong – but it does not have to be like that.<br />
As the market becomes more sophisticated and<br />
demanding, it is clear that more and more<br />
building owners are looking for the one-stopshop<br />
to cover every facet of their green or blue<br />
roof journey. For companies like ours it<br />
starts at the initial design and<br />
specification stage, where we<br />
collaborate with architects and<br />
landscapers to develop a customised<br />
solution that aligns with their aesthetic,<br />
functional, and budget goals.<br />
It continues with meticulous installation by our<br />
highly trained and accredited contracting teams.<br />
The building owner then receives one warranty<br />
covering every aspect of the project, to ensure<br />
that we are their trusted partner every step of the<br />
way.<br />
As already stated, the UK's green and blue roof<br />
markets offer massive potential for growth and<br />
the ability to improve our environment. While<br />
estimating precise figures for market size can be<br />
challenging, due to the fragmented data<br />
available, we can identify several positive trends.<br />
The UK green roof market was estimated to be<br />
worth £58 million in 2017 (source: Living Roofs).<br />
Left: Justin Pitman. Above: Completed project by Proteus Waterproofing.<br />
While data on dedicated blue roof<br />
market size is relatively scarce, a CIRIA<br />
(Construction Industry Research and Information)<br />
report in 2018 estimated the broader market for<br />
rainwater harvesting and SuDS (Sustainable<br />
Drainage Systems) technologies in the UK to be<br />
around £3 billion. Given the growing interest in<br />
blue roofs as part of integrated solutions, it's safe<br />
to assume a significant portion of this market<br />
value is attributable to blue roof systems.<br />
This means that the future of both green and blue<br />
roofs in the UK looks incredibly promising. Market<br />
analysts predict significant growth trajectories<br />
driven by several factors. Government initiatives<br />
like SuDS requirements and grant programmes<br />
for rainwater harvesting are expected to stimulate<br />
demand for both green and blue roofs still further.<br />
With extreme weather events becoming more<br />
frequent, the benefits of green and blue roofs for<br />
mitigating urban heat island effects, managing<br />
stormwater runoff, and improving air quality are<br />
also gaining increased recognition.<br />
Based on these trends, projections indicate that<br />
the UK green roof market could reach<br />
£140 million by 2028, representing a substantial<br />
increase from the current size (source: Living<br />
Roofs). In broader terms we can see a<br />
£5-10 billion market size by 2030 for rainwater<br />
harvesting and the SuDS sector, with a significant<br />
portion likely attributable to blue roof systems<br />
(source: CIRIA).<br />
So, we can see that the UK’s green and blue roof<br />
landscapes are flourishing. At Proteus<br />
26 TC FEBRUARY <strong>2024</strong>
Waterproofing, we're not just witnessing this<br />
transformation – we like to think that we are<br />
actively helping to shape it.<br />
As experts in this area, we recognised a long time<br />
ago that gone are the days of strictly green or<br />
blue roof – the future lies in blending the best of<br />
both worlds. Hybrid roofs are emerging as the<br />
stars of the show, combining vegetation with<br />
integrated blue roof elements such as retention<br />
ponds, storage tanks, and treatment systems.<br />
This synergistic approach optimises water<br />
management, creates stunning aesthetics, and<br />
fosters diverse ecosystems.<br />
The green and blue roof revolution is also being<br />
fuelled by a wave of technological advancements.<br />
Smart irrigation systems, automated monitoring<br />
tools, and even sensors embedded in living layers<br />
are optimising resource management, enhancing<br />
plant health, and providing real-time data for<br />
proactive maintenance.<br />
“With extreme weather events becoming more<br />
frequent, the benefits of green and blue roofs are<br />
also gaining increased recognition”<br />
At Proteus Waterproofing, we understand the<br />
immense potential of these innovative solutions.<br />
As a one-stop-shop for green and blue roofs, our<br />
technical team is able to seamlessly navigate the<br />
design, installation, and comprehensive aftercare<br />
package, with a single, unified warranty for<br />
complete peace of mind. We embrace the latest<br />
technological advancements and materials to<br />
deliver high-performance, efficient, and visually<br />
stunning green and blue roofs.<br />
We prioritise practices that are verified and<br />
certified for their environmental benefits<br />
throughout every stage of the project, minimising<br />
the carbon footprint and maximising the positive<br />
impact of the roof.<br />
Our solutions are designed in compliance with<br />
SuDS requirements, ensuring effective<br />
management of rainwater and contributing to<br />
urban flood prevention.<br />
Without doubt, the UK's green and blue roof<br />
revolution is gathering momentum, driven by<br />
compelling trends, undeniable growth potential,<br />
and a profound desire for a greener future. At<br />
Proteus Waterproofing, we're not just observers –<br />
we're active participants, helping to shape this<br />
landscape with innovation, dedication, and a<br />
deep commitment to sustainability – and this is<br />
just the start of the journey.<br />
Contact Proteus Waterproofing<br />
01268 777871<br />
www.proteuswaterproofing.co.uk<br />
Proteus Waterproofing<br />
For further r<br />
inform<br />
ation<br />
or a hire quotation call<br />
01858 412 100<br />
Email: sales@cookerhire.com<br />
www.cookerhire.com
Project Focus<br />
BESPOKE SYSTEM FROM KALZIP FOR<br />
PASSIVHAUS SCHOOL<br />
Abespoke roofing system from Kalzip<br />
has been chosen for Scotland’s<br />
first Passivhaus School in North<br />
Muirton, Scotland. The system was<br />
chosen for its incredible sustainability<br />
benefits, along with its speed of<br />
installation.<br />
The new £16.5 million school will be built<br />
on the site of the current North Muirton Primary<br />
School and will have a capacity for 500 pupils,<br />
incorporating a nursery and additional support<br />
needs (ASN) provision each with their own<br />
dedicated outdoor space.<br />
The roofing system was developed by Kalzip<br />
alongside architects Architype and Curtis Moore<br />
contractors to achieve these demanding<br />
standards through Kalzip’s thermal modelling and<br />
demonstration of the life cycle of Kalzip’s<br />
products, along with the sustainability of the<br />
system, which were all achieved.<br />
The Passivhaus Standard represents an inclusive<br />
approach to design, aiming to create buildings<br />
that offer exceptional comfort to occupants while<br />
minimizing energy usage for heating and cooling<br />
purposes. The forthcoming school project is<br />
committed to attaining this standard, which will<br />
lead to a substantial decrease of 60-80% in<br />
energy consumption. As a result, this reduction<br />
will contribute to carbon emissions reduction<br />
while simultaneously lowering operational and<br />
maintenance expenses. Achieving the Passivhaus<br />
Standard entails a comprehensive focus on<br />
efficient design and construction practices, as<br />
well as careful material selection to ensure<br />
optimal building efficiency throughout every<br />
phase of the project.<br />
A Kalzip Built Up Insulated System with structural<br />
deck roof was installed on the school with a<br />
U-value of 0.10W/m 2 K to achieve Passivhaus<br />
Artist’s impression: North<br />
Muirton Primary School.<br />
“The Kalzip system is<br />
ideal where speed of<br />
installation on a<br />
project is of utmost<br />
importance”<br />
standards. This system was a bespoke solution<br />
for the school, but the main product is used<br />
predominantly for new build construction,<br />
although it can also be used as a refurbishment<br />
solution in the event of a failed roof, or when<br />
building improvements are being considered.<br />
The Kalzip system is ideal where speed of<br />
installation on a project is of utmost importance.<br />
A non-fragile Kalzip liner sheet can be quickly<br />
installed to provide a temporary weather cover to<br />
allow other trades to work below. The remainder<br />
of the roofing components can then be installed<br />
without affecting the critical path of the<br />
construction programme.<br />
The architectural plans for the building were<br />
meticulously crafted following extensive<br />
consultation with the local community. They will<br />
offer top-notch educational facilities, including 16<br />
classrooms, with an additional two classrooms<br />
reserved for potential future school expansion.<br />
The building will also house provisions for<br />
Additional Support Needs (ASN), group study<br />
rooms, a versatile multi-use hall, a kitchen area,<br />
staff amenities, a multi-use games area (MUGA)<br />
pitch for both school and community use,<br />
and a nursery facility that will operate<br />
throughout 50 weeks each year.<br />
There was some complexity to the project in<br />
which Kalzip provided assistance and early<br />
collaboration was key for this project, with<br />
the design challenges that needed to be<br />
achieved while also working to Passivhaus<br />
standards. There was also some difficulty in<br />
focusing on every element from structure to the<br />
individual fixings as each aspect required precise<br />
U-value calculations, with no room for error, in<br />
which Kalzip’s technical expertise was crucial for<br />
the success of the project.<br />
Councillor Caroline Shiers, Lifelong Learning<br />
Convener, Perth & Kinross Council, said: “This is<br />
a very exciting development as part of the<br />
Council’s work to transform the school estate in<br />
Perth and Kinross. We aim through this project to<br />
both enhance education provision for children in<br />
the north of Perth, but also support a more<br />
environmentally friendly learning and teaching<br />
environment – as one of the first Passivhaus<br />
primary schools to be built in Scotland."<br />
North Muirton also meets the ambitions of Perth<br />
& Kinross Council as they work towards a Zero<br />
Carbon agenda, as the Council’s Interim Chief<br />
Executive, Barbara Renton, explained: “We want<br />
to ensure that our buildings, from offices to<br />
schools, are energy efficient, cost-effective to run<br />
and maintain, and contribute to an improved<br />
environment. Using the Passivhaus Standard for<br />
the new primary school in North Perth enables us<br />
to address all three areas at once through carbon<br />
reduction being built into the design and<br />
construction process.”<br />
Contact Kalzip<br />
Kalzip<br />
www.kalzip.com/en/<br />
28 TC FEBRUARY <strong>2024</strong>
Roofing Updates<br />
CCPI FOCUS FOR SIKA<br />
For further info on all these updates and more, visit www.total-contractor.co.uk<br />
Sika has established itself as an early<br />
adopter of the Code for Construction Product<br />
Information (CCPI), which has been published<br />
to drive higher standards in the presentation<br />
of construction product information within<br />
the manufacturing industry.<br />
Sika is one of the first product manufacturers to<br />
have achieved CCPI verification of its first four<br />
product sets for Single Ply Roof systems (gained<br />
in September), Hot Melt Structural Waterproofing,<br />
Liquid-applied and Reinforced Bituminous Roof<br />
Systems. The company says it maintains a strong<br />
focus on transparency, and by committing to the<br />
code it will provide further independent assurance<br />
and greater confidence in the information<br />
associated to its CCPI-verified product-sets.<br />
“We are delighted that Sika is an early adopter of<br />
the code,” said Mark Gatrell – Head of Business<br />
Unit Roofing for Sika in the UK. “In September we<br />
announced product set verification for our Single<br />
Ply Roof Systems, and now we have the pleasure<br />
of announcing that our Hot Melt Structural<br />
Waterproofing, Liquid-applied and Reinforced<br />
Bituminous Roof Systems have now achieved<br />
verification status. The Code is aiming to drive<br />
the highest standards in product information,<br />
setting a level playing field for all construction<br />
manufacturers to ensure that the information<br />
they provide is clear, accurate, up to date and<br />
unambiguous. We’re proud to be working<br />
proactively with the CCPI to raise standards in<br />
product information management.”<br />
www.sika.co.uk/roofing<br />
SWIFTRIDG & SWIFTRIDG+ SYSTEMS LAUNCHED<br />
Hambleside Danelaw has announced the launch of SwiftRidg and SwiftRidg+, the<br />
manufacturer’s new lead alternative GRP Roll Top Ridge and Hip Systems.<br />
The manufacturer says the patent pending SwiftRidg and SwiftRidg+ (GB Patent Application No:<br />
2308115.1) offer a light and durable alternative to lead, zinc, copper, and galvanised steel roll<br />
systems, and they are designed for use with slate and plain tile roofs at pitches from 20º to 50º.<br />
Tested by BRE to resist wind speeds exceeding 110mph, SwiftRidg and SwiftRidg+ come with a 20-<br />
year service life guarantee and are compliant with the requirements of BS 5534 and BS 8612. Hambleside Danelaw says there is no toxic or<br />
contaminated run off and they can therefore be used in rainwater harvesting systems. These roll top ridge and hip systems comprise of a 3m GRP roll<br />
profile suitable for use on both the ridge and hips with bespoke 3m fixing kits, including a new and unique omega bracket. The SwiftRidg+ kit includes<br />
an additional vent roll component to provide a ventilated option along the ridge in accordance with BS 5250 where required. To view the SwiftRidg and<br />
SwiftRidg+’s data sheet and installation recommendations, head over to www.hambleside-danelaw.co.uk, or contact a member of the team at:<br />
techelp@hambleside-danelaw.co.uk<br />
NEW ELEVATE BRANDED BROCHURES<br />
Following its rebrand, Elevate has launched a suite of newly designed brochures for installers and specifiers.<br />
Formerly known as Firestone Building Products, Elevate was launched in June last year and is now part of the Building Envelope<br />
division of parent company, Holcim. Featuring the Elevate branding, the new brochures detail the company’s long-established EPDM<br />
products, including RubberGard and RubberCover. Elevate RubberGard EPDM is a synthetic rubber single-ply membrane for flat and<br />
low slope roofs. Ideal for the commercial and industrial sectors, it is available in 1.1 and 1.5mm thickness. Designed for smaller<br />
residential flat roofs, Elevate RubberCover EPDM is for applications up to 150 sq m and is available in the same thicknesses as<br />
RubberGard EPDM. The new brochures outline the benefits of each product for installers and specifiers, providing installation advice, guidance on choosing the<br />
right system and details of Elevate’s support from concept to completion. Philip Moors, Managing Director of Elevate UK and Ireland, said: “Although our people,<br />
products and standards have all stayed the same since changing our name to Elevate, a lot of work has been done behind the scenes. This includes updating all<br />
our packaging and marketing materials. The new brochures are the next step in that process, highlighting our brand as well as the extensive benefits of Elevate’s<br />
EPDM roofing membranes for installers and specifiers working across sectors.” Downloaded the new brochures: https://www.holcimelevate.com/uk-en<br />
FEBRUARY <strong>2024</strong> TC 29
Roofing Updates<br />
SOUND AND DRAINAGE PROTECTION<br />
CMS Danskin Acoustics has a new sound<br />
reducing underlayment product specially<br />
developed for external surfaces, such as on<br />
rooftops, terraces and balconies, which also<br />
provides rainwater drainage and membrane<br />
protection.<br />
‘REGUPOL sound and drain 22’, exclusively<br />
available from CMS Danskin Acoustics in the UK,<br />
is a polyurethane elastomer composite with a<br />
dimpled profile on the underside to facilitate<br />
drainage and a geotextile-laminated top to<br />
prevent dirt penetration. It provides impact<br />
sound insulation with effective acoustic results<br />
in a range of different structures.<br />
CMS Danskin Acoustics’ Ian Bull said: “Sound<br />
insulation on roof terraces is just as important as<br />
indoor sound insulation because structure-borne<br />
sound from footfall or services plant, such as<br />
rooftop air conditioning units and heat pumps, is<br />
transmitted from the external surface to the<br />
building interior. However, most sound impact<br />
materials are unsuitable for outside<br />
applications; REGUPOL sound and drain<br />
has been developed for outdoor use.”<br />
‘REGUPOL sound and drain 22’ provides highimpact<br />
sound insulation levels of 28 to 37dB<br />
depending on the specific build-up, is rot-proof,<br />
largely resistant to ageing, gives good drainage<br />
and water flow capacity and functions as a<br />
protective layer.<br />
Acoustic test data is available for six floor<br />
assemblies, including varying thicknesses of<br />
concrete tiles, wooden decking boards and<br />
ceramic tiles, as well as test data confirming<br />
compressibility, fire, thermal and moisture<br />
behaviour and resistance to ageing.<br />
Made from recyclate, ‘REGUPOL sound and drain<br />
22’ is 15mm thick and has a load bearing<br />
capacity up to 50 kN/m².<br />
Projects to date include The<br />
Marienturm in Frankfurt am Main, a 38-<br />
storey building primarily occupied by offices, and<br />
36-38 Berkeley Square, a new office and retail<br />
development in London’s Mayfair.<br />
‘REGUPOL sound and drain 22’ is a Bronze level<br />
Cradle to Cradle Certified product. Cradle to<br />
Cradle is a multi-attribute standard for designing<br />
and making products that enable a healthy,<br />
equitable and sustainable future. Cradle to<br />
Cradle Certified is a registered trademark of the<br />
Cradle to Cradle Products Innovation Institute.<br />
Distributed in the UK by CMS Danskin Acoustics,<br />
REGUPOL products are specified worldwide for<br />
their noise and vibration reduction properties.<br />
www.cmsdanskin.co.uk<br />
WHITESALES NAVIGATES HERITAGE CHALLENGES<br />
Whitesales has replaced the original timber rooflights in the Grade II* listed Birmingham Museum & Art<br />
Gallery with new bespoke aluminium rooflights, ready for the reopening of the museum during <strong>2024</strong>.<br />
Built in 1885, the Birmingham Museum & Art Gallery has long housed treasures from the likes of Edward Burne-<br />
Jones, William Morris and Dante Gabriel Rossetti, and has an unrivalled 2,000 piece Pre-Raphaelite collection.<br />
However, it closed in November 2022 for essential maintenance which has included electrical work, upgrading of<br />
the heating, lift replacement and roof repairs. The new rooflights were a key element in the roof repairs, so the<br />
challenge for Whitesales was to supply and install high performance, energy efficient replacements for the timber originals, which satisfied the<br />
constraints of the Grade II* listing and met the requirements of the City Council’s conservation office. The solution they developed included one bespoke<br />
Whitesales Monopitch 2610mm x 1260mm rooflight with vertical front face and sides set at 350mm, and two bespoke lantern rooflights with sides set at<br />
440mm and 450mm, all finished in an anthracite grey on the exterior and white on the interior, and all CWCT TN92 Class 2 non-fragile to ensure the<br />
safety of anyone walking on the roof. Whitesales worked closely with contractors ISG throughout the design and specification process. They visited the<br />
site for a survey, attended design meetings and delivered a sample to the site so that everyone on the client team was happy with what was being<br />
supplied in terms of both performance and aesthetics. They also ensured that the rooflights were all fabricated and safely delivered to site in<br />
manageable-sized elements to take into account the fact that access in and around the city centre site was difficult. Whitesales has a long standing<br />
relationship with ISG, based on the quality of the work carried out on previous projects. For ISG’s Trainee Construction Manager Ryan Linnecor,<br />
Whitesales impressed with their knowledge and experience on heritage schemes. He commented: “Whitesales had a clear understanding of the Grade<br />
II* listed scheme and the constraints that presented. They impressed us once again with their approach on how to undertake the work sympathetically<br />
and the finished installation is of a very high quality.” www.whitesales.co.uk<br />
30 TC FEBRUARY <strong>2024</strong>
INNOVATING FOR 45+ YEARS<br />
GB Patent Application<br />
No. 2308115.1<br />
INTRODUCING<br />
TM<br />
&<br />
TM<br />
A GRP alternative to the traditional<br />
lead, zinc and galvanised steel roll<br />
top ridge and hip system’s, with<br />
clipable components and a unique<br />
omega bracket. Provided in kits<br />
with a ventilated application<br />
option at ridge level.<br />
READ MORE<br />
FEATURES AND BENEFITS<br />
• Offers a light and durable alternative to lead,<br />
zinc and copper systems<br />
• Suitable for ridge and hip applications on roof<br />
pitches from 20º to 50º<br />
• Faster installation compared to metal alternatives<br />
• Suitable for warm and cold roof applications<br />
• Ventilated option at ridge level<br />
• No toxic or contamination run off; can be<br />
used for rain water harvesting<br />
• No theft value<br />
hambleside-danelaw.co.uk<br />
PITCHED ROOFING
Project Focus<br />
TOP MARKS<br />
We take a closer look at a student accommodation project<br />
where Proteus Facades provided the ideal facade solution...<br />
Anew 396-bedroom student accommodation<br />
building, in the west of Edinburgh city centre,<br />
has become the latest project to benefit from<br />
aluminium cladding panels manufactured by<br />
Proteus Facades.<br />
The £20.4m Westfield Road project in the heart of<br />
Edinburgh’s western district comprises of seven<br />
storeys, with Proteus HR crowning off the upper<br />
level. The project in Golgie, which was built on the<br />
site of an unused office and car showroom, offers a<br />
variety of enriching experiences onsite including an<br />
open-air private courtyard to the rear, rain gardens,<br />
onsite gym, 24-hour reception, games room and an<br />
‘activated’ façade at street level. This is achieved<br />
via the strategic placement of communal amenity<br />
areas along Westfield Road and Westfield Avenue,<br />
together with large format glazed screens, which<br />
ultimately will have a progressive influence on the<br />
wider area. Its location provides the occupants a<br />
space close by to all the primary university<br />
campuses, Arthur’s Seat, Edinburgh Castle, and for<br />
sports fans Murrayfield Stadium is across the road!<br />
The structure is said to represent a seamless fusion<br />
of contemporary design and be a tribute to the<br />
neoclassical elegance found in Edinburgh’s New<br />
Town architecture. Embracing the uniformity and<br />
classical elements emblematic of Georgian<br />
architecture, this project pays homage to the city’s<br />
heritage while forging ahead in urban development.<br />
Westfield student accommodation is a singular<br />
block, designed to deliver an inspiring vision. The<br />
overall design was developed with the surrounding<br />
context in mind and was achieved by creating<br />
several datum lines which sympathetically respond<br />
to the neighbouring buildings. A pivotal element in<br />
achieving this synthesis of tradition and innovation<br />
was the application of Proteus HR 1.0mm precoated<br />
aluminium with Arconic Bronze Metallic and<br />
Arconic Silver Grey. The use of aluminium cladding<br />
allowed Fletcher Joseph Associates to get a<br />
naturally beautiful facade which resembled Scots<br />
slate and created a living surface that dances with<br />
the interplay of natural and artificial light. This<br />
deliberate design philosophy is said to create a<br />
warm and inviting ambience, which is crucial for<br />
evoking a sense of comfort and belonging,<br />
especially for students seeking a home from home.<br />
Pre-finished aluminium<br />
The installation of Proteus HR aluminium cladding,<br />
orchestrated by DNF Roofing & Cladding in<br />
partnership with Graham Construction, emerged as<br />
a defining aspect of the building’s current appeal,<br />
and is said to have become a key feature of the<br />
building’s design as it gives a sleek and modern<br />
look, while also providing excellent protection from<br />
the elements.<br />
Proteus HR is a market leading rainscreen cladding<br />
system that comprises an aluminium honeycomb<br />
core that has been structurally bonded between two<br />
thin gauges of lightweight metal skin. Proteus HR<br />
rainscreen cladding system is available in a wide<br />
range of materials and finishes, including<br />
aluminium, bronze, copper, brass, zinc, stainless<br />
steel, and various other options, which gives<br />
complete design freedom and can significantly<br />
enhance the visual aesthetic of a project. Fletcher<br />
Joseph Architects specified aluminium on this<br />
project for its adaptability and showcased its<br />
prowess by accommodating various designs while<br />
demanding minimal upkeep.<br />
Not only does pre-coated aluminium enhance the<br />
visual appeal, but it also provides robust protection<br />
against diverse weather conditions. It’s PvdF<br />
painted finish is highly corrosion resistant and<br />
highly resistant to fading, ensuring longevity and<br />
low maintenance – a crucial consideration in<br />
student accommodation settings. The exterior of the<br />
building adheres to the high standards of quality<br />
materials expected in the current trend for student<br />
living. That’s why the Proteus HR system with a pre<br />
coated aluminium veneer has been tested in<br />
accordance with EN13501, achieving a fire rating of<br />
A2-s1, d0.<br />
Approaching difficulties<br />
Overcoming challenges inherent in construction,<br />
particularly the constraints of tight site access and<br />
close proximity to the railway, speaks volumes<br />
about the project’s commitment to meticulous<br />
planning and execution, culminating in a product<br />
that epitomizes precision and excellence.<br />
Ben Howard, Project Manager, stated that: “an<br />
issue from a client perspective, was that the main<br />
elevation was on a main road and was therefore on<br />
the critical path for completion. We had to expedite<br />
this elevation to ensure that Graham construction<br />
were able to strike the scaffold in this area in time<br />
to avoid any delay costs. Due to the co-ordinated<br />
communication between Proteus and DNF, we were<br />
able to complete this project on time with minimal<br />
disruption to the surrounding areas.”<br />
Beacon of innovation<br />
Westfield Road was completed in the Summer of<br />
2022 and is now set to appeal widely to students<br />
who choose Edinburgh for their university studies.<br />
The impressive Westfield Road project<br />
redevelopment signifies a new and exciting future<br />
for the area. Beyond its functional brilliance, it is<br />
poised to captivate students seeking an immersive<br />
academic journey amidst the vibrant tapestry of<br />
Edinburgh’s cultural and architectural legacy. As a<br />
beacon of innovative design, this development<br />
stands tall, reflecting the city’s commitment to<br />
progressive, forward-thinking architectural<br />
endeavours.<br />
Contact Proteus Facades<br />
proteusfacades.com<br />
32 TC FEBRUARY <strong>2024</strong>
Cladding & Facades Updates<br />
DEMAND GROWS FOR FR-A PANELS<br />
Panel Systems, a leading supplier of<br />
architectural panels, is gearing up for a busy<br />
year ahead for its range of non-combustible<br />
FR-A glazing infill panels.<br />
Since launching the FR-A panels, Panel<br />
Systems has experienced strong demand from<br />
contractors switching to using non-combustible<br />
materials in external walls of buildings over<br />
11m in height, in order to meet the latest<br />
Approved Document B Building Regulations. In<br />
these cases, building materials must now be<br />
Euroclass A1 or A2-s1, d0.<br />
Manufactured at the company’s centrally<br />
located UK facility to approved IOS 9001:2015<br />
management standards, the FR-A panels<br />
achieve A2-s1,d0 classification when tested<br />
against the procedures detailed in EN 13501-<br />
1:2018. These non-combustible architectural<br />
panels are suitable for both glazing and curtain<br />
walling applications.<br />
A spokesperson for Panel Systems,<br />
said: “Our FR-A panels provide<br />
architects, developers and<br />
contractors with peace of mind<br />
when specifying panels to achieve<br />
the latest building regulations.<br />
These panels have been really popular, and we<br />
expect to see demand rise even further.”<br />
The FR-A panels are available with both Anodised<br />
and Powder Coated (PPC) aluminium facings, in a<br />
variety of thicknesses. Each panel goes through a<br />
controlled manufacturing process, which includes<br />
stringent quality checks on each component to<br />
ensure they meet the required standard of the<br />
tested specifications. As well as meeting fire<br />
safety regulations, Panel Systems’ FR-A panels<br />
offer excellent aesthetics and are available in a<br />
range of colours and finishes.<br />
Each panel is made up of a fire<br />
resisting, non-combustible core<br />
of Nexus Stonewool Lamella, the<br />
fire safe material for composite<br />
structures. This core has superb<br />
integrity, rigidity, flatness and<br />
built-in structural performance,<br />
and its uniform vertical fibre structure provides<br />
optimum mechanical performance. The unique<br />
open filament net allows a strong adhesive<br />
bond, which is complemented by Panel<br />
Systems’ adhesives, which are applied to<br />
ensure uniform, consistent coating.<br />
The FR-A panels have been carefully designed<br />
and engineered to offer architects and<br />
developers a wider choice when specifying<br />
glazing and curtain walling materials that meet<br />
the strict building regulations for fire safety.<br />
www.panelsystems.co.uk<br />
VIVALDA LAUNCHES METSKIN SYSTEM<br />
Vivalda Group has expanded its product range to<br />
include MetSkin, a new, UK designed and<br />
manufactured solid aluminium cladding system.<br />
Supplied as a whole tested and warranted system,<br />
MetSkin is manufactured within the group by MSP<br />
Façade Solutions, which has more than 30 years’<br />
experience in high performance cladding production.<br />
Available in Interlocking Plank (2mm thickness),<br />
Hook-on Cassette (3mm thickness) or Tray Panel<br />
(3mm thickness) Systems, MetSkin is fabricated<br />
using premium grade, non-flammable, solid<br />
aluminium sheet. Once formed, this is then powder<br />
coated on-site to the globally recognised Qualicoat<br />
standard. This chrome-free, environmentally<br />
friendly process is undertaken by sister company<br />
Prism Powder Coating, which has also gained Akzo<br />
Nobel approved applicator status.<br />
In addition to being available in more than 740<br />
RAL colours, MetSkin can also be supplied in an<br />
A1 anodised finish or A1 PVDF pre-coated<br />
aluminium, providing architects and specifiers<br />
with limitless creative possibilities.<br />
Andy Thomas, Trading Director at Vivalda Group,<br />
explained: “MetSkin represents an important step<br />
for us, adding the manufacture of a fully tested<br />
system to our established business as the UK’s<br />
biggest cladding distributor. While we are already<br />
well-known by contractors for the supply of worldclass,<br />
non-flammable cladding materials including<br />
fibre cement, GRC, terracotta and solid aluminium,<br />
it’s exciting to be able to provide customers with our<br />
own fully approved and tested envelope system.<br />
“We see a significant market for this product in<br />
the UK, on both new build and retrofit<br />
developments. We have worked hard during the<br />
two-year development phase to create a<br />
complete solution for architects and specifiers –<br />
MetSkin has been tested to CWCT standards at an<br />
accredited test centre and is distributed exclusively through<br />
the Vivalda Group, which includes Vivalda, BBS Facades and<br />
Pura Facades.<br />
matching existing colours or helping them bring to<br />
life their latest vision. For contractors, this means<br />
that we supply a total A-rated, tested system,<br />
including fixings, rails and ancillary products<br />
such as membranes and insulation as required.<br />
“We’ve designed MetSkin with creativity in mind,<br />
which allows the use of various substructure<br />
configurations, without compromising on the<br />
safety or aesthetics of the façade. We’ve also not<br />
forgotten about contractors and made our system<br />
easy to order and easy to install.”<br />
www.vivalda.co.uk<br />
34 TC FEBRUARY <strong>2024</strong>
WRAPTITE FITS FOR ISLE OF MAN SEA FRONT PROJECT<br />
The Wraptite external air barrier system<br />
from A. Proctor Group, selected as part of<br />
the façade upgrade to a sea-facing<br />
property in Douglas, Isle of Man, will help<br />
achieve energy efficiency targets and<br />
ensure protection from the elements.<br />
The Peveril Buildings, previously home to the<br />
Lloyds Banking Group for 20 years, is<br />
situated in the centre of the Isle of Man’s<br />
Business District, opposite Douglas Sea<br />
Terminal. The iconic property is one of the<br />
first office buildings to be seen by visitors<br />
arriving by ferry.<br />
Based in Ballasalla on the island, Excel<br />
Construction Group was appointed to<br />
upgrade the facade and improve the<br />
building’s structure, aesthetics, and energy<br />
efficiency.<br />
Andrew Burley, Quantity Surveyor at the Excel<br />
Group, explained why Wraptite, the only selfadhering<br />
vapour permeable air barrier certified<br />
by the BBA, was selected. He said: “We chose<br />
Wraptite for the breather membrane because of<br />
its effectiveness as a vapour barrier and<br />
durability. In addition, the nature of Wraptite,<br />
being a self-adhesive fix rather than the<br />
traditional use of staples and mechanical fixing,<br />
assisted with the durability in the high wind<br />
conditions prevalent on the seafront location.<br />
“Wraptite provided the building fabric with<br />
excellent protection from the coastal elements<br />
prior to installing the Gebrik panels. We will<br />
definitely be using Wraptite on future projects.”<br />
Wraptite combines the critical properties of<br />
vapour permeability and airtightness in one<br />
self-adhering membrane. Incorporating<br />
Wraptite saves on both the labour and material<br />
costs associated with achieving the energy<br />
efficiency demands in buildings.<br />
Wraptite is Class B1-s1,d0, compliant with<br />
Part B regulation changes for use in the<br />
external wall systems of buildings over 18m<br />
in height, both as a continuous layer on<br />
sheathing board behind fire classified<br />
insulation, and for use to tape joints in<br />
insulation behind rainscreen.<br />
www.proctorgroup.com<br />
TIME & COST EFFICIENCIES WITH STO<br />
A Sto rainscreen cladding system has provided<br />
an alternative construction method for a new<br />
housing development, generating time and cost<br />
efficiencies.<br />
Located in Fort William in the Scottish Highlands,<br />
Blar Mor comprises 117 one-to-four-bedroom<br />
affordable homes, which have been built by TSL<br />
Contractors. The main contractor partnered with<br />
AFS (Scotland), a leading provider of external<br />
façade solutions, to deliver a durable cladding<br />
system for timber frame homes, removing the<br />
requirement for traditional construction.<br />
“Given the location of the development, TSL<br />
Contractors was seeking a new façade solution<br />
which would enable them to build the homes<br />
more efficiently without comprising on quality,”<br />
explained Steve Avery, director of AFS.<br />
“Having used Sto’s products for numerous newbuild<br />
projects, we recommended the StoVentec<br />
rainscreen cladding system.”<br />
Sto reviewed wind load information and provided<br />
a Sto fixing assessment to assist AFS in the<br />
installation of the StoVentec system. Comprising<br />
StoVentec carrier boards, these were installed on<br />
the timber battens to create a ventilated cavity.<br />
Made from 96% recycled expanded glass<br />
granulate, the carrier boards are reinforced on<br />
both sides with glass fibre mesh. StoVentec<br />
boards don’t expand or contract with temperature<br />
change, providing a stable board to receive the<br />
render build up, and they can also be butt jointed<br />
with no risk of cracking.<br />
The next stage of the installation process was to<br />
apply a layer of StoArmat Classic Plus, a cementfree<br />
base coat, embedded with Sto-Glass Fibre<br />
reinforcing mesh to the exterior of the StoVentec<br />
boards. The final façade finish was completed<br />
The 117 homes form part of the first phase at Blar Mor.<br />
with StoSilco K1.5, a silicone resin render in<br />
white, which provides high levels of water<br />
repellence, protection against harsh weather<br />
conditions and excellent water vapour<br />
permeability.<br />
Steve continued: “StoVentec is very quick and<br />
simple to install which made it ideal for Blar Mor<br />
and the inevitable wet weather conditions. The<br />
system has also provided a thermally-efficient<br />
solution with facades that will be resistant to<br />
cracking and the elements, ensuring they retain<br />
their attractive appearance.”<br />
www.sto.co.uk<br />
FEBRUARY <strong>2024</strong> TC 35
How a history of innovation has helped develop the roof<br />
membrane of the future<br />
Specifiers and contractors want practical solutions for delivering resilient, sustainable<br />
buildings designed with the future in mind. Considering the need for future-proofed solutions,<br />
Iain Fairnington, Technical Director at A. Proctor Group, explains how the next generation of<br />
air permeable roof membranes is set to help.<br />
Pitched roof underlays are often described using the catch-all<br />
term ‘breather membranes’. The generic description doesn’t<br />
reflect the distinction between high-resistance (HR) and lowresistance<br />
(LR) membranes. And LR membranes themselves<br />
can be air tight or air permeable.<br />
indoor environment.<br />
Water resistance on the external side must not impact on the<br />
vapour permeability – or air and vapour permeability, if both<br />
are offered – from the internal side.<br />
Roofing membranes must meet a host of performance criteria,<br />
of which we’re going to focus on two: water resistance and<br />
vapour/air permeability.<br />
Ventilation in modern buildings, and especially dwellings, is<br />
often not well aligned with the energy efficiency performance<br />
Water resistance of membranes in a changing climate<br />
When a roofing system is installed, there is an inevitable<br />
period of time where the underlay will be in place without a<br />
roof covering to protect it. The underlay might therefore have<br />
to bear the brunt of any inclement weather. Good practice<br />
will dictate that this period should however be kept to a<br />
minimum and a temporary cover used if rain is expected.<br />
The NFRC’s Technical Bulletin TB06 describes how<br />
membranes should perform in terms of water resistance.<br />
It says an underlay with “a water hold out over 1m when<br />
tested to BS EN 20811 will be adequate.”<br />
As the frequency and intensity of extreme weather increases<br />
as a result of the changing climate, roof systems generally –<br />
and membranes as a specific part of those systems – need<br />
to be capable of withstanding more severe levels of rainfall.<br />
An underlay’s ability to perform with a 1m head of water is<br />
a minimum level of performance to look for during product<br />
selection.<br />
KEY FEATURES<br />
• Vapour permeable<br />
• Fully air permeable<br />
• Highly water resistant -<br />
hydrophobic additive in all 3 layers<br />
• More uniform airflow than vents<br />
• Wind Uplift Resistance Complies<br />
with BS5534<br />
• No VCL required<br />
• 15 year warranty<br />
Designing roof membranes to cope with modern living<br />
Any manufacturer developing a pitched roof underlay<br />
must balance the competing needs of resisting the external<br />
elements, and contributing to the quality of the building’s
(including airtightness). With more people adopting hybrid working<br />
and spending more time at home, excessive levels of moisture<br />
vapour in the air are increasingly common.<br />
Selecting an air permeable LR underlay can mean that no vapour<br />
control layer (VCL) is required in the ceiling. It’s also unnecessary<br />
to ensure that ceilings are constructed as ‘well-sealed’, as described<br />
in BS 9250, however the ceiling should be convection tight. Moist<br />
air passes into the roof space and, in quick succession, to the<br />
outside air.<br />
Knowing that insulation can be installed right into the eaves<br />
with no risk of blocking ventilation is reassuring from a building<br />
performance point of view, and from the point of view of avoiding<br />
condensation in the roof space.<br />
A true ‘fit and forget’ product<br />
Hidden from view, pitched roof underlays usually warrant little<br />
attention from building users. Yet they play a vital role in protecting<br />
those same users from the elements, and from unhealthy indoor<br />
climates.<br />
Proctor Air ® : an air permeable LR membrane for the future<br />
With these competing challenges in mind, A. Proctor Group has<br />
developed a pitched roof underlay for the future: Proctor Air.<br />
As an air permeable LR underlay, Proctor Air makes pitched roof<br />
constructions simpler. No VCL is required in the ceiling, which also<br />
does not need to be well-sealed. And no ventilation measures<br />
are required in the cold roof space, since the membrane permits<br />
the passage of both air and moisture vapour through the roof<br />
construction.<br />
A. Proctor Group is a 4th generation family business with a history<br />
of technical innovation, promoting good practice, and developing<br />
products that roofing contractors want to use. We have applied<br />
this wealth of experience to creating the next generation of air<br />
permeable LR membrane.<br />
By choosing and installing Proctor Air, specifiers, contractors<br />
and building owners/managers can enjoy the confidence that<br />
comes from a high-performance product doing its job without<br />
intervention.<br />
In fact, Proctor Air provides a more uniform flow of air than<br />
normal vents. This is particularly useful in complex roofs, where<br />
‘dead’ areas of poor ventilation can occur even when ventilation<br />
measures have been installed well.<br />
Proctor Air’s water resistance has been tested and meets the<br />
guidance of TB06. At the same time, it reduces the risk of issues<br />
occurring in roof spaces due to poorly installed VCLs or ventilation,<br />
since neither is needed.<br />
Keeping with the theme of future-proofing, avoiding the need<br />
for ventilation – particularly at the eaves – helps when it comes<br />
to installing the substantial thicknesses of insulation required in<br />
lofts. With the impending introduction of the Future Homes and<br />
Building Standards to consider as well, those thicknesses may well<br />
increase.<br />
All of this is backed by our unique 15-year warranty, offering peace<br />
of mind even in the face of an uncertain future climate.<br />
For more information visit: https://proctorgroup.com/products/<br />
proctor-air<br />
01250 872 261<br />
contact@proctorgroup.com<br />
www.proctorgroup.com
Knauf Insulation Tech Talk<br />
EMBODIED CARBON: WHY SHOULD<br />
YOU CARE?<br />
While insulation improves energy efficiency, it’s not the only factor that affects a<br />
building’s carbon footprint. In his latest column Bradley Hirst, Technical Services<br />
Manager from Knauf Insulation, answers common questions about another<br />
sustainability measure – embodied carbon.<br />
What is embodied carbon?<br />
The UK Green Building Council defines<br />
embodied carbon as the total greenhouse<br />
gas emissions (carbon) associated with<br />
materials and construction processes throughout<br />
the whole lifecycle of a building asset or<br />
infrastructure. It includes the emissions from the<br />
extraction of raw materials, manufacturing,<br />
processing, transportation, maintenance and<br />
disposal of every product and element used in that<br />
asset, as well as the construction process itself.<br />
This differs from operational carbon which is the<br />
greenhouse gas emissions from the energy used<br />
to run the building (heating, lighting, maintenance<br />
etc.) as well as energy used by occupants.<br />
Are there regulations about embodied<br />
carbon?<br />
Not yet, but it’s becoming increasingly important<br />
because it must be addressed to hit net zero. RIBA<br />
has already set targets for levels of embodied<br />
carbon as have many construction clients.<br />
Do all insulation products contain the<br />
same amount of embodied carbon?<br />
No. The amount of embodied carbon a product<br />
contains is affected by factors such as how it’s<br />
made, packaged and transported.<br />
Take mineral wool for example. Knauf Insulation’s<br />
glass mineral wool is made from up to 80%<br />
recycled content, mostly glass bottles and jars.<br />
While our rock mineral wool uses volcanic rock, a<br />
material from naturally abundant sources, and<br />
recycled slag, a waste product from blast<br />
furnaces. The amounts and type of energy<br />
Above: Using recycled glass cullet to manufacture glass<br />
mineral wool insulation uses less energy than is needed for<br />
virgin raw materials<br />
required to produce them are different too.<br />
Most of our products are manufactured with<br />
ECOSE Technology, our unique bio-based binder<br />
that contains no added formaldehyde or phenol. It<br />
is made from natural raw materials that are<br />
rapidly renewable and is 70 per cent less energyintensive<br />
to manufacture than traditional binders.<br />
We also compress our glass mineral wool<br />
insulation so there’s more product per pack or<br />
pallet, so less packaging is used. This means<br />
there’s more product per truck so fewer vehicles on<br />
the roads and less associated carbon emissions.<br />
In contrast, rigid boards are made using oil-based<br />
materials and cannot be compressed because it<br />
would damage the insulation.<br />
How can you check levels of embodied<br />
carbon?<br />
Ask for the manufacturer’s Environmental<br />
Product Declaration (EPD) for the product. These<br />
should comply with European standard EN<br />
15804, or International Organization for<br />
Standardization (ISO) standards 14025, 14040,<br />
Bradley Hirst, Technical Services Manager, Knauf Insulation.<br />
14044, or 21930. They should also be verified,<br />
audited, and approved by an independent,<br />
accredited third party.<br />
Where the EPD complies with EN 15804, there<br />
are two methodologies that may have been used<br />
for the calculations – the older EN 15804+A1<br />
standard, and the new EN 15804+A2. Any EPDs<br />
issued after July 2022 must comply with the new<br />
standard. This new standard helps with<br />
specification because it increases the scope and<br />
granularity of data provided, but it does make<br />
comparing EPDs produced using different<br />
methodologies difficult.<br />
Glass mineral wool is a good choice because it<br />
has the lowest level of embodied carbon of any<br />
mainstream insulation material.<br />
Knauf Insulation produces EPDs to the +A2<br />
standard for all its products, which can be<br />
downloaded from www.knaufinsulation.co.uk.<br />
Contact Knauf Insulation<br />
www.knaufinsulation.co.uk<br />
Knauf Insulation UK & Ireland<br />
38 TC FEBRUARY <strong>2024</strong>
Inverted Flat Roofs<br />
WATERPROOFING AND OTHER KEY<br />
CONSIDERATIONS<br />
As Rob Firman, Technical and Specification Manager at Polyfoam XPS, points out, inverted<br />
flat roofs can be waterproofed with bituminous membranes, single ply membranes, or<br />
liquid-applied membranes, but he says the most common solution is liquid-applied<br />
waterproofing known as hot melt. In this article, Rob explains why it is so popular, and<br />
explains how the choice of waterproofing depends on the structural roof deck.<br />
During construction of an<br />
inverted roof, the structural<br />
deck is waterproofed prior to<br />
installation of the thermal insulation<br />
and roof finish – which also acts as<br />
ballast. This protects the roof structure and<br />
building from rain sooner, but also subjects the<br />
waterproofing layer to more foot traffic.<br />
The type of waterproofing selected should<br />
therefore reflect the conditions it will be subjected<br />
to during both installation and use.<br />
What is the most common structural deck<br />
for inverted roof waterproofing?<br />
The overwhelming majority of inverted roofs are<br />
Left: Rob Firman, Technical and<br />
Specification Manager at Polyfoam XPS.<br />
concrete decks (or metal liners with<br />
a concrete topping). There are a<br />
variety of reasons for this being the case:<br />
• The roof structure must be capable of bearing<br />
the weight of the ballast.<br />
• Many inverted roofs are designed to bear the<br />
weight of foot traffic, mechanical plant, or green<br />
and blue roof systems. The roof structure must<br />
also be capable of bearing these loads.<br />
• As a non-combustible material, there is less<br />
risk associated with concrete and a hot-applied<br />
waterproofing material like hot melt.<br />
Timber decks provide a flat substrate for the<br />
waterproofing, but are much less commonly<br />
specified than concrete. Metal decks, meanwhile,<br />
cannot be used by themselves in an inverted roof<br />
because of their profiled shape hindering the<br />
waterproofing installation.<br />
Properties of different inverted roof<br />
waterproofing options<br />
A variety of factors contribute to the choice of<br />
system to waterproof the specified structural<br />
deck. Method of attachment to the deck, speed of<br />
installation, and overall system performance<br />
must all be taken into account.<br />
If the waterproofing product requires mechanical<br />
40 TC FEBRUARY <strong>2024</strong>
fixings then a concrete deck has to be pre-drilled,<br />
which adds time and cost to the operation.<br />
An adhered membrane avoids the needs for<br />
mechanical fixings but, depending on how<br />
adhesion is achieved, does not necessarily<br />
achieve a bond over the whole roof area.<br />
A complete bond between waterproofing and deck<br />
is a desirable characteristic in an inverted roof<br />
build-up. Should the waterproofing become<br />
damaged, especially by follow-on trades and<br />
subsequent work on the roof, any leak is confined<br />
to the isolated area. Water cannot track through<br />
the system and enter the building elsewhere,<br />
avoiding difficult and costly leak investigations.<br />
This is a significant reason why liquid applied<br />
solutions, and hot melt in particular, are usually<br />
preferred.<br />
Is a water flow reducing layer (WFRL)<br />
waterproof?<br />
Inverted roof build-ups are unique in flat roofing<br />
for featuring an additional layer above the<br />
thermal insulation and below the ballast finish. A<br />
water flow reducing layer (WFRL) is a loose laid<br />
membrane that acts as a barrier to rainwater,<br />
reducing the volume of water that can reach the<br />
waterproofed roof deck. It also stops fines from<br />
entering the roof system.<br />
Without a WFRL, more water reaches the<br />
waterproofing layer and increases the effect of<br />
rainwater cooling on the roof U-value calculation.<br />
A significantly thicker layer of insulation is<br />
required to compensate, increasing the depth of<br />
the roof build up and the cost of the inverted roof<br />
system.<br />
However, a WFRL is not a waterproof layer, and<br />
technical guidance for flat roofing is consistent in<br />
reinforcing this. A membrane used as a WFRL<br />
should be water resistant, rather than<br />
waterproof, and diffusion open to allow the<br />
passage of moisture vapour from inside to<br />
outside.<br />
It is therefore not appropriate to design an<br />
inverted flat roof on the assumption that no<br />
Extruded polystyrene (XPS) insulation can be used with all<br />
waterproofing solutions for inverted roofs.<br />
rainwater will be able to reach the waterproofing<br />
layer. The membrane may perform well in<br />
independent testing, but some rainfall is always<br />
expected to reach the roof deck.<br />
Selecting thermal insulation for<br />
waterproofing compatibility<br />
While hot melt is, essentially, the waterproofing<br />
solution of choice for inverted roofs, it remains<br />
the case that multiple waterproofing options are<br />
available. Extruded polystyrene (XPS) insulation<br />
can be used with all of them, and no fixing of the<br />
insulation is required thanks to the ballast<br />
installed on top of the insulation.<br />
“A membrane used as a<br />
WFRL should be water<br />
resistant, rather than<br />
waterproof, and<br />
diffusion open to allow<br />
the passage of<br />
moisture vapour from<br />
inside to outside”<br />
Crucial to the overall performance of the roof<br />
build-up, system tests are carried out to assess<br />
the performance of XPS and a WFRL together. By<br />
selecting established solutions, specifiers and<br />
contractors benefit from a known quantity that<br />
delivers reliable performance – in conjunction<br />
with whatever waterproofing layer is most<br />
appropriate to the individual project.<br />
Contact Polyfoam XPS<br />
01429 855100<br />
www.polyfoamxps.co.uk<br />
Polyfoam XPS<br />
FEBRUARY <strong>2024</strong> TC 41
Updates<br />
For further info on all these updates and more, visit www.total-contractor.co.uk<br />
NEW CPD: FIRE SAFETY OF MULTIFUNCTIONAL ROOFS<br />
ROCKWOOL, a leading UK stone wool<br />
insulation manufacturer, has launched a<br />
new CPD (Continuing Professional<br />
Development) module to help roofing<br />
contractors and specifiers assess and<br />
mitigate potential fire safety risks for flat<br />
roofs used as additional functional space on<br />
buildings.<br />
Flat roofs are a common construction, especially<br />
in busy urban environments where space is at a<br />
premium. Leveraging flat roof space enables<br />
designers, developers and ultimately tenants to<br />
make use of the ‘fifth façade’ for a variety of<br />
social and practical purposes.<br />
This CPD aims to improve understanding of the<br />
role of the modern flat roof, and how to identify<br />
and mitigate fire risks above and below the roof,<br />
and is based on the recently launched whitepaper<br />
‘Flat roofs: The functional fifth façade’.<br />
From building services and HVAC equipment, to<br />
solar installations, and even social spaces like<br />
rooftop bars and terraces, the role of the roof is<br />
changing. This expanding remit, especially for<br />
high rise buildings in crowded cities, brings<br />
multifaceted challenges to specification and<br />
building design.<br />
“By taking part in this CPD module, roofing<br />
professionals will learn about the implications<br />
of practical and social installations on flat<br />
roofs, and their impact on design and build,”<br />
explained Lisa Stephens, Product Manager –<br />
Building Envelope, ROCKWOOL UK. “The CPD<br />
also addresses the situation surrounding solar<br />
PV installations and how this is reflected in<br />
regulations and guidance.”<br />
Participants in the ‘Flat roofs: The functional<br />
fifth façade’ CPD will learn about the<br />
requirements of the Building Regulations for<br />
flat roofs and the role of guidance documents<br />
like Approved Document B, or regional<br />
equivalents. The final section of the CPD<br />
outlines ROCKWOOL’s range of fire-resistant<br />
stone wool insulation products that are<br />
compatible with a variety of modern flat roof<br />
systems.<br />
The new module is available through the<br />
manufacturer’s bespoke learning platform,<br />
ROCKWOOL Learning, or as a traditional inperson<br />
course. To learn more about the CPD,<br />
and to register for a place, visit:<br />
rockwool.link/ffcpd<br />
CALCULATING CONDENSATION RISK<br />
Knauf Insulation has launched an online<br />
condensation risk analysis tool which, the<br />
company says, will save architects and<br />
specifiers time by enabling them to evaluate<br />
the risk of interstitial condensation and<br />
generate U-value calculations in less than five<br />
minutes.<br />
Bradley Hirst, Technical Services Manager at<br />
Knauf Insulation, said: “Interstitial condensation<br />
can result in rot or corrosion within the structure.<br />
So calculations evaluating this risk give architects<br />
and specifiers peace of mind that their design will<br />
not cause unintended damage to the building’s<br />
fabric.<br />
“The problem is they take time. We know architects<br />
and specifiers often do multiple U-value<br />
calculations for housing developments, but if they<br />
wanted to assess the risk of condensation, they<br />
needed to contact our technical team or enter the<br />
same data into previously downloaded third-party<br />
software. Then if they change the U-value they<br />
have to start the whole process again.<br />
“By integrating a free condensation risk analysis<br />
calculator into our online U-value calculator, we<br />
have reduced a process that could take up to 24<br />
hours to just a few minutes.”<br />
The condensation risk analysis tool is quick and<br />
easy to use. First, users need to generate the U-<br />
value by choosing from a range of typical build-ups<br />
and tweaking the data using drop-down menus to<br />
match their exact specification. They then have the<br />
option to analyse the risk of condensation.<br />
Opening this function pre-populates the tool with<br />
the build-up and U-value data. Users then need to<br />
enter the postcode for the building location, which<br />
automatically identifies the country and the nearest<br />
available region for climatic data. Next, they select<br />
the property type from the dropdown menu. Once<br />
The Condensation Risk Analysis calculator is free to use on the<br />
Knauf Insulation website. All calculations are performed in line<br />
with BS EN ISO13788 and follow the guidance in BS 5250: 2021<br />
Code of Practice for the Management of Moisture in Buildings.<br />
the risk of condensation has been calculated, users<br />
can view the boundary conditions (data used) and<br />
download the calculation, including the<br />
temperature data and dewpoint graphs.<br />
When they close the tool, the condensation risk is<br />
automatically displayed alongside the U-value. If<br />
they then alter the build-up information within the<br />
U-value calculator, the risk of condensation will<br />
automatically be updated without needing to go<br />
back into the tool.<br />
www.knaufinsulation.co.uk/uvalue-calculator<br />
42 TC FEBRUARY <strong>2024</strong>
Workwear Choices<br />
DRESSED FOR SAFETY AND<br />
SUCCESS ON SITE...<br />
The team at Carhartt explain why choosing PPE and workwear that is designed to have<br />
your back in tough work environments is crucial, and outline some of the key items from<br />
their offering to keep you safe and comfortable on site…<br />
The construction site can be a dangerous<br />
place, filled with multiple health and safety<br />
risks where the significance of Personal<br />
Protective Equipment (PPE) and workwear with<br />
in-built toughness cannot be overstated.<br />
Serving as a frontline defence against an array of<br />
potential hazards, PPE and workwear plays a<br />
pivotal role in ensuring the safety and well-being<br />
of workers on building sites. From preventing<br />
injuries from flying objects, to shielding against<br />
harmful substances and electrical hazards, the<br />
strategic use of PPE is not just best practice, but<br />
an obligation.<br />
An eye on protection<br />
In environments prone to dust or debris, PPE<br />
such as safety glasses are crucial. Sadly, every<br />
year thousands of workplace accidents involve<br />
the eyes, and while many are minor and<br />
temporary, some result in partial or complete<br />
blindness. According to the Health and Safety<br />
Executive (HSE), there were over five thousand<br />
work-related head injuries last year, 739 of these<br />
affecting eyes, with 127 losing some or all sight.<br />
Safety glasses are therefore a crucial piece of<br />
PPE. Carhartt's range of safety glasses conforms<br />
to EN 166, the European standard that outlines<br />
the specifications for protective eyewear. Made<br />
with a polycarbonate lens and frame, these<br />
glasses are almost indestructible –<br />
polycarbonate is 250 times more impactresistant<br />
than glass and 10 times more resistant<br />
than standard plastic. Polycarbonate lenses are<br />
also thinner and lighter compared to alternative<br />
materials and provide natural protection by<br />
blocking out 100% of the sun’s UV rays,<br />
“In the intricate daily dance of challenges, the<br />
careful consideration and use of PPE is crucial<br />
in creating a secure and productive work<br />
environment”<br />
44 TC FEBRUARY <strong>2024</strong>
mitigating one of the most significant risks to the<br />
eyes.<br />
On a solid footing<br />
When it comes to safety boots and shoes, there<br />
are different industry standards that indicate the<br />
level of protection they provide. The basic<br />
standard is SB, ensuring the footwear has toe<br />
protection against impacts of up to 200 joules. S1<br />
includes the basic toe protection, anti-static<br />
features, resistance to fuel oil and energy<br />
absorption in the heel. S2 offers the same<br />
protection but also keeps water out, making them<br />
suitable for outdoor work in wet<br />
conditions. S3 boots go a step further<br />
with midsole penetration resistance,<br />
protecting against sharp objects.<br />
Check if the larger sites you work on<br />
stipulate a certain ‘S’ level.<br />
Carhartt's safety boots guarantee toe protection<br />
up to 200 joules, equivalent to the force of 13<br />
wheelbarrows filled with cement! Just like<br />
flooring, these boots have four vital layers. The<br />
Vibram runner outsole is the base layer, providing<br />
good structural support and great traction. Next<br />
comes the insulation in the form of a textile antipenetration<br />
plate which, unlike steel, protects the<br />
full foot area, is lightweight, flexible and bends<br />
with foot. It also doesn’t corrode when in contact<br />
with liquid, doesn’t conduct heat or cold, passes<br />
through metal detectors and does not conduct<br />
electricity. Anti-penetration plates are essential<br />
when working on sites where nails, glass and<br />
sharp objects may be found.<br />
On top of this is the reinforcement – a lightweight<br />
stability shank that not only keeps your boot in<br />
good shape but helps to reduce fatigue by<br />
lessening tension in the feet arches, calves and<br />
knees, supports the hips and provides balance<br />
when walking over uneven terrain. Finally comes<br />
the top layer – the cushioned part the foot makes<br />
direct contact with, in the form of a comfortable,<br />
removable footbed.<br />
When you are on your feet all day, your feet can<br />
swell by half a size. Traditional safety boots come<br />
with a protective toe cap that does not allow for<br />
“When you are on your feet all day, your<br />
feet can swell by half a size – Carhartt<br />
builds its safety boots with a half size<br />
allowance, to keep you comfortable 24/7”<br />
stretch. Carhartt builds its safety boots with a half<br />
size allowance, to keep you comfortable 24/7.<br />
Be seen on site<br />
Maintaining high visibility is also crucial to<br />
preventing accidents, particularly in<br />
environments with heavy machinery and<br />
equipment. Construction workers can<br />
significantly mitigate accident risks and bolster<br />
overall safety on the site by donning easily visible<br />
clothing. While high-visibility jackets or vests are<br />
obvious choices, other items can also effectively<br />
make individuals stand out on the site. The<br />
Carhartt Relaxed Fit Short Sleeve T-shirt<br />
(105858), for instance, isn’t just lightweight and<br />
quick-drying, it also features reflective taping for<br />
increased visibility on darker days.<br />
The right outfit<br />
To shield your body against general dust, debris<br />
and chemicals on site, overalls offer<br />
comprehensive coverage, minimising skin<br />
exposure. Meanwhile, durable work trousers are<br />
designed to endure abrasions and impacts,<br />
delivering an extra layer of protection against<br />
sharp objects, rough surfaces and potential<br />
injuries. For tasks involving kneeling or close-toground<br />
work, knee pads play a crucial role. They<br />
provide cushioning and support, mitigating the<br />
risk of knee injuries and discomfort resulting from<br />
extended periods of kneeling. Many Carhartt<br />
trousers, like the Double-Front Utility Work Pant<br />
(B01) and the Steel Rugged Flex Relaxed Fit<br />
Double-Front Cargo Multi-Pocket Work Pant<br />
(103337), come with knee spaces for adding<br />
pads. The latter features a top-loading secure<br />
knee pad pocket with cleanout openings and a<br />
fully articulated knee with a flat back seam.<br />
Prioritising PPE and tough workwear on<br />
construction sites is paramount for ensuring the<br />
safety and well-being of workers. From safety<br />
glasses and boots, to high-visibility shirts and<br />
knee pads, the array of choices reflects the<br />
diverse hazards encountered on-site. In the<br />
intricate daily dance of challenges, the careful<br />
consideration and use of PPE is crucial in<br />
creating a secure and productive work<br />
environment.<br />
Contact Carhartt<br />
www.carhartt.com<br />
FEBRUARY <strong>2024</strong> TC 45
Nails & Screws<br />
NOT ALL FIXINGS ARE THE SAME...<br />
James Robinson, Sales and Marketing Director at Samac Fixings, explains why the<br />
importance of quality fixings cannot be overstated and why understanding that not all<br />
screws are the same is so important.<br />
As the industry evolves with new building<br />
regulations and technological<br />
advancements, the demand for<br />
specialised, high quality fixings has never been<br />
higher. The design and coatings of screws, from<br />
wood screws through to heavy duty structural<br />
fixings, cater for a wide range of applications<br />
and have the potential to save significant time<br />
and money for contractors. It is true to say that<br />
today’s modern fixings are way more than “just<br />
a screw” and are surely one of the unsung heroes<br />
out of all the construction materials.<br />
The construction industry is continuously<br />
adapting to new challenges, including increased<br />
levels of insulation required by evolving building<br />
regulations. Part L of the UK building regulations<br />
now mandates a minimum roof insulation level of<br />
0.18 W/mK for all new-build homes and<br />
extensions. This significant update necessitates<br />
the use of thicker insulation materials to meet the<br />
new standard, thereby creating a need for longer<br />
screws in the construction process.<br />
Understanding this industry shift, Samac Fixings<br />
has responded proactively by adding 6 x 220mm<br />
and 6 x 240mm screw lengths to its Performance<br />
Range. These new sizes are meticulously<br />
engineered to travel through the increased<br />
thickness of the latest insulation materials,<br />
ensuring compliance with the updated<br />
regulations, while maintaining Samac's hallmark<br />
of quality and reliability.<br />
Adhering to building regulations is not just a legal<br />
necessity; it’s also a matter of safety and<br />
efficiency. The longer screws in the Performance<br />
Range specifically address the requirements of<br />
Part L, ensuring that contractors are not only<br />
compliant but also confident in the integrity of<br />
their work. Moreover, these longer screws<br />
distribute pressure more evenly<br />
across the insulation layer. This<br />
feature is critical for maintaining<br />
the stability of the insulation<br />
over time, ensuring that buildings remain energy<br />
efficient and compliant with the latest standards.<br />
Coatings<br />
One of the key aspects of Samac’s Performance<br />
Range is the Ruspert coating. This coating is not<br />
just about aesthetics; it provides enhanced<br />
corrosion resistance, making the screws suitable<br />
for a variety of environments, including external<br />
applications. The durability offered by this coating<br />
extends the life of the fixings, thereby reducing<br />
the need for frequent replacements and saving<br />
costs in the long term.<br />
The design of a screw also plays a pivotal role in<br />
its efficiency. Certain screws are engineered for<br />
specific applications. Take, for instance, TEK<br />
Screws which are designed with a self-drilling<br />
capability that eliminates the need for predrilling,<br />
saving you time and money. This feature<br />
also ensures a secure and tight fit, reducing the<br />
risk of leaks and other issues that can arise from<br />
poorly secured sheet metal.<br />
Collated nails, such as the Viper range for roofing<br />
applications offer another example. Designed with<br />
precision, these nails ensure a strong hold and<br />
easy application, crucial for the fast-paced<br />
nature of first fix roofing. Likewise, the Atlas<br />
Bolts, known for their strength and reliability,<br />
are perfect for heavy-duty applications where<br />
security and durability are paramount.<br />
Furthermore, the longevity and reliability of<br />
these fixings mean fewer callbacks for repairs,<br />
a significant saving for contractors.<br />
However, understanding when to use<br />
the correct screw for a specific<br />
application in the construction<br />
industry is not just a matter of<br />
efficiency; it’s a crucial aspect of<br />
safety, cost management and overall project<br />
success. The importance of this knowledge<br />
cannot be understated, as the use of<br />
inappropriate fasteners can lead to dangerous<br />
outcomes and be a source of significant waste.<br />
For example, a screw not designed for loadbearing<br />
purposes used in structural applications<br />
may fail under stress, leading to structural<br />
integrity issues or even catastrophic collapses.<br />
Similarly, screws that are not corrosion-resistant,<br />
if used in outdoor or moisture-prone<br />
environments, can corrode and weaken over<br />
time, posing a risk to the stability of the<br />
structure.<br />
So, not all screws are the same – and the saying<br />
“you get what you pay for” holds particularly true<br />
in the world of construction fixings. The benefits<br />
of investing in quality extend beyond the<br />
immediate project. They ensure compliance,<br />
enhance safety, save time and money in the long<br />
run, and contribute to the overall success and<br />
reputation of a construction business.<br />
Contact Samac Fixings<br />
www.samacfixings.co.uk<br />
46 TC FEBRUARY <strong>2024</strong>
Updates<br />
For further info on all these updates and more, visit www.total-contractor.co.uk<br />
SECURE TOOL TRANSPORTATION<br />
KNIPEX has developed a range of tool<br />
cases and backpacks enabling<br />
tradespeople to comfortably and<br />
securely transport their tools<br />
to site, ‘whether travelling<br />
on public transport or piling<br />
into a car or van’.<br />
The KNIPEX Modular X18 (00 21 50 LE)<br />
service backpack allows you to carry all your<br />
tools, laptop or accessories comfortably on your<br />
back. The Modular X18 is made for those who<br />
don’t want to compromise on which tools they<br />
take where, and the backpack can<br />
hold up to 15kg. It adapts<br />
perfectly to its wearer thanks to the<br />
fully foldable front and back, a<br />
laptop compartment, a removable<br />
tool board and ergonomic back<br />
padding.<br />
Of course, you may want a backpack<br />
filled with tools, and that is where the KNIPEX<br />
Modular X18 Electric (00 21 50 E) comes in. This<br />
is equipped with 16 KNIPEX tools, a total of 22<br />
branded tools, partially VDE-tested according to<br />
DIN EN 60900.<br />
When you need to<br />
move lots of tools<br />
safely, the new<br />
Robust26 Move<br />
tool case (00 21<br />
33 LE - pictured)<br />
is ideal. With an extendable, ergonomic handle,<br />
smooth-running wheels and an automatic<br />
pressure compensation valve, it is great for<br />
plane, train or van.<br />
www.knipex.com<br />
HOT TOP-IC: NEW HEATED BASE-LAYERS!<br />
In addition to powering the expanding line-up of cordless tools and accessories, Makita has introduced two new heated base-layers to its<br />
range of job site apparel.<br />
Powered either with Makita’s 18V LXT battery or the 12Vmax CXT battery, professionals can stay warm when working in cold job site conditions with the<br />
new DCX200 and DCX201 heated base layer shirts. With four dedicated heat zones for optimum heat distribution and three<br />
heat settings to adjust to changing weather conditions, these new<br />
garments can provide continuous heat for up to 33 hours.<br />
Both base-layers are made from elasticated fabric to allow<br />
unrestricted movement, are machine washable and have a<br />
simple switch on/off button that is easily accessible at the<br />
front.<br />
www.makitauk.com<br />
NEW KNEEPAD SYSTEM TAKES THE STRAIN<br />
In what is probably the most ground-breaking Work Trouser and Knee Guard innovation, Snickers Workwear has launched<br />
the ‘world’s first’ built-in, certified kneepads which are completely integrated into a pair of Snickers Workwear’s<br />
premium stretch Trousers.<br />
Delivering low-profile impact protection, the AllroundWork, Stretch Trousers with Capsulized Kneepads are an innovative<br />
combination of cutting-edge sportswear technology coupled with well-established workwear know-how. They’re ideal for craftsmen and women on site;<br />
for people in logistics and warehousing; industry, engineering and maintenance, who are constantly on the move and want the continuous protection of<br />
welded-into-place kneepads. Designed and engineered in partnership with YBC, the Capsulized kneepad components comprise six protection layers that<br />
work with each other to dissipate the energy created by the impact of working on your knees or through bumps in the workplace. They deliver effective<br />
durability combined with penetration protection, as well as additional impact absorption, pressure release and enhanced comfort. And, as is typical of all<br />
Snickers Workwear clothing, these stretch Work Trousers with the lightweight Capsulized kneepads will provide in-place ergonomic protection all day,<br />
every day. https://www.snickersworkwear.com/campaign/capsulized<br />
48 TC FEBRUARY <strong>2024</strong>
40V MAX XGT<br />
EXCELLENT FOR CONTINUOUS<br />
HEAVY-DUTY WORK<br />
120+<br />
230MM ANGLE GRINDER: GA038G<br />
Auto-start Wireless System (AWS)<br />
Active Feedback sensing Technology (AFT)<br />
See website for 115mm, 125mm and 230mm 40V XGT Angle Grinders.<br />
With over 120 products and still expanding, the XGT range is your ultimate alternative<br />
to traditional petrol and mains power sources. Experience on-demand power across our<br />
complete product spectrum. Makita provides more than just power tools, explore our full<br />
range at makitauk.com and follow us on socials for updates.<br />
makitauk.com
Updates<br />
For further info on all these updates and more, visit www.total-contractor.co.uk<br />
POWER ON THE MOVE WITH MAKITA<br />
Makita has announced the launch of its new<br />
BAC01 36V Power Converter, which turns DC<br />
power into AC power, and is suitable for battery<br />
charging or the use of corded tools in outdoor<br />
job sites where an AC outlet is not available.<br />
Specifically, the new solution converts power from<br />
Makita’s 36V battery packs to AC power for a wide<br />
range of applications – simply by connecting the<br />
PDC01 or PDC1200 battery pack to the power station.<br />
The power converter has been designed to support<br />
a variety of requirements, offering multiple outlets<br />
that include two AC outlets, two Type-A USB output<br />
ports, two Type C USB outlet ports, and one DC12V<br />
cigar socket. Collectively, users have access to a<br />
wide range of options to power multiple items when<br />
out on site and it can also be used to recharge<br />
Makita’s batteries for use with its cordless power<br />
tools or outdoor equipment.<br />
Runtime is application dependent. For example, the<br />
PDC1200 will power a 1000W load for about 56<br />
minutes, and the PDC01with 4x BL1860B batteries<br />
will power a 750W load for approximately 20<br />
minutes.<br />
Owing to the focus on portability and functionality,<br />
the power converter is also compatible with<br />
Makita’s Makpac system to allow for easy<br />
transportation. Measuring just 39.5cm by 34.5cm<br />
by 16.3cm and weighing 7.3 kilos, it can otherwise<br />
be handled using the built in carrying<br />
handles located on both sides of the unit<br />
which are retractable when not in use.<br />
Kevin Brannigan, Marketing Manager<br />
at Makita UK, said: “We’re always<br />
looking for opportunities to meet our<br />
customers’ needs, with our new BAC01 Power<br />
Converter doing just that. We foresee this being a<br />
highly useful and complementary piece of<br />
equipment for tradespeople working on large<br />
sites, or in remote areas where there isn’t a<br />
power supply available. It’s an easily<br />
transportable, highly effective source<br />
of power that is compatible with a<br />
variety of tools and lighting equipment.”<br />
With a nominal battery voltage of 36V, the BAC01<br />
has a maximum power output of 2,800 W and<br />
continuous rating output of 1,400 W.<br />
www.makitauk.com<br />
FREE MULTI VOLT BATTERY PACK OFFER FROM HIKOKI<br />
HiKOKI Power Tools has announced a free Multi Volt<br />
battery pack offer to its customers. From 1 January to 31<br />
March, <strong>2024</strong>, customers who spend £300 including VAT<br />
or more on any HiKOKI cordless tools from an approved<br />
UK/ROI HiKOKI seller or dealer can grab a cutting-edge<br />
BSL18A36 MV Battery Pack for free, subject to terms and<br />
conditions.<br />
HiKOKI’s Multi Volt batteries offer flexibility and convenience.<br />
With the ability to intelligently switch between 36V and 18V,<br />
these batteries provide the high power needed for heavy-duty<br />
tasks and can be charged in just 32 minutes.<br />
Compatible with all cordless HiKOKI Power Tools, the BSL18A36 MV Battery Pack ensures that professionals always have the right amount of power for<br />
the job at hand, thereby reducing downtime and increasing productivity. Its rapid charging time and long-lasting power make it an essential addition to<br />
any toolkit.<br />
All qualifying customers have to do is complete the redemption form on the HiKOKI Power Tools website, and the BSL18A36 MV Battery Pack will soon be<br />
theirs.<br />
For full terms and conditions and for more details on how to claim visit www.hikoki-powertools.co.uk/redemption<br />
50 TC FEBRUARY <strong>2024</strong>
TECHNICAL SUPPORT<br />
Work with a manufacturer who goes beyond simply<br />
supplying product. Choose global experts in passive fire<br />
protection – providing free, in-depth technical support at<br />
every stage of your project, backed by our engineers and<br />
product specialists from design to build and beyond.<br />
Wherever the project and whatever the challenge, our<br />
technical and site services teams are here to work with<br />
you - for you.<br />
Are you ready to Go Beyond?