September 2020
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SEPT 2020
Highest uninterrupted
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Use in wind uplift
Zones 1-4
>>> CLAY PANTILES • TOOLS • WORKWEAR • ROOFLIGHTS • VENTILATION ADVICE >>>
Think of this as Light Steel Framing
EJOT’s advanced fastening capability spans global market sectors, providing solutions to a
world of assembly applications. Lightweight vehicle assembly is just one example.
It’s the sharing of this ‘make-lighter-build-stronger’ know-how, that is helping to create new
products and installation techniques for the modern construction envelope, on and off site.
Here in the UK our Applitec centre is at the hub of everything we design, test and
manufacture; working with the EJOT Group worldwide and forming academic partnerships to
embrace the challenges of a changing industry in a rapidly changing world.
EJOT® The Quality Connection
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Editor’s Comment
MATT DOWNS
EDITORIAL DIRECTOR
MATTDOWNS@MEDIA-NOW.CO.UK
07963 330774
Highest uninterrupted
airflow rate
Use in wind uplift
Zones 1-4
Over the last few issues we focussed on the fact that the ability for
operatives to be able to demonstrate competency through continual
development is only going to increase.
With the recent formation of the Building Safety Regulator and imminent
changes to Building Regulations, the spotlight is on all in the supply chain and
particularly those responsible for the installation of products and materials.
Cover courtesy of Glidevale Protect. See their advert on p25
and find out more about the Viking Air Underlay on p31.
This issue was touched on in our wide-ranging talk with James Talman,
Chief Executive of NFRC, who, with recent developments around RoofCERT
and CompetentRoofer, feels roofing is well placed to meet future demand.
Discussing the route to accreditation alongside the experienced worker size
of the roofing market, James explained NFRC is in the final stages of
securing an approved experienced worker route for acceptance to the
RoofCERT accreditation, which he feels will be crucial for the sector moving
forward. James explained: “The experienced worker size of our market is
over 75% of our workforce. Before, this part of the market would have had
no route to accreditation but through proper assessment, through upskilling
where necessary and CPD, we now have a route accredit the vast majority
of the roofing labour force; that’s been a sticking point for years.” You can
read our full interview with James from p14.
Elsewhere in this issue, Stuart Base talks access to materials following the
opening of SIG Roofing’s Bristol Hub (p18); John Mercer turns his attention
to the installation of clay pantiles (p24); Jeremy Dunn advises against
under-spec rooflights (p36); and Julian Thurbin discusses BS 8579 (p30).
So read on for all this and much more...
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SEPTEMBER 2020 TC 3
Contents
3 KEY FEATURES
14 INTERVIEW: JAMES TALMAN
We caught up with the Chief Executive of NFRC
to talk competency, skills, lockdown, the role
of the Federation moving forward and so
much more...
36 UNDER-SPEC ROOFLIGHTS
Following a number of complaints relating to
glass rooflights, NARM’s Jeremy Dunn
highlights the issues of using under-spec
products
24
52 FIXING ISSUES
The experts at EJOT outline best practice
guidance for attaching to externally insulated
walls to ensure you don’t compromise on the
performance of the facade
22
FURTHER READING
20 A TIME TO VENT
Stuart Nicholson explains why correct roof ventilation is
key to preventing condensation damage in new homes
22 BATTEN GUIDANCE
Following the publication of the Health & Safety in Roof
Work guidance, Shaun Revill looks at the role of battens
28 LOW PITCHES & MEMBRANES
Nick King explains why contractors must use specific
product solutions for low pitch roofing applications
30 INSTALLING TO BS 8579
Julian Thurbin discusses the Standard which addresses
the fire performance of at-height balconies and terraces
40
40 TRUSTED SUPPORT
The team at VELUX Commercial say contractors need
support they can trust so projects run smoothly
60 MAKING THE CUT
Dominic Waring talks diamond blades & cutting discs so
roofers can ensure they have the best tool for the job
4 TC SEPTEMBER 2020
REGULARS
18 SIG ROOFING
Stuart Base talks access to products and
outlines the real benefits SIG Roofing’s new
Bristol Hub will offer roofers in the South West
24 PERFECTLY PITCHED
In his latest consultant case study, John
Mercer turns his attention to the correct
installation of traditional clay pantiles
55 QI BY QI
In their latest column, the experts at QI discuss
whether non-combustible insulation is
required over compartment walls
SECTIONS:
TOTAL
ROOFING
20
TOTAL
CLADDING
48
INDUSTRY NEWS
06 NEW IDENTITY FOR IOR
The Institute of Roofing has launched a new identity as it
continues its plan to “modernise and revitalise”
08 COVID-19 BREACHES DOWN
The Building Safety Group says Covid-19 breaches on sites
are down, but “now is not the time to be complacent”
TOTAL
INSULATION
52
06
VEHICLES, TOOLS
& WORKWEAR
60
SEPTEMBER 2020 TC 5
Industry News
SIG ROOFING’S NEW
BRISTOL HUB OPENS
SIG Roofing’s major new distribution hub in
Bristol has formally opened its doors,
representing significant investment from
the leading roofing supplier into its offering
in the West Country and South Wales.
The facility, which was unveiled on 1st
September 20, is located on Bristol’s More+
industrial complex and signifies a major step
forward in SIG Roofing’s stock holding and
delivery capabilities in the region.
At the heart of the new complex is 31,617 sq
ft of warehousing space, enabling SIG
Roofing to ensure that the widest array of its
products can be held in stock at any one
time. It is also home to a large delivery fleet,
which will eventually rise to 28 vehicles.
The hub enables increased support to SIG
Roofing’s active branch network across the
South West, further enhancing its offering to
roofers operating within the M4 corridor.
Customers visiting the hub are also able pick
up their materials from dedicated collection
points (for pre-ordered stock), ensuring visits
to the site are efficient and hassle free.
George King, Divisional Managing Director for
the South at SIG Roofing, said: “We’re
absolutely delighted to be able to officially
open our brand new distribution hub. The
strategic location means we can really
scale-up our offering to roofers and our
branch network alike. We are totally
committed to delivering an unbeatable
service for our customers, and this new hub
is a major step forward for us in that regard.
The facility will help us maintain an
unbroken supply chain to our branches in
the region, ultimately ensuring roofing
professionals can get the right part for the
job, exactly when they need it.”
More on the new Bristol Hub: page 18
More news, updates and interviews at www.total-contractor.co.uk
NEW IDENTITY FOR INSTITUTE OF ROOFING
The Institute of Roofing (IoR) has
recognised as part of the NFRC’s
launched a new brand identity as
RoofCERT accreditation programme.
part of its commitment to
Stuart continued: “Despite our current
“modernise and revitalise”,
situation with Covid-19, we have
following the appointment of its new
managed to achieve some key goals
CEO, Stuart Hicks.
to modernise the Institute. Alongside
The rebrand reveals a transformation
the new training courses, revamped
in the colour identity of the IoR with a new logo, and website and fresh brand identity, we are also
follows the recent relaunch of the IoR website. making headway in our goal to achieving Chartered
status in what is a measured, step-by-step
Celebrating its 40th anniversary this year, the IoR
process. We have changed the management
says its new look follows a wave of developments
structure of the IoR, modernised our constitution
in 2020 that underpin the Institute’s goal of
and rules, updated our membership criteria and
achieving Chartered status.
improved our member benefits. We’re also working
Stuart Hicks, explained: “I made it clear at our AGM more closely with other training providers,
in 2019 that we needed to make some big changes federations and sector associations, and created
to help cement our place within the UK roofing the first-stage pathway to professional
sector. This new, graphic identity will not only give qualifications to help and encourage participants to
us a new logo, but ensure a more professionally achieve their highest level.”
presented organisation to the outside world.”
Stuart concluded: “This is our 40th year and we
The rebrand is just one of many new developments wanted to carve a new direction for the Institute, as
for the Institute, as it also relaunched its Associate well as create a new look. By modernising and
Course in January as well as providing a
driving our strategy forward, it will benefit not only
comprehensive set of updated online training our members, but the wider roofing industry for
courses, six of which have also now been
years to come.”
SURVEY SHOWS THE SCALE OF TOOL THEFT
Tools are stolen from a tradesperson’s vehicle Of the 28,681 incidences of tool theft, nearly a
every 20 minutes in England, Wales and Northern third (30%) were reported in London with the
Ireland, according to new research from Direct North West (27%) and Yorkshire and Humberside
Line - Business.
(12%) closely following.
In 2019, there were an alarming 28,681 cases of When considering population density, the North
tool theft from vehicles, equating to 78 incidences West had the most accounts of tool theft per
every day. Based on an analysis of data from resident, with Lancashire Constabulary reporting
police forces across England, Wales and Northern the highest levels of thefts in the region – an
Ireland, the findings highlight that theft of tools alarming 4,440 in one year.
from vehicles is a frequent problem for
Nandita Borkakoti of Direct Line - Business, said:
tradespeople. The loss of vital equipment can
“This new research reveals the shocking
present a serious threat to a tradesperson’s
frequency of tool theft from vehicles. Tool theft is
livelihood, especially in the current economic
hugely disruptive and often results in
climate, preventing them from carrying out work
tradespeople missing out on jobs. It’s vital they do
and hitting their pockets hard.
all they can to protect themselves.”
6 TC SEPTEMBER 2020
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Industry News
VELUX REWARDS:
DOUBLE BENEFITS
Installers and builders across the UK and
Ireland can now benefit from a rewards
boost running from August until 31st
October 2020, thanks to VELUX.
The roof window manufacturer introduced
VELUX Rewards in 2015, with the scheme
providing customers with an opportunity to
earn rewards each time they buy VELUX
products, with different promotions running
throughout the year.
However, throughout August, September and
October this year, purchasers qualify for £50
rewards on all VELUX white painted top-hung
roof windows and £30 rewards on all other
VELUX white painted roof windows*.
Customers can claim their VELUX rewards at
a number of top-brand partners, including
Argos, Marks & Spencer, John Lewis, Adidas
and Tesco. All rewards must be claimed by
13 November 2020.
More news, updates and interviews at www.total-contractor.co.uk
COVID-19 BREACHES DOWN ON SITES
The Building Safety Group (BSG) has reported
a 41% decrease in the number of COVID-19
breaches occurring on construction sites over
a three month period. BSG’s report is based
on 4,400 independent site inspections carried
out between 1st June and 31st August 2020.
The drop in breaches has been attributed to more
companies successfully adapting to new working
practices on construction sites, in light of the
pandemic. Over time it is expected that this trend
will continue as the industry becomes more
accustomed to operating under the restrictions
imposed by the coronavirus.
The most common types of COVID 19 ‘noncompliances’
reported by BSG Safety Advisers
over the last three months have included;
• Management and operatives not following
social distancing guidelines.
• Inadequate welfare facilities on site with
insufficient cleaning regimes.
• Too many people in the canteen area with
insufficient segregation.
• Not enough hand sanitizing stations on site
Above: Table shows COVID-19 breaches on construction
sites – 1st June-31st August.
• PPE not available when required.
• Outdated Site Operating Procedures found on
site.
BSG’s Managing Director, Stephen Bell
commented: “We are pleased to see that COVID-
19 breaches have fallen since we began risk
assessing companies’ prevention measures to
counter the coronavirus. Although we expect this
downward shift to continue, now is not the time
to become complacent, so it is vital that our
industry remains vigilant and continues to follow
government Site Operating Procedure (SOP)
guidelines.” Stephen added: “BSG’s position will
be to continue to advise construction companies
on how best to avoid COVID 19 transmission as
well as mitigate against all other hazards which
can occur on site.”
LEEDS RECOGNISED IN TRAINING AWARDS
Richard McArthur, Marketing Manager from
VELUX said: “After what has been a difficult
few months, we are delighted to be able to
give something back with this new offer. The
builders and installers who recommend and
purchase our products for their customers
really are our brand champions, working
tirelessly to help consumers transform their
homes. We hope this current rewards boost
will demonstrate our appreciation for the
hard work they do.”
To receive rewards from VELUX, upload your
invoice at www.velux.co.uk/rewards
*VELUX white painted burglary resistant roof windows
(GGL 70Q) are excluded from this promotion.
Leeds College of Building has been named
second-best UK Training Provider for 2020-21
in the ‘RateMyApprenticeship Top 50’ league
table.
The chart is based on 5,500 honest, authentic
student-written reviews across all apprenticeship
and school leaver schemes on the national
website, RateMyApprenticeship.co.uk.
The top training providers in the UK for 2020-2021
were announced at a special awards event.
Celebrating the outstanding achievements of
apprentices, schools and colleges, universities,
employers and training providers in apprenticeships,
the awards saw over 400 people come together
virtually to recognise the industry’s finest. Overall,
Leeds College of Building took second position in
the table nationally, behind overall winner
Paragon Skills. The College was the only Further
Education institution in Yorkshire to make the top
50 training providers and the top-ranking college
nationally.
Rob Smith, Apprenticeship Contracts Manager at
Leeds College of Building, said: “We’re thrilled to be
recognised as the top Further Education College
nationally for delivering exceptional Apprenticeship
training. It is even more significant as it is voted for
by students themselves. Well done to all of our staff
for their dedication to the experience of our students
and for working so diligently with employers.”
8 TC SEPTEMBER 2020
Handrails:- EasyGuard
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*CurveyGuard – an aesthetically pleasing curved rail.
*EasyGuard – raked or straight legs dependant on
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Trip hazard reduction – long thin base-plates with
Counterweights used on un-secured ends only. Placed at 2m
centres maximum to enable use for leading edge protection.
Galvanised or powder coated finish. Protective mats 5mm
bonded to the base plates.
Standards – Exceeds Class A EN13374- Class A; For
leading edge protection HSE/SR 15, September 1988.
Nationwide delivery or contract installation. – Free material
quantifying service – info@safetyworksandsolutions.co.uk
Ladders:- Easy Fit
Compliant to both BS/EN 5395 and 14122 –
To comply with the standards for
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All typical ladders bespoke – email
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Easy Fit, all ladder components are Easy
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Rest Platforms and ladders with special
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HANDRAILS
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Industry News
More news, updates and interviews at www.total-contractor.co.uk
LAMINATED GLASS KEY FOR ROOFLIGHTS
As the UK’s leading independent
authority on rooflight
specification, NARM, the
National Association of
Rooflight Manufacturers,
publishes technical guidance
on all aspects of specification,
with a strong focus on safety.
For many years, the association
has recommended the use of laminated glass
inner panes for glass rooflights. This removes the
risk of glass debris falling onto building occupants
in the event of a shattered pane: a risk that is
present when toughened glass – sometimes
referred to as safety glass – is used.
This position has now been further endorsed by
ACR, the Advisory Committee for Roofsafety, a
body dedicated to making working on roofs safer.
Founded in 1998 by HSE, ACR comprises
representatives of major roofworking federations
and associations, and HSE.
In its new Information sheet 5 ‘Glass Specification
in Flat Rooflights’, ACR reiterates
NARM guidance, stating that: ‘It
is difficult to see how the use of a
toughened rather than laminated
glass inner pane doesn’t present
a risk to anyone beneath the
rooflight. The ACR, in common
with the Centre for Window and
Above: example of a broken rooflight.
Cladding Technology (CWCT) and
the National Association of Rooflight
Manufacturers (NARM), strongly believes that any
realistic risk assessment will lead to the selection
of laminated glass.’
NARM says this action brings further pressure on
BSI to amend its BS 5516-2: 2004 standard, in
which toughened panes currently are allowable,
subject to a risk assessment.
The document can be downloaded at:
www.the-acr.org
For further information about rooflight
specification, visit www.narm.org.uk
More from NARM on page 36.
4O NEW STORES FOR
SCREWFIX THIS YEAR
Screwfix says it will open 40 stores this
year, creating around 400 new jobs in
local communities. The new openings
demonstrate continued growth of the
business and a growing demand for
convenience, despite the challenges of
Covid-19.
30 new stores in the UK will create up to
300 jobs in areas such as retail
management, service assistants and
supervisor roles, by the end of January
2021. More than 10 stores are planned in
the Republic of Ireland (ROI), which will
create up to 160 jobs over the same
period. It now has more than 680 stores,
with a long-term target of 800 in the UK.
Screwfix currently has five stores in the
ROI, which opened in early 2020. The
business hopes to open up to 40 stores in
the ROI over the coming years, creating
around 400 jobs in total.
MERGER CREATES ‘PREMIER FALL PROTECTION COMPANY’
Kee Safety, a leading global supplier of fall
protection solutions and safety railing
systems, has announced “an exciting new
venture that sees four of its Scottish-based
The company says customers will have access to
a larger product range, including fall protection
systems, guardrails, walkway solutions and fixed
access products.
businesses merge into one premier fall
“We are very excited about this merger,”
protection company.”
explained Brian McLean, General Manager of APS
It says this development will allow the company to Safety Systems. “Built on 10 years of success,
create new employment opportunities, invest in APS Safety Systems’ reputation is based on
maintenance of fall protection and access
new technologies and deliver a more efficient and quality and safety. This, combined with the
systems. The company offers a range of planned
effective operation.
‘Separate People from Hazards’ philosophy that
and preventative maintenance services to ensure
all Kee Safety companies abide by, makes us
The four businesses – Roof Edge Fabrications, The
that buildings and asset portfolios remain in the
confident that this new structure will benefit
Roof Anchor Company, W.H. Maintenance and APS
best possible condition. Operating across sectors
existing and new employees, clients, and our
Safety Systems – will trade under APS Safety
such as industrial, education, commercial and
supply chain and will allow us to continue our
Systems Ltd and will operate out of a facility in
retail, residential and health, APS Safety Systems
sales growth across Scotland.”
Glasgow. The APS Safety System team will combine
assist clients at every stage of their project, from
employees from all four companies, resulting in one
“highly skilled and knowledgeable team.”
Part of the Kee Safety Group, APS Safety Systems
specialises in the design, installation and
expert advice at the outset, through installation to
on-going maintenance.
10 TC SEPTEMBER 2020
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Industry News
INCREASED SUPPORT
SR Timber says it has made a key
appointment to bolster its team and
provide another layer of knowledgeable
support and experience for its merchant
and contracting customers.
The Huthwaitebased
company
has appointed
Rachael Williams
to the role of
Business
Support.
Above: Rachael Williams.
Rachael brings 25
years’ experience of working for merchants, as
well as in the wider construction industry. SR
Timber sees her appointment as pivotal both to
its own business operations and to the
processes that underpin how the company
services its customers. Rachael explained:
“Having met with Trading Director Shaun Revill,
it’s clear that there are some very ambitious
plans in place for the continued growth of the
business and the desire to continue developing
the company’s market dominance, particularly
in batten.”
More news, updates and interviews at www.total-contractor.co.uk
FMB: ‘TIME TO RELEASE THE BRAKES’
The Federation of Master Builders (FMB) says
government must release the brakes on
sluggish construction sector activity by
stepping up its support for builders who want
to get accredited for the Green Homes Grant
scheme.
This is in response to Construction PMI data,
published on September 4th, which showed that
growth slowed in August, with respondents citing
a lack of new work to replace completed
contracts and a ‘wait and see’ attitude among
clients.
Jessica Levy, Director of Communications at the
Federation of Master Builders (FMB), said: “The
slowdown in growth reported in today’s
Construction PMI report points to the need for
policies which sustain much-needed jobs and
activity, and give consumers confidence to invest.
The Green Homes Grant scheme has the potential
to do this, but just weeks away from its roll out,
the Government needs to step up support for
builders to gain recognition for their competence
and high quality workmanship and register for the
scheme. Rightly, the focus is on competency, but
the mechanisms proposed are complex,
“The FMB is campaigning for the Government to commit to a
long-term, ambitious plan for green homes at the Budget”
especially within the Government’s ambitious
timescales. The time and costs involved in
accreditation risk putting off quality builders who
otherwise are committed to doing their bit to
achieve Net Zero.”
Levy concluded: “We know that the Green Homes
Grant will be put under the microscope before
more public investment in energy efficiency is
brought forward. The FMB is campaigning for the
Government to commit to a long-term, ambitious
plan for green homes at the Budget that will lead
to sustainable jobs and organic growth in the
energy efficiency market. This will increase
business confidence to step up and make the
Green Homes Grant a success.”
‘GREEN ROOFS SHOULD HAVE BEEN PART OF GREEN HOMES GRANT’
A living roof specialist believes government
could have “delivered a much-needed shot in
the arm to the economy and boosted Britain’s
effort to be net zero carbon by 2050” by
including green roof projects as part of the
Green Homes Grant scheme.
Julian Thurbin, a Director at Croydon-based
green roof specialist Wallbarn, explained: “We
believe the Chancellor could have scored a hattrick
if he’d included green roofs in the grant
scheme. He would have helped improve many
thousands of homes, delivered a much-needed
shot in the arm to the economy and boosted
Britain’s effort to be net zero carbon by 2050.
“Green roofs offer brilliant insulation benefits and
keep homes cooler in summer. They also regulate
the microclimate around them, contribute towards
cleaner air quality, control run-off from heavy
rainfall and cool cities. They’d have been a perfect
partner for the other measures covered by the
grant scheme – with the added bonus of
increasing biodiversity, providing a haven for
pollinators and being great to look at,” added
Julian.
Julian says homes with flat roofs over living
areas are ideal candidates for a green roof, which
he points out are cheaper and easier to retrofit
than, for example, ground source heat pumps
and solar panel systems. “We’d love to see the
Chancellor take a second look and consider
incentivising green roof installations,” said
Julian. “They are a beautiful and natural
approach to roofing and insulating properties and
fit perfectly with the government’s environmental
agenda.
“The Mayor of London has recognised the
importance of greening urban environments
with the launch of his Grow Back Greener Fund,
which aims to support the recovery from Covid-
19 through sustainable growth and ‘greencollar’
jobs. We think it’s a scheme that could
be rolled out across the country, with support in
part from Green Homes Grant funding,” he
concluded.
12 TC SEPTEMBER 2020
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NFRC: Interview
‘INFLUENCE AND ENGAGEMENT’
Total Contractor sat down with James Talman, Chief Executive of the NFRC, to talk
competency, skills, Government initiatives and the role of NFRC going forward...
got nothing against NVQs from the
point of view of new entrants and those
“I’ve
that can follow that route,” explains James
Talman, Chief Executive of the NFRC, “but for the
vast majority of the workforce (in roofing), to expect
them to be doing an NVQ is an impossibility – and
in some cases a disservice to skilled people who
have not had the chance to go through what I call
the ‘traditional route of education.’”
James is discussing the
developments around
CompetentRoofer, the governmentbacked
Competent Person Scheme
for roofing companies and
RoofCERT, the accreditation for
individuals, which when you
consider the path the government is
on with regards to demonstrating competency
within construction, should see roofing well-placed
to meet future demand.
In the August issue of Total Contractor, when
discussing RoofCERT, James explained: “Operatives
across all parts of the construction industry will,
therefore, find themselves being asked to
demonstrate their competency to satisfy employers
and clients. It is no longer enough for an operative
to just rely on the number of years’ experience they
have or to have an NVQ; further accreditation is
needed to demonstrate ongoing competency.”
Experienced worker route
In our meeting, James explains NFRC is in the final
stages of securing an approved experienced worker
route for acceptance to the RoofCERT accreditation
– a move which he describes as “a big
breakthrough for us”, and it’s clear to see why. He
explained: “The experienced worker size of our
market is over 75% of our workforce. Before, this
part of the market would have had no route to
accreditation but through proper assessment,
through upskilling where necessary and
CPD, we now have a route to
accredit the vast majority of the
roofing labour force; that’s been
a sticking point for years.”
Whilst RoofCERT and
CompetentRoofer are undergoing a
rebrand to be brought more firmly
under the NFRC banner, both
remain open to the wider market.
This, James feels, will crucially help
raise awareness with other industry
bodies and enable more interaction
with housebuilders and main
contractors.
Green Homes Grant: ‘where’s
the capacity?’
Referring back to the path government is on with
regards to demonstrating competency alongside
meeting its environmental targets through green
initiatives, the conversation inevitably moves to the
government’s £2bn Green Homes Grant (GHG)
Scheme. Under the GHG, homeowners in England
can apply for vouchers worth up to two thirds of the
cost of hiring tradespeople to upgrade the energy
efficiency of their home – the maximum
contribution is £5,000, or for those on lower
incomes a 100% grant up to £10,000 is available
for certain work, with insulation being one of the
main primary measures available. The vouchers,
which will be issued from the end of September
until March 31st 2021, will help pay for energy
efficiency improvements and the works “must be
completed by a TrustMark Registered Business” to
give householders quality assurance. But, like
many, James feels we’re in danger of repeating
mistakes of the past. Indeed, at the time of writing
in late August, no organisation has yet even been
appointed to administer the scheme. But more
Left: James Talman, NFRC Chief Executive.
importantly, James stated:
“Where’s the capacity to deliver
it? – we have all the dangers of
the Green Deal and worse again,
it’s been rushed through.”
He feels it’s up to the individual sectors to
make sure the GHG works: “We’ve got to make sure
it works. We can only do what we can for our sector,
so we’ve got to make sure the elements of a
properly designed, well insulated roof is absolutely
imbedded in the scheme and is being installed by
competent and accredited organisations – naturally,
we hope they’re members of the NFRC – but as our
custodial duty to the industry, we have to ensure
we’re helping and assisting government to ensure
it’s happening. And if it’s not happening, we have to
bang the drum!”
Missing link
James points to the lack of a “true conduit”
between Government and construction; someone
who “understands the specialist sectors” and
“knows the full competencies.”
Without that conduit, James recognises the
importance of “raising the influence of NFRC”, to
further develop that link between external
stakeholders and government to benefit NFRC
members and the wider roofing sector. He
explained: “My role has become increasingly policy
focussed due to the importance of ensuring NFRC is
supporting where necessary and challenging
policies proposed by Government.”
This was highlighted quite clearly around the issue
of operatives within construction returning to work
during the Covid lockdown, which turned into a very
Continued on page 16
14 TC SEPTEMBER 2020
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NFRC: Interview
Continued from page 14
divisive topic. “Professionally that was a very
challenging time for us,” explained James. “You’ve
got some individuals on social media making very
strong comments about putting people’s lives at
risk, when the government had made a quite
ambiguous statement on who should return to work
– but the government didn’t prioritise or give key
worker status to construction workers.”
James feels this put construction workers in a very
difficult position and the industry didn’t help itself.
NFRC actually wrote to Andy Mitchell at the CLC
regarding construction workers being afforded key
worker status, but this was not progressed. James
explained: “I think the industry should have lobbied
much harder for key worker status. CLC is doing a
lot of fantastic work but it should have been
absolutely adamant that if you want our buy-in, you
give us that status or recognition. That happened in
most countries, but it didn’t happen here.”
James continued: “We were a little concerned by
some of the direction of the early introduction of
operating procedures – we weren’t clear on the way
they were being developed and how the specialist
could input into those procedures. If you’re saying
clearly you want the industry to work, how are you
supporting industry to work? There was a little bit of
a disconnect – particularly when you’re getting
down to the granular level of bricklayer, window
fitter or roofer – it’s all very well in policy up there,
but for the person having to carry out the work,
that’s where the disconnect was.”
But going forward, should there be a second wave,
James feels “industry’s got its act together with the
way it’s operating” and construction should not be
significantly impacted. However, he cautions we
must not be complacent and industry, alongside
HSE, must continue to review industry infection
data and introduce measures that reduce the risk of
future outbreaks.
‘Member engagement & support’
I ask James what he’s learned from the recent
Covid pandemic, a situation with so many sensitive
pressures: “Covid has taught me to continue to
have faith in the two core objectives of member
Two to boost NFRC engagement:
New podcast: As part of its push for better
engagement, NFRC has launched a new
podcast called RoofTop where key issues
will be discussed with experts. Available
where you find your podcasts.
Major surveys: To help forecast, track and
tackle issues for members and the wider
sector, NFRC will be producing regular
surveys. Look out for their latest focus on
supply issues in roofing.
engagement and support, and raising the influence
of NFRC.” Going forward, James feels NFRC is very
well placed to have its say and really make an
impact: “One of the good things for our sector is we
are very broadly based; we’re in new housebuilding,
we are in RMI, we are in commercial and
infrastructure, so that’s helped us a lot in terms of
influence.”
The themes of influence, raising awareness and
engagement run throughout our discussion, and will
clearly be at the heart of James’ plans for NFRC
moving forward. NFRC recently announced its fourth
President of James’ tenure as Kevin M Taylor has
taken over from Steve Revell. And whilst James was
very clear about the “transformational change” that
was required within NFRC when he entered the role
of Chief Executive, he’s just as certain about the
best path for the Federation as the sector looks to
navigate what will no doubt be a tricky period for all:
“My ambitions are very much related to influence
and the acceptance of NFRC in the marketplace –
it’s all about growing influence.”
But how will the Federation go about achieving that?
James points to the “three strands of quality,
professionalism and social and environmental
values.”
Taking each individually, James feels training is the
crucial factor in ensuring quality is raised, but also
points to further digitalisation within the NFRC,
innovation and support through guidance.
With regards to professionalism, James says this
links heavily back to the CompetentRoofer Scheme
and RoofCERT accreditation. “We want the brand
CompetentRoofer and RoofCERT to reflect NFRC”,
and as mentioned earlier there are moves to bring
both further under the NFRC banner.
James says the social and environmental values
aspect links to inclusivity and most importantly,
safety: “I said early on my fundamental obligation is
to do my best to ensure that those who are in our
industry can work safely in it – and that’s obviously
become even more critical since Covid – you’ve
now got a relatively dangerous occupation,
combined with new working practices, and a rush to
get jobs completed – it has to be a case of health
before wealth.”
Off the back of meeting and maintaining those three
core values, James says it will “definitely help our
member retention and growth.”
Looking to the future
There’s no doubt there are more difficult times on
the horizon for the roofing sector and wider
construction industry, whether it’s further delays on
projects due to poor weather, adapting to changing
building regs, or the issues around supply of
materials and lead times as manufacturers delay
getting back to full capacity for fear of further
lockdowns and wider economic impacts.
But looking to the future, James feels the
environmental focus could offer some real benefits
for the roofing sector. Indeed, NFRC has joined the
UK Green Building Council in an attempt to “help
drive policies to encourage environmental change”,
and it’s “collaborating with the Solar Trade
Association to encourage innovation” and focus on
the use of energy producing roofing materials to
ensure they’re installed correctly. So, whilst the
hard work has been progressing throughout
lockdown at the NFRC to ensure it’s positioned well
to grow and maximise opportunities for members,
James says “we’re not going to take our foot off the
gas.”
Contact the NFRC
www.nfrc.co.uk
@TheNFRC
16 TC SEPTEMBER 2020
For fu
rther inf formation
or a hire quotation call
SEPTEMBER 2020 TC 17
SIG Roofing
BRISTOL HUB: ‘OPENING THE DOORS
TO ENHANCED CUSTOMER SERVICE’
Stuart Base, Marketing Director at SIG Roofing, explores what the business’s brand new
distribution hub in Bristol means for roofers in the South West, and how the investment
further enhances its customer service offering.
The start of September signalled an exciting
milestone for SIG Roofing, as we finally
opened the doors of our state-of-the-art,
purpose built distribution facility in the South
West of England. The move, which represents an
investment of more than £4m, was not just a
significant step forward for the business, but a
real statement of intent to boosting the support
we are offering to roofing professionals across the
South West of England and South Wales.
The launch of the facility, which is centrally
located at the More+ industrial complex in
Bristol, is the culmination of a programme of
investment across multiple aspects of our
business, designed to further improve the service
offering we can provide to our nationwide network
of customers.
But what does this mean on a practical level for
roofers and contractors? Firstly, the site benefits
from a number of excellent transport links, being
just a stone’s throw away from both the M49
motorway and Avonmouth Docks, one of the UK’s
busiest ports, making it easier than ever before
for us to get stock out to merchants and
contractors in the region.
What’s more, the scale of the facility, which
operates across more than 165 acres, will help
us further improve our stock and delivery
capabilities, guaranteeing an unbroken supply
chain across the region – a primary consideration
given that the South West is one of our key growth
areas.
This investment in stockholding will also help us
broaden the scope of products we have in stock;
ensuring we can maintain a wider breadth of
goods on-site at any one time, minimising the
“It’s clear to see that the ways in which
merchants and roofers access stock has
changed significantly – with online, click and
collect and door-to-door delivery growing
exponentially across lockdown”
SIG Roofing’s new South West distribution facility is on the
More+ site and benefits from excellent transport links.
risk of shortages and, ultimately, giving
contractors confidence that we have access to
any product they need, exactly when they need it.
New ways of accessing stock
Looking back over the past five months, it’s clear
to see that the ways in which merchants and
roofers access stock has changed significantly –
with online, click and collect and door-to-door
delivery growing exponentially across lockdown.
That shift in consumer habits is something we
were keen to reflect at the new facility, with the
site featuring a dedicated collection point from
which contractors can pick up pre-ordered stock.
Furthermore, for contractors or merchants
ordering online, our newly launched delivery
tracking and electronic proof of delivery functions
give total transparency throughout the entire
purchasing journey – from initial order to final
drop-off. In the warehouse itself, you’ll find some
truly leading-edge technology designed to
streamline the order picking process, while a
newly rolled-out route optimisation programme
will help our delivery drivers identify the most
economical drop-off route and work as efficiently
as possible.
Ultimately, we believe that each of these offerings
will help further improve the customer
experience, ensuring a smooth, hassle-free visit
to SIG Roofing – be it to the facility, or our
website.
The opening of the doors to our Bristol facility is
the latest chapter in our ongoing mission to
deliver customer service excellence. At the first
ever SIG Live event in July, our virtual mission
statement for the future of SIG, Philip Johns, the
business’s UK Managing Director, outlined a
strategy that put the customer at the heart of all
we do.
The launch of the Bristol Hub is very much part of
that, and we are looking forward to seeing firsthand
the benefits it delivers to contractors and
merchants in the South West of England, South
Wales and further afield.
Contact SIG Roofing
0845 612 4304
www.sigroofing.co.uk
@SIGRoofing
18 TC SEPTEMBER 2020
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Condensation Considerations
THE RIGHT TIME TO VENT
The improved levels of energy efficiency seen in new homes – thanks to changes to Part L
of the Building Regulations that support thermal insulation and air tightness – can
unfortunately lead to condensation damage if the roof is not also ventilated adequately.
Stuart Nicholson, Director of Roof Systems at Marley, discusses how contractors can avoid
this happening...
Moisture in the form of condensation develops on the underside of roof tiles and
slates, as well as the roof underlay, causing droplets to form in the batten void
and roof space. This can lead to damage to important components in the roof
space such as timber battens, rafters, fixings, and insulation, not to mention any
possessions left in the loft. In the worst cases, the build-up of condensation and moisture
can be so severe it penetrates the ceiling, causing damage to the rooms below.
If not dealt with properly, the presence of condensation leads to damp and mould, potentially affecting
people’s health and causing significant and expensive damage to a property. The good news is that, for
both new and refurbishment projects, there are some simple steps contractors can take to ensure roofs
are ventilated adequately and prevent problems appearing in the future. Paying attention to the following
roof-related areas will avoid harmful condensation build-up.
1Stick to the right standards Always comply
with BS 5250:2011+A1:2016 ‘Code of
practice for control of condensation in
buildings’ and BS 9250:2007 ‘Code of practice for
design of the air tightness of ceilings in pitched
roofs’. This means that a cold roof should have a
minimum of 10mm continuous ventilation at the
eaves and 5mm continuous ventilation at the ridge.
Contractors can use either a breathable or nonbreathable
underlay but must also make sure there
is the right amount of high- and low-level
ventilation to prevent condensation. This can be
achieved using an array of solutions, including
eaves ventilation, ventilated dry ridge systems,
ridge vents or multiple tile vents.
2A breathable membrane should not be
the only source of ventilation The term
‘breathable’ underlay is often
misunderstood because it suggests that
ventilation is not required. However, BS 5250,
‘Code of practice for the control of condensation
in buildings’, does not consider the situation
where it is proposed to provide no ventilation to
the roof void. As such, roofs will always require
some form of supplementary low- and high-level
ventilation in accordance
with BS 5250. This is also a
tried and tested approach
which avoids placing the heavy
long-term burden of effective roof
ventilation on one single element.
3Get a new specification for every
project Ventilation is a complex area,
with many different variables – e.g. the type
of roof covering, size of property, warm or cold roof
and whether it has a well-sealed ceiling.
Ventilation should not be dependent on one single
product or method. Just as contractors get a new
fixing specification for every project, it is advisable
to do the same with ventilation. Marley offers a
range of specification services to include the
appropriate choice of underlay and ventilation
systems to ensure secure pitched roof fitting and
the lowest possible risk of interstitial condensation.
4When increasing insulation, remember
the ventilation When looking to increase
loft insulation as part of a refurb project, then
time should be taken to check that the ventilation
has not been compromised as this can lead to a
Left: Stuart Nicholson, Director of Roof
Systems at Marley.
“Just as
contractors get
a new fixing
specification for
every project, it is
advisable to do the
same with ventilation”
condensation problem. If there is
eaves ventilation, then it is important
that the effective air path is not
blocked. Where insulation at
ceiling level is more than 300mm
deep, Marley provides the Universal
Eaves Vent Plus system (left), which has a
wider rafter roll and ensures good airflow.
5Full roof systems from a single
manufacturer Using a full pitched roof
system from one manufacturer guarantees
compliance with British Standards and minimises
call backs for issues such as condensation.
Marley’s full roof system includes a wide choice
of roof tiles or slates, as well as battens,
underlay, ventilation, dry fix systems and fixings,
backed by a 15-year system warranty. This
ensures the right level of ventilation and
guarantees the quality and compatibility of all
roof elements.
Contact Marley
01283 722588
www.marley.co.uk/solarinstall
@MarleyLtd
20 TC SEPTEMBER 2020
Batten Guidance
BATTEN’S CONTRIBUTION TO
HEALTH & SAFETY IN ROOF WORK
The Health and Safety Executive (HSE) recently published the fifth edition of Health and
Safety in Roof Work, and Shaun Revill, Trading Director at SR Timber, says it’s a timely
reminder of the importance of correctly fixing roofing batten on pitched roofs as part of wider
safe working practices at height.
It’s a very sobering reminder of the risks that
roofing contractors and the wider construction
industry face on a daily basis when you read
the opening lines of the HSE’s latest version of
HSG33 (June 2020), which says: “Working on
roofs is a hazardous activity because it involves
working at height. Roof work accounts for a
quarter of all deaths in the construction industry.
Falls through fragile materials, such as roof lights
and asbestos cement roofing sheets, account for
more of these deaths than any other single cause.
Not all the people killed while working on
roofs are trained roofers: many
people accessing roofs are
maintenance workers. There
are also many serious injuries,
often resulting in permanent
disabilities.”
The HSE’s new guide is a mustread,
as it contains guidance on how to
plan and work safely on roofs, covering new
buildings, repairs, maintenance, cleaning and
demolition. It also includes some guidance for
people not directly carrying out work on a roof,
such as clients, designers and specifiers, as roof
work is an issue not just for construction
companies but also other workers who the
document says “can also fall from or through
roofs”.
It’s very comprehensive, and it has to be because
of all the different factors that need to be
considered – from safe access to a roof to
working near gas flues / extraction vents.
It reminded me of what a small but vital part fully
graded roofing batten plays in the bigger picture.
We champion the virtues of
correctly graded batten that is
compliant with BS 5534:2014
+ A2:2018, primarily in terms
of the quality of the product.
However, it’s at times like
these that issues such as the
strength of batten come to the fore
and remind us of the role that batten can
play in ensuring safe working practice at height –
which is why it being correctly fixed is so
important.
Graded batten as a foothold
HSG33 makes it crystal clear
that graded roofing batten can
be used to walk the line of the
rafter/truss when fixed to
rafters set at 600 mm spacing –
the batten should be a minimum
size of 50 mm x 25 mm and should meet
the grading requirements specified in BS 5534.
Key points to fixing batten correctly
Roofing contractors should follow the safe system
of work, which includes the following key points:
• Use lengths of graded batten that are a
minimum of 1.2 m long so that they are able to
span at least three rafters. The reality is that
longer lengths are used – but it’s an important
reminder not to use offcuts that don’t span at
least three rafters.
• Not more than one in four battens should be
joined over one truss, and the best way to meet
this is to buy a spread of lengths so that joints
Shaun Revill, Trading Director at SR Timber.
can be staggered.
• Batten should be nailed to
the centre of the rafter. All
joints should be over a rafter,
with the batten square cut, with
each cut centralised to the rafter,
tightly butted and skewed nailed to avoid the
nails splitting the edge of the batten.
• For trussed roofs, the joints should be
staggered to avoid splitting the truss and to
provide bracing strength to the general structure.
The rule for this is:
– For gauges over 200 mm, you may only have
one joint on the same truss in any set of four
courses.
– For gauges under 200 mm, the ratio is still one
in four, but you may have three joints on the
same truss within any set of 12 courses.
• For abutments, eaves and top edges, the
batten should finish close to the side abutments
but not ‘digging into’ the underlay.
Although the above key points are drilled into
contractors, we’re happy to talk to anyone who
wants any further detailed information about how
we produce batten that conforms to British
Standards – and therefore within the parameters
of Health and Safety in Roof Work.
Contact SR Timber
01623 446800
sr-timber.co.uk
@SR_Timber_
22 TC SEPTEMBER 2020
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Perfectly Pitched
CONSULTANT CASE STUDY: A
FOCUS ON THE CLAY PANTILES
In his latest column, pitched roofing consultant John Mercer turns his attention to the
installation of traditional clay pantiles, and references two recent roof inspections he was
called out to where things had gone wrong…
In this, my third article in a series of case
studies of actual site investigations, I turn my
attention to traditional clay pantiles. I am
using examples from two recent roof inspections,
each involving clay pantiles, though from different
manufacturers.
Clay pantiles have been a familiar
sight in the UK roofscape for
hundreds of years, dating back at
least as far as the 16th century,
though pantiles base their
appearance on the ‘over and
under’ tiles introduced by the
Romans.
Traditional pantile design has not
changed much in all that time,
Above: Diagram shows the relationship between linear and
gauge adjustment.
though, of course, manufacturing
techniques have improved
hugely, enabling far greater
precision in the drying and
firing stages, as well as the
dimensional accuracy of the
finished products.
Traditional clay pantiles are
generally considered to be ‘fixed gauge’,
which means the contractor must determine
the most appropriate gauge for the batch of tiles
arriving on site. However, there is a relationship
between gauge and linear coverage such that
adjustment to gauge has an impact on linear
coverage, and vice versa. This means that, in
experienced hands, pantiles can be very versatile
in the way they are installed. But, in
inexperienced hands, that very versatility can
John Mercer, Pitched Roofing Consultant.
lead to all sorts of problems, as
I will demonstrate below.
Setting out
In this photo (below), the tile
gauge and the linear coverage
have been ‘stretched’ leading to large
gaps between the tiles at the mitre corners.
Apart from the untidy appearance of the tiling,
stretching the batten gauge reduces the effective
headlap between tile courses, so the combined
problems of large gaps and reduced headlap
increases the risk of driven rain ingress. To some
extent, the large gaps could be lessened by
decreasing the linear coverage, in other words by
Continued on page 26
Above: the tile gauge and the linear coverage have been ‘stretched’ leading to large gaps between the tiles at the mitre corners.
24 TC SEPTEMBER 2020
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Visit: protectmembranes.com/vikingair to find out more.
Or contact info@glidevaleprotect.com / 0161 905 5700 quoting ‘Viking Air’.
GLIDEVALE PROTECT, 2 Brooklands Road, Sale, Cheshire M33 3SS. Tel: 0161 905 5700 Fax: 0161 905 2085 Email: info@glidevaleprotect.com Web: protectmembranes.com
*Meets Zones 1-4 without need for additional counter batten or integral tape. Achieves unrestricted use for wind uplift - Zones 1-5 at 310mm batten gauge or when installed on sarking board.
Perfectly Pitched
Above: The tile gauge is too short for the tiles.
Continued from page 24
laying the tiles closer together across the roof,
though this would not compensate for the
reduced headlap.
In the above photo, the tile gauge is too short for
the tiles, causing the mitred corners of the tiles to
clash, leading to gaps between the tiles at the
headlaps. Too short a gauge makes laying the
tiles extremely difficult, with the roofer almost
having to ‘fight’ with the tiles to get them to lay.
Consequently, the resulting roof is neither
successful nor acceptable.
Tile manufacturers will tell you to check the
dimensions of the clay tiles on site to determine
the batten gauge, and with good reason. Clay
products shrink during the drying and firing
stages of production, so there is inevitably a
degree of size variation between manufacturing
batches. There is even a method for determining
tile gauge and side lap in the European clay tile
Standard, BS EN 1024. This method involves
laying out several tiles, with the specified
headlap, then taking measurements to ascertain
the average batten gauge. This method is better
suited to tiles that have a degree of adjustment in
their headlap; by measuring the tiles at minimum
lap, then again at maximum lap, an ideal average
gauge can be found. A similar method can also be
employed to determine the linear coverage.
For fixed gauge traditional clay pantiles, an
alternative way to determine the ideal gauge and
linear coverage – bearing in mind that these are
related – is to firstly lay a small panel of around
12 tiles on flat ground, without battens. By laying
out the tiles at the headlap and side lap specified
by the manufacturer, the ideal gauge and linear
Above: Mortared Ridge – “Failure to use dentils may result in premature failure of the mortar through cracking.”
coverage can be found.
Setting out and marking out across the roof is as
important as fixing the battens at the appropriate
gauge. This will not only make sure that the tiles
are laid at their correct linear coverage, it will
also enable the roofer to set the tiles in straight
lines from eaves to ridge, making for an
aesthetically pleasing result.
Mortar bedding ridges and hips
Many designers and building owners want to
preserve the traditional appearance of a clay
pantile roof by using mortar bedding for ridge and
hip lines, rather than modern, dry fix systems.
This is fine, providing it is done correctly, using
dentil slips to reduce the depth of mortar in
typical clay pantile troughs.
Failure to use dentils may result in premature
failure of the mortar through cracking, or even
slumping away from the ridges or hips before the
mortar has set. In both these roof inspections,
dentils had not been used and I found evidence of
the ridge bedding mortar cracking.
Traditionally, dentil slips can either be left
protruding from the mortar as a decorative
feature, or they can be fully hidden within the
mortar, particularly on bedded hips where the
pantile troughs do not form a regular pattern
along the length of the hip.
To comply with the requirements of BS 5534:
British Standard for slating and tiling, ridge and
hip tiles should be mechanically fixed to the
structure, i.e. using nails, screws, or clips to
supplement the mortar. The only exceptions to
this are buildings that are deemed to be
historically or architecturally important and a
traditional appearance must be preserved.
In summary:
• Always carefully check and measure the tiles
on site to determine the appropriate batten gauge
and linear cover.
• Always mark and strike out a roof to ensure
tiles are laid to straight lines from eaves to ridge.
• Remember to use dentil slips to reduce the
depth of mortar in each tile trough when mortar
bedding ridge and hip lines; these can be laid as
a decorative feature or completely hidden within
the mortar.
• Generally, ridge and hip tiles must be
mechanically fixed in addition to the mortar
bedding.
Contact John Mercer
www.johnmercerconsultant.co.uk
@Johnmercer3
26 TC SEPTEMBER 2020
Low Pitch Focus
MEMBRANE CHOICE IS CRUCIAL
Nick King, Area Account Manager at Klober, shares why roofing contractors must specify
specific product solutions for low pitch roofing applications, or risk their reputation with a
poorly performing low pitch roof.
To avoid problems with low pitch roofing
performance, the right membrane solution
needs to be specified and installed correctly.
If a contractor does cut corners, then a poorly
constructed low pitch roof can become problematic
as water can collect, and with nowhere to drain the
likelihood of water ingress is increased.
Roofing contractors can change the way that low
pitch roofs are perceived if they raise the roofing
standard by only using low pitch specific roofing
application products, including low pitch
membranes.
Why choose a low pitch membrane?
There are many practical and even financial
reasons behind the decision to choose a low pitch
roof, which depending on the roof covering could
be lower than 15 degrees. Usually, for residential
extension projects such as side extensions like
kitchens or bathrooms, a low pitch or a flat roof is
necessary in order to finish beneath second-storey
upstairs windows. Furthermore, opting for a low
pitch roof solution can also save money on the
upfront material costs and reduce the installation
time, when compared to other methods.
For a low pitch roof, a high quality membrane
solution is the key to safeguarding any roofing
investment.
Membranes explained
To explain, roofing membranes are strong
weathering barriers installed underneath the
roofing covering to protect against wind driven
rain and snow. The most common types of
pitched roofing membranes fall into two types –
breathable and non-breathable membranes. Both
provide the essential secondary barrier needed to
protect the property from unexpected water
ingress, but latest innovations have seen Klober
develop a membrane that is
capable of serving as a primary
barrier as long as it is covered
by a UV stable covering, such as
slate or tiles.
Other low pitch weathering
options do exist, but generally these will be more
costly and time consuming when compared to
using a specific low pitch membrane (a
membrane will need to be installed in most
situations anyway). A secondary build-up layer,
like a thin decking, can be used, or alternatively
some systems are available that incorporate
weathering devices which need to be installed
underneath every single tile or slate. With these
options, however, it is often mandatory to install
them alongside the manufacturer specific
membrane, which decreases flexibility and limits
the product choices for roofing contractors.
Innovation
Over the years, membranes have become more
technical and specific in design. This is especially
true for low pitch applications that need specific
membrane solutions to succeed or will otherwise
fail. To solve the challenges represented by low
pitch roofing, Klober’s Permo Extreme (above) has
been developed to precisely deliver solutions
where other membranes can’t and caters for
pitches as low as 12.5º for interlocking tiles, 15º
for slates and 22.5º for plain tiles. Permo Extreme
is also much stronger than the average underlay
on the market, in order to greatly reduce the risk of
ripping and tearing whilst installation takes place.
To complement the strides taken to improve
membranes, significant investments have been
made into the development of accessories such
as membrane tapes, and this has also improved
roofing performance. One example of such
innovation is Klober’s Permo
Extreme, which comes with double,
self-adhesive strips to provide a
guaranteed permanent seal of
overlaps, and in the case of
Klober's Butylon tape should also
be used to seal around any batten
nail penetrations. It is important to choose wisely
and recognise that not all tapes are made equally.
Failure to use tapes compatible with the chosen
membrane can lead to subsequent failures.
Why it’s important
The correct low pitch roofing membrane will
ensure that roofing contractors can overcome low
pitch roofing installation challenges with both
confidence and security that the roof will perform.
This cannot be underestimated, as even with all
the right precautions taken in terms of water
drainage and overall roofing performance, low
pitch applications represent a particularly unique
challenge. This is why selecting a highperformance
membrane solution can make all the
difference in such applications.
Roofing contractors can now complete projects
with the peace of mind and reassurance that in a
low pitch roofing application, performance doesn’t
have to be compromised when the correct
products have been chosen. With the help of
manufacturers who continue to innovate
membrane performance and target specific
project applications, building and roofing
contractors can be supported with the most up to
date roofing product solutions, specification
support and installation guidance.
Contact Klober
01332 813 050
www.klober.co.uk
@KloberLtd
28 TC SEPTEMBER 2020
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Viewpoint
INSTALLING AT-HEIGHT BALCONIES
AND TERRACES TO BS 8579
By Julian Thurbin, Director at Wallbarn.
Anew British Standard, which aims to
address the fire performance of at-height
balconies and terraces, is a welcome step
in a very positive direction to prevent or reduce the
severity of blazes involving residential multi-storey
buildings.
Work on BS 8579 Guide to the Design of
Balconies and Terraces began well before the
2019 fires in multi-storey buildings including The
Cube in Bolton, De Pass Gardens in Barking and
Worcester Park, south west London, underlining
how relevant the new standard will be.
The standard will support Approved Document B
in the prohibition of combustible materials on
new high-rise homes. It is believed that all
construction elements for balconies and terraces
located more than 18m above ground level will
have to be non-combustible.
Confusion created
However, we are concerned that its introduction
has created some confusion within the market
and opened the door for inferior quality, noncompliant
products to be installed in the place of
tried-and-tested, quality building and roofing
materials. We feel it would be a travesty if, in a
move to improve safety standards, lower
performance products find acceptance with
contractors.
Our sector – pedestal systems which support
suspended balcony and terrace decking/paving –
is a good example of this. Traditionally, pedestals
were heavy duty polypropylene plastic but to
satisfy BS 8579 they will have to be metal when
installed at height. These products are available
– Wallbarn has developed MetalPad, an allmetal,
Class A1 rated pedestal that is fully
compliant with BS 8579 – but we know that
systems have come to market that are seemingly
compliant but have rubber or
plastic elements labelled as
‘gaskets’. These gaskets
shouldn’t be included, in our
opinion, and pose a fire
risk.
Quality and testing concerns
We are also concerned
about the quality and
testing regimes of
some metal pedestal
solutions. From sampling the
market we worry that not all products offer the
level of performance we feel is required, with
some pedestals modified from interior usage.
There’s also the question of product testing, a
crucial factor given these systems are used atheight.
Load-bearing is critical. However, our
advice is always to consult with your original
supplier (whatever the product and even if they
do not supply a Class A alternative) to at least
understand the questions you should be asking of
a new supplier.
This situation has the potential to affect a wide
range of building components within balcony and
The Metalpad Pedestal
Wallbarn’s new Metalpad pedestal (above) is
rated non-combustible Class A1 to BS EN
13501-1 and has been specifically designed
for exterior high-rise balconies, terraces and
flat roofs. The product is manufactured from
2mm thick galvanised steel and has a solid
stem for superior weight tolerances – over
1,000kg per pedestal. The manufacturer has
more than 40 years’ experience in the market
and prides itself on developing solutions that
are fully tested and fit for purpose.
Left: The Metalpad Pedestal
from Wallbarn.
terrace construction. We are
receiving high volumes of calls from
construction professionals confused about the
current regulatory situation and the products that
can – and cannot – be considered. We’ve also
heard reports of completed and fully legal
multi-storey projects being revised,
with materials removed post signoff
and replaced with Class A
systems, in extreme cases across an
entire build and not just 18m and above.
Designed for purpose
Product provenance is also an issue to be
considered; recent industry talk suggests that
imported product was rejected by two main
contractors upon arrival at site due to quality
concerns. It is good to hear that, despite the
inevitable project delays and additional costs
such action would have created, quality was
considered more important. Again, our advice is
to ask the right questions during specification to
ensure that the solution selected is designed for
purpose, fully tested and supplied by a trusted
partner.
Post-Grenfell, with duty of care being a shared
responsibility throughout the design, supply and
installation chain, contractors installing pedestals
at-height must be assured that their product of
choice can withstand the rigours and loadings of
exterior locations. System failure at height has
the potential for tragic consequences.
Contact Wallbarn
020 8916 2222
www.wallbarn.com
@wallbarn
30 TC SEPTEMBER 2020
Advertorial
PROTECT AND SERVE
Glidevale Protect’s next generation roofing underlay offers
superior air permeability and strong wind uplift resistance.
Building products
manufacturer Glidevale
Protect has launched Viking
Air, an air and vapour permeable
(LR) roofing underlay for cold and
warm pitched roofs.
Air and vapour-permeable membranes are
becoming an option of choice for specifiers due to
the ability of the underlay to provide airflow and
ventilation into the roof space of the dwelling.
Protect Viking Air delivers the solution to this
requirement through class-leading air and vapour
permeability. This reduces the risk of condensation
in line with BS 5250, without the need for additional
ventilation, which is acceptable to the NHBC for a
cold roof construction.
Viking Air’s resistance to wind uplift
ensures suitability for use in wind
zones 1-4 at 345mm batten gauge
to BS 5534, with no need to tape
laps or use additional counter
battens. When the membrane is installed at
310mm batten gauge or on sarking, it also meets
wind zone 1-5 requirements, ensuring unrestricted
use across the UK and Ireland.
With a unique grid design to make precise cutting
simple, the underlay can be laid straight over the
ridge without cutting material short, ensuring the
roof is instantly watertight during the construction
stage, and, because the membrane is
hydrophobically treated, it provides extra water
shedding properties and a high resistance to water
Above: Protect Viking Air is suitable for cold and warm
pitched roofs and has a unique grid design to make precise
cutting simple.
penetration. The product is independently certified
by BM TRADA.
Viking Air forms an integral part of Glidevale
Protect’s roofing membrane family. This includes LR
vapour permeable and airtight options, alongside
impermeable HR underlays which can be twinned
with Glidevale Protect ventilation products and
accessories, giving specifiers and contractors a
single source solution, whatever their pitched roof
challenges.
Contact Glidevale Protect
Email: info@glidevaleprotect.com
protectmembranes.com/vikingair
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SEPTEMBER 2020 TC 31
Coating Developments
KEY ADVANTAGES FOR OPERATIVES
Guy Williams, Managing Director of Blocksil, discusses recoating technology for pitched
steel roofs and industrial buildings, and outlines the advantages he sees of incorporating
Graphene to assist with corrosion resistance into the Alltimes Advantage range ...
The recoating of aged, worn and corroded
pitched steel roofs on commercial and
industrial buildings is an established
market both here in the UK and overseas. But
coating development tends to be gradual with
incremental improvements in the base resins or
the additives, with very little brand new
technology happening.
Blocksil’s very existence is centred around
coatings innovation. In recent years we have been
working on improving the somewhat moribund
roof coating market and, with our distributor
Alltimes Coatings of Stroud, Gloucestershire, who
sell the coating under their Advantage brand,
have taken the UK market by storm. Our roof
coating uses the latest generation hybrid
chemistry and is significantly quicker to apply
than other, older technology systems. This helps
reduce time on the roof and cost for all
concerned.
As part of our ongoing ethos of product
development, we came up with the idea of adding
Graphene to our roof coating to further enhance
its corrosion resistant properties.
So, what is Graphene?
Graphene was first isolated in 2004 at The
University of Manchester. They used sticky tape
to remove single layers from the surface of
graphite and deposit them onto a silicon wafer.
The isolation of Graphene was a breakthrough
which ultimately won the 2010 Nobel Prize for
Physics.
In its purest form Graphene, has a molecular
structure comprising of a single layer of
Carbon atoms bonded in a hexagonal structure.
Graphene possesses an unsurpassed
Above: Application of the Alltimes Advantage range on both a roof and gutter.
combination of mechanical, electrical and
thermal properties. The Graphene used in
Blocksil’s corrosion resistant coating is
manufactured using a synthetic, bottom up
process that is repeatable, proven and almost
completely free of Graphitic impurities, Graphene
Oxide or transition metals.
The number of atomic layers varies but our
Graphene typically has a 1 to 10 nanometre
thickness with 1 to 15 microns lateral diameter,
resulting in aspect ratios up to 1:1000.
To put this into perspective, the surface area of
ten grams will cover a football pitch!
This large surface area provides an exceptionally
long and tortuous path for any corrosive liquid to
work its way through a coating.
Our Graphene manufacturer and supplier, Applied
Graphene Materials (AGM), was founded by
Professor Karl Coleman in 2010, with its
operations and processes based on technology
that he initially developed at Durham University.
The creation of their Graphene is through a
proprietary, patented process.
Andy Gent, Commercial Director at AGM, has
worked with Blocksil from the beginning of this
project and explains: “Blocksil’s idea to use our
Graphene within their corrosion resistant roof
coating has taken everyone forward in terms of
coating technology.”
Introducing the Graphene into the roof coating
was and is a complex process as it cannot just be
poured into the mix. The detail of the process is
confidential but we can say that there had to be
some work on pigmentation. Graphene is Carbon
which is black of course. And as soon as you
change one constituent another needs tweaking.
But it is here now and all can benefit from the
enhanced performance.
Our standard roof coating will give some 5,000
hours of salt spray (ISO9227 – Neutral Salt
Spray, with testing in continuous 5% Sodium
Chloride solution at 35ºC). The addition of
Graphene takes us past 10,000 hours! The
coating has also been successfully tested to
EN13501-5:2016 and BS476:Part 3:2004 as well
as EN45545-2:2013 for the railway industry.
Continued on page 34
32 TC SEPTEMBER 2020
Coating Developments
Continued from page 32
For steel roofs, a 30 year product warranty is
available.
Our distributor, Alltimes Coatings, has created a
fantastic Continuous Professional Development
(CPD) entitled “Rust Never Sleeps”. This highly
professional online CPD presentation explains in
great detail just how the Graphene Enhanced Top
Coat benefits steel surfaces. The CPD is available
via Alltimes Coatings
(www.alltimescoatings.com).
How does the Alltimes Advantage range
benefit the operative?
The coating is solvent, isocyanate and VOC free,
has no membrane and is applied as a single coat
once the surface has been prepared. Because of
its impressive spread rate, contractors can cover
much larger surface areas than before and its
stop / start technology also means Advantage can
be applied in stages without any time restrictions.
This gives contractors a new level of freedom and
flexibility and no more adhesion problems with
day edges and cut ins around rooflights and
furniture.
Thanks to its one coat nature, speed of
application is quicker and, with contractors only
having to traverse the roof once, foot traffic can
be reduced by 50% compared with other
offerings. This makes Advantage more efficient
and economical.
Scaffolding is needed for less time and safety is
greatly improved with operatives spending less
time working at height. Advantage does not need
‘hazardous storage’, which makes onsite logistics
of handling and storage easy.
The Advantage system is designed for a wide
range of roof types and purposes. As well as
roofing, Advantage can be used on guttering
which makes stock ordering and control much
easier for the contractor.
“As well as roofing, Advantage can be used on
guttering which makes stock ordering and
control much easier for the contractor”
So where else can Graphene be used
within the coating industry?
Blocksil is certainly working on incorporating it
into other coatings, paints and treatments to take
advantage of the enhanced corrosion resistance
offered.
And what other developments are there
for roof coatings?
Work is underway looking at developing improved
infra-red reflectance. The idea is for a roof
coating that reduces the amount of infra-red
radiation absorbed by the coating, thereby
reducing the amount of heat passed through into
the building. This modification to the coating will
add nothing to the weight of the paint as we will
be modifying the pigments and additives already
in use. This is an important point – a number of
roof coatings currently offered on the market
require multiple applications which can lead to
some alarming weights being needed to be
carried by the roof.
Application of the paint would be by conventional
means, so there would not be any additional or
particular specific requirements and existing
colour schemes would be honoured, so there
would not be any obvious difference. The
increased cost of the modified coating will be
insignificant when compared with application
(which has to be carried out anyway).
To summarise, Alltimes Coatings are continuing
to have success with the Advantage Graphene
Enhanced Top Coat for steel roofs and we expect
this success to continue. Blocksil will continue
our efforts to bring the very latest ideas and
technology to the roof coating industry, through
Alltimes Coatings. Chris Knowles, Chief Technical
Officer at Blocksil comments that “we believe it
is time the industry moved into the 21st Century
and away from older, less efficient coatings and
we’re certainly well placed to help that happen.”
Contact Blocksil / Alltimes Coatings
www.blocksil.co.uk
www.alltimescoatings.com
34 TC SEPTEMBER 2020
NEW!
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Turn your roof into a stunning work of art with TapcoSlate Classic Coachman Mix,
in stock now for immediate dispatch!
Why have “ordinary” when you can have a roof that stands out from the crowd? Our new Coachman Mix is just the WOW! factor your
home needs. With all the benefits of our TapcoSlate Classic tiles, Coachman bundles a mix of three complementary colours formulated to
replicate the subtle, beautiful colour variations of a natural slate roof but with the ease of fixing and maintenance that TapcoSlate Classic
provides. This simply stunning mix is now stocked in our UK warehouse to adorn your project today!
Easy to install with pre-marked nailing
and exposure guides, plus horizontal
spacers
Easily cut with a sharp utility blade
or saw
BRE testing for wind-driven rain found
TapoSlate Classic to perform much
stronger than all equivalent materials tested
No sorting, clipping or drilling, can be
fixed direct to roof, out-of-the-pack
Fully tested to BBA Standards, including
fire, wind, driven snow & rain, and
water absorption
No breakages – will not crack, split or
break if dropped or walked upon
Lightweight – as low as 12kg per m 2 Low 14° pitch 40-year warranty
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www.TapcoRoofingProducts.com Tel: 01482 880478
Rooflights
FIVE KEY REASONS TO AVOID
UNDER-SPEC ROOFLIGHTS
NARM, the National Association of Rooflight Manufacturers, says it has recently received
a number of complaints relating to glass rooflights which have either been sourced from
a disreputable manufacturer, or fabricated by a non-specialist builder. Jeremy Dunn,
NARM Product Standards Representative, highlights a number of concerns regarding
such products...
Over recent years, there’s been a huge
surge in popularity for modular flat glass
rooflights which are widely specified for
domestic and commercial projects – and with
good reason. There’s a large range of excellent,
very high quality examples available from
reputable suppliers, all of which offer superb
aesthetics and very high performance with
excellent U-values.
However, NARM has recently received a number
of complaints regarding product performance
from individuals who have installed or
commissioned what they believed to be high
quality products, only to be disappointed. More
importantly, a number of these instances have
also revealed major safety concerns.
As the trade association representing bona fide
high quality UK rooflight manufacturers, we’re
concerned that this minority of ‘rogue’
manufacturers are giving our industry a bad
name and we’d like to set the record straight. So,
here are the reasons why you should reject
under-spec rooflights and how you can avoid
being ‘sold a dud’.
1Safety of building occupants To ensure
those below the rooflights are safe, the
first choice for the inner pane of a rooflight
should be a laminated glass, as this
minimises the risk of any glass falling into the
room beneath and consequent injury, if the inner
pane should break.
Toughened glass inner panes bring a risk of
“NARM is aware of
some manufacturers
taking advantage of the
fact that the term
‘toughened’ implies
safety”
shattering and falling into the room beneath –
occasionally spontaneously, but certainly if
impacted. NARM is aware of some manufacturers
taking advantage of the fact that the term
‘toughened’ implies safety. In this instance, it
does not.
British Standards define that inner panes must
always be laminated wherever rooflights are more
than 5 metres above floor level (increased to 13
metres in limited circumstances) or are located
over water (e.g. swimming pools). The British
Standard may permit use of toughened inner
panes in other applications but only if a stringent
risk assessment is carried out, confirming that its
use does not give any additional risk to those
below the rooflight. It is difficult to see how use of
a toughened rather than laminated glass inner
pane doesn’t present a risk to anyone beneath the
rooflight, so you should always ensure that the
inner pane is laminated glass.
Some more economical designs consist of nothing
more than a double glazed unit stepped on all
four sides with no perimeter frame, with the outer
pane sealed to the top of an upstand and the
inner pane hanging inside the upstand. Such
designs are not preferred, having much greater
reliance on quality of site installation, but if they
are used it is essential that the installer provides a
continuous support for the inner pane on all four
sides, to avoid risk of the whole rooflight dropping
into the building beneath if the outer pane should
be broken. Should this be overlooked or the work
carried out to a poor standard, there is a serious
risk of injury to anybody below should the outer
pane of glass break or the edge seal fail.
2Safety for personnel accessing the roof
In addition to using a laminated inner pane
to protect building users, rooflights can
also be specified and designed to be non-fragile.
This is intended to ensure that anyone
accidentally walking or falling onto the rooflight
will not fall through it, even if the glass is broken
or the rooflight damaged. In this instance, a
9.5mm or 11.5mm laminated inner pane is
usually necessary (depending on rooflight size) to
comply with non-fragility requirements.
CDM Regulations require that a risk assessment
should be carried out for every construction
project, and this should define the measures
required to prevent significant risk of anyone
falling through a rooflight. Wherever there may be
risk of anyone ever being on a roof near a
rooflight that they could accidentally step or fall
onto (e.g. for maintenance purposes), you should
specify a non-fragile rooflight.
Continued on page 38
36 TC SEPTEMBER 2020
Rooflights
Continued from page 36
3Watertightness and water run-off
Another major cause for complaints has
been leaking rooflights causing damage to
roof structures and interior decorations. NARM
has been contacted regarding instances where
the glazing frame has been poorly designed, or
the rooflight has been installed poorly and/or
without sufficient pitch to allow water run-off,
resulting in water building up on the glazing and
eventually penetrating edge seals.
Most high quality glass rooflights incorporate a
glass unit factory bonded into a fully thermally
broken aluminium frame, which includes a drip
detail to ensure the unit is fully watertight as
soon as it is fitted onto an upstand. They should
be sealed to the upstand on site (for airtightness
as well as watertightness), but the seal is only a
secondary seal, rather than the primary means of
preventing water ingress. In some more economic
designs there is no frame, and the glass is simply
sealed to the upstand on site. The absence of any
drip detail on a frame means water can easily
track back on the underside of the glass, and
watertightness of the units becomes entirely
dependent on the quality of the site-applied seal
(often onto an upstand which is not flat and level,
after the upstand itself has been weathered),
which can cause leaks: this style of rooflight
should therefore be avoided.
Glass is not completely rigid and any glass rooflight
will bow slightly under the effect of gravity. Flat
glass rooflights should therefore always be
installed at a slight pitch to avoid ponding (which
would otherwise occur if the bow created a
negative pitch). Typically, smaller rooflights should
be installed at 3 degree pitch, and larger flat glass
rooflights should be installed at 5 degree pitch. You
should always make sure that the contractor who
is building the upstand is aware of this pitch
requirement, to avoid the unsightly problems
associated with ponding (including rapid dirt buildup,
and potentially water ingress).
Some rooflights are offered with “self-cleaning”
glass, which is misleading: true self-cleaning glass
“We’re aware of
rooflights being
supplied for domestic
use with no mention of
Part Q”
(such as Pilkington Activ) works best at pitches
above 30 degrees, with a minimum pitch of 10
degrees so is not suitable for flat glass rooflights.
Some grades of low maintenance or easy clean
glass can be used, but still require regular cleaning.
4Security For domestic properties, Part Q
Building Regulations states that rooflights
deemed as easily accessible need to be
proven to resist criminal attack or incorporate
features that are proven to reduce crime. We’re
aware of rooflights being supplied for domestic
use with no mention of Part Q. Even rooflights
supplied with a laminated inner pane may not
pass Part Q testing as the outer could be broken
and then the inner pane just lifted out of the hole.
5Thermal performance It’s important that
manufacturers state ‘whole product’ U-
values to ensure thermal performance
which will allow compliance with Part L Building
Regulations. Some manufacturers are quoting
‘centre pane’ U-values which do not take into
account edge spacers and frame construction.
The thermal performance of a rooflight must be
considered for the whole assembly, because while
glazing may be compliant, poor frame design can
affect thermal performance. This can result in
higher energy bills for building users and
subsequent unwanted higher CO2 emissions.
Above left & inset: The glazing on this rooflight was not
properly fixed, resulting in it being blown off in windy
weather and ending up in a nearby garden. Luckily, no one
was injured in this instance.
Remember: a great looking rooflight isn’t
necessarily a great rooflight
NARM has noted that in many cases where
complaints have occurred, the manufacturer is
targeting homeowners with sophisticated
websites and literature focusing heavily on the
aesthetics of the product and often claiming
excellence in quality standards. Some have even
referenced NARM documents on their marketing
materials; beware!
In a crowded marketplace, where some
manufacturers are making confusing or untrue
claims, careful consideration needs to be given to
rooflight choice if problems of water ingress,
ponding or worse still, inadequate safety, are to
be avoided.
The good news is that there are many excellent,
trustworthy UK suppliers of properly designed
rooflights which will offer years of safe and
reliable service. One simple and certain way to
ensure you’re dealing with such a company, is to
establish whether your supplier is a NARM
member company. NARM has stringent
membership criteria, a key part of which is that
any product supplied by a member company is
fully compliant with Building Regulations and
meets all required specification and safety
standards.
Contact NARM
www.narm.org.uk
@_NARMUK
38 TC SEPTEMBER 2020
Profiled GRP rooflights & sheets
FILON HAS IT COVERED.
Trusted solutions from the GRP construction products innovator: • Factory- and site-assembled
rooflights • Opaque sheets • All current & discontinued profiles available • Standard & reinforced
grades • Lightweight over-roofing • Chemical resistant grades • GRP barrel vault rooflights
• Fixsafe safety fixing system • and more...
t: 01543 687300
e: sales@filon.co.uk
Filon Products Ltd, Unit 3 Ring Road, Zone 2, Burntwood Business Park, Burntwood, Staffs WS7 3JQ
www.filon.co.uk
Daylighting: Commercial Projects
VELUX COMMERCIAL: ‘TRUSTED
SUPPORT FOR CONTRACTORS IS KEY’
The experts at VELUX Commercial discuss the range of support they can offer to contractors
and installers to ensure projects run smoothly...
Since 2018, The VELUX Group has been
working to create a new division, VELUX
Commercial, which focuses on bringing
daylight and fresh air into commercial and public
buildings.
VELUX Commercial has expanded its product
offering in the UK by bringing together
organisations Vitral, Xtralite and VELUX Modular
Skylights, enabling us to offer more to our
customers under one roof. As well as the
solutions we offer, our expertise, knowledge and
support offering has also vastly increased.
We understand the importance of supporting
contractors and installers throughout a project
programme, from product selection and technical
support, through to installation and aftersales
service across all commercial projects.
And all of this has culminated in VELUX
“VELUX Commercial’s solutions help deliver
project certainty in the early phases and their
customer service is always focused on assisting
with the delivery of the project”
Chris Allen, Design Manager at Bowmer + Kirkland
Commercial being able to provide a truly ‘onestop-shop’
approach for all our customers,
ensuring trusted support throughout
manufacturing, delivery, installation and after
sales service for our solutions.
Here are some of the ways our trusted support
approach benefits you, the contractor, at every
stage of your project:
• We are your partner all the way: We are
available for support and guidance to make the
project a success for you, your partners, and your
customer.
• Planning of delivery: Know the delivery time
to accurately plan installation schedules
providing product certainty.
Continued on page 42
40 TC SEPTEMBER 2020
Daylighting: Commercial Projects
Contractors on Oasis Academy project benefit from VELUX Commercial’s support
A recent project delivered by VELUX Commercial demonstrated the true benefits of this collaborative
approach. Having engaged in the early stages of the Oasis Academy project in Leesbrook, VELUX
Commercial worked closely with Pozzoni Architects and Galliford Try to create a more commercially
viable solution. This early collaboration and use of the VELUX Daylight Visualizer simulation tool
enabled the delivery of a significantly lower cost solution to the project, whilst improving the daylight
and ventilation performance for the academy.
The original design introduced six roof areas with 24 horizontal penetrations of varying sizes to yield
sufficient daylight provision. The Daylight Visualizer tool simulated the daylight factor (DF),
luminance and illuminance to accurately predict the daylight levels, quantity, distribution and the
appearance of the space when lit by natural light. The data was interpreted and presented in a
daylight report by VELUX Commercial providing some unexpected results.
The suggestions for five of the design areas was to reduce the number of skylights from 24 to 18 and
in one area to eliminate skylights altogether, resulting in significant savings also whilst maintaining
the optimum daylight into the building’s various rooms.
Continued from page 40
• Safe installation: We can provide various
types of installation support and assistance for
you and your teams from training to
comprehensive guides and providing our own
installation teams – dependant on the solutions
specified.
Before considering the results of the Daylight Visualizer recommendations, the design was oversized
in terms of roof openings. The suggested reduction from 24 to 18 openings would see a 33% cost
reduction in supply and install, equating to savings of approximately £49,000.
“We understand the importance of supporting
contractors and installers throughout a project
programme”
• Technical support: Get technical help all the
way from design and specification to installation
and commissioning.
• Project optimisation: Let us help you optimise
your solution in terms of indoor climate and
structural design.
• Dedicated Aftersales service: If, for some
reason, the system requires professional service
our technicians are never far away and ready to
solve the problem.
Working together to bring daylight and
ventilation to commercial projects
Whatever the solution to be installed from our full
range, VELUX Commercial will ensure you have
everything you need to install our products
efficiently, safely and to the highest possible
standard.
Our solutions are backed by comprehensive
guarantees for your peace of mind, and our
dedicated experts are available to discuss your
installed solutions should you have any queries
throughout the product’s lifecycle.
From product and installation support, to our
comprehensive aftersales service, VELUX
Commercial’s ‘one-stop-shop’ approach
ensures we are always there when you need us.
Contact us on the details below to discuss your
next commercial project in greater detail, or to
download VELUX Commercial’s comprehensive
brochures covering our solutions and services:
Contact VELUX Commercial
www.commercial.velux.co.uk
@VELUXCommercial
42 TC SEPTEMBER 2020
Roofing Updates
For further info on all these updates and more, visit www.total-contractor.co.uk
WATERSHED MOMENT
Cost-effective and guaranteed for 20 years,
the bespoke solution devised by BMI UK &
Ireland and contractor Watershed Roofing
gave a Yorkshire primary school roof a new
lease of life and solved its ponding problems.
Working on behalf of Delta Academies Trust,
surveyors David Yeadon called in Watershed
Roofing to inspect the roof at Simpsons Lane
Academy in Knottingley, West Yorkshire. The trust
was concerned because the school roof had large
areas of ponding water that had arisen as a
result of its prefabricated design which used
CLASP componentry, a prefabricated, lightgauge,
steel building system widespread
throughout the late 1950s and 1960s.
These original buildings had been extended
several times without due consideration for the
roof and its drainage. For example, the
prefabricated units were supplied with internal
drainage on the assumption that they would be
separate buildings, and this was still in place –
sometimes just covered with boarding, despite
the units being part of a complete school complex.
Working together with David Yeadon Surveyors,
Watershed and BMI determined that stripping out
the existing roof would be complex and
unnecessary as an alternative less invasive
system that offered better value for the academy
was identified. The refurbishment roof
specification included utilisation of the existing
system as the substrate, with the subsequent
application of the BMI Thermaweld FireSmart
warm roof system, incorporating a new cut-tofalls
insulation scheme.
“We’ve got a good working relationship with BMI
and its technical support team,” explained Craig
Bull, David Yeadon Project Manager. “The cut-tofalls
system that it designed addressed the issues
that we had with the sub-base and did so with
very detailed drawings and a clear specification.”
Careful preparation being paramount, Watershed
had to remove and re-size all the glazing to the
high-level roof of the hall, raise the masonry
The roof at Simpsons Lane Academy, West Yorkshire.
upstands, remove several redundant rooflights
and vents, and then make good. The internal
drainage, which was often covered by a board
between two neighbouring units, was removed and
replaced with external drainage for the new roof.
The cut-to-falls insulation scheme was carefully
designed to accommodate the increase in system
height whilst working within the threshold
parameters. Watershed Roofing demonstrated
excellent workmanship, showing specific attention
to the tapered insulation and complex detailing.
“It was a fairly challenging scheme to lay, not
only because of the complex board construction
but also the alterations and detail required to
accommodate the raised height,” explained Mark
Atha, Director of Watershed Roofing.
www.bmigroup.com/uk
ASHDOWNE ADVANCEMENTS
Marley has launched an enhanced Ashdowne clay handcrafted range, following
manufacturing innovations.
Above, Ashurst: Available in two colour options – Ashurst
and Aylesham Mix – the Ashdowne tiles can create the
warmth and character of a traditional hand-made roof.
www.marley.co.uk/ashdowne
Thanks to advancements in processing technology, the new Ashdowne tiles feature subtle distressed
edges and irregularities, replicating a hand-made tile aesthetic. The evolution of this popular tile enables
contractors to achieve a unique, hand-made look, with all the benefits and cost effectiveness of a
machine-made clay tile. In addition, the Ashdowne range is fully compatible with the Marley full roof
system, complemented by a range of fittings and accessories, and covered by a 15-year guarantee.
ADVICE NOTE ON SAFE ROOF WORK FROM MCRMA
The Metal Cladding and Roofing Manufacturers Association (MCRMA) has published a new Advice Note, AN 06 Safe working practices on roofs:
the distinction between ‘walkable’ and ‘non-fragility’.
MCRMA says two commonly used phrases within the roofing industry to describe specific aspects of roofing systems, products and components are
‘walkable’ and ‘non-fragile’, but the phrases are not the same and are not interchangeable in scope or in their meaning. As such, this document is intended
to remind all those involved in roof work that they have a responsibility to be aware of the most up to date advice on safe working practices and also be
compliant with the legal requirements; buildings must be designed with safety in mind, not only for the construction period itself but also throughout the
normal life of the building, including the safety of people involved in maintenance, installations, inspections, repair and even demolition. www.mcrma.co.uk
44 TC SEPTEMBER 2020
THE BIG BATTEN QUESTION
Roofers and contractors are being encouraged to ask their suppliers whether their timber roofing batten is dipped or
pressure-treated with preservatives.
SR Timber is making the call after a preservative manufacturer reported an increase in cases of batten that has been dipped rather than
pressure-treated. The company says that to the naked eye, dipped and pressure-treated batten can look the same, especially if the batten is dyed a specific colour.
However, the preservative does not penetrate the batten in the same way when the batten is dipped rather than pressure-treated, and this can impact the long-term
performance of the batten. SR Timber’s Trading Director Shaun Revill said that the company that supplies the preservative treatment for Premium Gold had been
tipped off about the rise in the number of cases of batten being dipped instead of pressure-treated. “We’re suggesting that roofers and contractors ask their suppliers
a simple question: has it been dipped or pressure-treated? – particularly if the price of the batten seems extremely competitive,” said Shaun. “If they’re still unsure,
they could go one stage further and ask their suppliers for treatment certificates, as these stipulate details on how and what the batten has been treated with. There
is also a specific marking on the side of a length of batten. In our case, we use the Q symbol as a sign of certification for the Q Mark. This denotes that the batten has
been independently assessed by third-party quality assurance experts and shows that the grading, preservative treatment, product marking and management
processes have all been independently audited and verified by a good third-party body, in our case a UKAS-accredited expert.” www.sr-timber.co.uk
DIGITAL OVERHAUL FOR KLOBER
As more roofing and building professionals are looking online for advice, guidance and
technical information, Klober has fast-tracked a project to overhaul its digital suite of assets.
With the pandemic influencing many companies to change direction in terms of 2020 priorities,
Klober decided early on in the lockdown to invest more time into improving its online offering. Central
to Klober’s strategy was the fact that most internet traffic now comes from mobile devices – 52.2%
of worldwide traffic coming from mobile phones in 2019 compared with 16.2% in 2013.
The main part of the project has centred around a new website launch and product brochure that will
make it easier for customers to digest information ‘on-the-go’. Stuart Stockley, Managing Director at
Klober, said: “As we adjust to life in the context of Coronavirus I am moved by what our industry has
achieved when everyone is focused on achieving the same goals. The speed at which suppliers,
merchants and contractors have adapted is phenomenal, and the advancement of digital services
has been impressive for an industry which traditionally thrived around human interaction. The latter
is something we felt we could improve upon to support our customers through such a challenging
time, so I’m really proud of what our team has achieved in such a short timeframe.”
Klober’s online overhaul is due to continue with the
business now looking into new ways to make product
data more accessible to merchants and stockists. The
business is also looking at ways to evolve its training
offer to work remotely, and will be developing a helpful
video series.
The new site features Klober’s first advanced stockist locator, easier navigation and improved
technical information. www.klober.co.uk
RUSSELL BOOSTS ITS DRY FIX CAPACITY
Russell Roof Tiles has invested £35,000 in upgrading its dry fix machinery to enable the business to increase capacity
of its roofing accessories.
Daniel Hancox, Russell
Roof Tiles.
The firm has purchased a new injection moulding machine from Borche. The new machinery will assist with the production of dry fix
system components at Russell Roof Tiles’ Wetmore Lane site in Burton. Daniel Hancox, Business Support Manager at Russell Roof
Tiles, said: “This new equipment replaces two older machines and will enable us to increase overall production output by around
30%. More high-tech equipment also allows us to continue to be more energy efficient. Over the past five years, we have invested
significantly in manufacturing processes to increase efficiencies and reduce our environmental impact.” www.russellrooftiles.com
SEPTEMBER 2020 TC 45
New Roofing products Updates
For further updates visit www.total-contractor.co.uk
CLIENT CONFIDENCE IS KEY
Langley Waterproofing Systems has explained why it turned to the British Board of Agrément for independent
testing and certification of its Paracoat Cold Polyurea Liquid Balcony and Walkway System.
Langley continues to demonstrate the importance of an independently certified system approach to construction,
contributing to client confidence and the confirmation of key data, including performance of 25 years+, as delivered by
Daren and the Langley team with the BBA team.
independent BBA Certification. Daren Fraser, Langley’s Head of Technical, explained further: “We have a long-standing relationship with the BBA to facilitate testing of
our products and systems, the integrity of which is paramount to us. BBA Certification provides our customers with confidence that our systems are suitably
compliant with current UK Building Regulations and consistently and reliably offers robust, compliant, independent assurance. We benefitted from the thorough and
reliable attention from the BBA’s Dr Mike Wiseman and a team of Project Managers, with collaborative, hands-on involvement from contract assessment stage
through to product assessment.” added Daren.
“On behalf of my team and I, it has been a pleasure to work with Daren and his colleagues at Langley Waterproofing Systems,” said Dr Wiseman, BBA Team
Manager – Construction Products. “We independently assessed and certified that Paracoat Cold Polyurea Liquid Balcony and Walkway System was fit for purpose on
new or existing flat or pitched roofs with limited access and for waterproofing balconies, terraces and podiums.” www.bbacerts.co.uk / www.langley.co.uk
MORE THAN JUST STANDARD...
Rainclear Systems says it can work with Hargreaves, a working foundry with its own pattern
making shop and dedicated design team, on your behalf to produce non-standard cast iron
rainwater components to replicate existing perished components and replace like-for-like.
Rainclear Systems has a strong relationship with
Hargreaves, a working foundry, so can help with all your
non-standard rainwater requirements.
Rainclear says heritage properties often contain atypical building shapes and designs, so if your
project has non-standard specifications, it can help source and supply guttering with non-standard
angles or special configurations, and through its relationship with Hargreaves, meet all your nonstandard
rainwater requirements. www.rainclear.co.uk
LIQUITOP FOR REFURBISHMENTS
Bauder says it has launched a cold applied moisture-triggered polyurethane (PU) liquid
waterproofing specifically for use on projects that require a value for money solution with a
comprehensive guarantee.
The Bauder LiquiTop PU system is BBA certified, and is suitable to install on a wide variety of
substrates, providing flexibility for complex roof areas, whilst maintaining manageable costs and
quick installation times. The system has an option for a two coat or three coat solution to match
clients’ expectations for durability, lifespan, and guarantee duration. Importantly, Bauder says the
system has been tested and meets current fire regulations.
Above: The Bauder LiquiTop PU system.
Mike Bradbury, Product Manager for cold liquid applied systems at Bauder, said: “This is a terrific
flat roof waterproofing system that has many benefits for roofing contractors, installers and clients.
The Bauder LiquiTOP System is quick to install, forms a monolithic membrane that contours to
detailing and the roof shape, making it ideal when a roof area presents challenging elements. On
refurbishment projects where the current roof is sound and does not require stripping, minimal
waste is generated as overlaying is a solution making it ideal for when the project requires a rapid
turnaround with minimal disruption to the occupants. Roofing contractors will be interested to know
that an unopened LiquiTOP PU product retains its optimum usability over its whole shelf life and
does not thicken in the tin over a few months.” www.bauder.co.uk
46 TC SEPTEMBER 2020
X-TWO from
VELUX Commercial Xtralite
X-TWO sets a new standard in PVCu rooflights, featuring innovative interlocking and interchangeable kerbs that can be raised
or lowered to any depth. The unique construction used on X-TWO offers a flexible solution with a host of Xtra benefits:
Triple glazed with U d
value of 1.6 W/M2.K
Reduced risk of cold bridging & condensation
Unique mounting systems for easier attachment and installation
Up to 40% more light transmission with vertical kerb option
Increased ventilation levels
Easy opening and ventilation control
Available in either polycarbonate or glass
Four glazing colour options available
Enhanced security options
20 year insurance backed guarantee
X-TWO is offered as a bespoke construction product with a wide range of shapes and sizes
available in manual or electrically operated systems.
Get in touch for a fully comprehensive
site survey & technical advice.
Call us on 01670 354 157 or visit xtralite.co.uk
Project Focus
THE SWEET SCIENCE WITH PROTEUS
Total Contractor hears about the use of Proteus’ systems at the Institute of Physics in London.
The first ever public building for the Institute
of Physics (IOP) has become the latest
development in London to feature a
combination of eye-catching cladding panels
from Proteus Facades.
The IOP was looking to relocate from Portland
Place and open a new public institute to house
the organisation’s membership activities, support
its ambition to engage different communities, and
make physics more accessible to a wider
audience.
Based in ‘the Knowledge Quarter’, part of a 19th
century Keystone conservation area in Kings
Cross, the new headquarters provides education
and exhibition facilities alongside a combination
of office and public space with a basement
auditorium and exhibition gallery, which are both
open to the public.
Located at the junction of Caledonian Road and
Balfe Street, the new IOP building replaces
vacant shops that were in desperate need of
regeneration. Architects TateHindle recognised
this as the ideal space for the new headquarters
and created a design that is both state-of-the art,
but respectful to the historical character of the
neighbourhood.
As conservation was key in this project, two main
external brick facades on the original structure
were retained, with an entrance bay inserted to
create a visual slot through to the completely
refurbished interior. In addition, the 5-storey
development features floor-to-ceiling windows
along Caledonian Road which also acts as a
‘shopfront’ and provides views of the exposed
concrete walls within.
TateHindle added a one-and-a-half-storey
extension to the original structure, which houses
a corporate meeting space for hire. Clad in solid
Proteus HR 1.0mm VM Zinc panels with a
Installed by Longworth Building Solutions, Proteus HR was specified for the Institute of Physics project in London.
Pigmento Blue finish, the façade remains in
keeping with the uniformity of shopfronts on
Caledonian Road; whilst perfectly complementing
the brick and glass exterior on the lower levels
and concrete interior.
Optically flat aesthetic
Installed by Longworth Building Solutions, Proteus
HR was specified because it is a lightweight,
strong and versatile system that creates an
optically flat aesthetic. The integrated modular
rainscreen panels feature an aluminium
honeycomb core, structurally bonded between
two thin gauges of lightweight metal skin to
create an optically flat panel.
Each panel is supported by the Proteus
aluminium carrier system and ancillary
components anchored to a cantilever steel frame
from the underlying masonry structure. These
allowed the panels to be hooked-on from behind,
accentuating the sheer, smooth façade interrupted
only by strips of lighter cladding built into the
design to compartmentalise the flat elevations.
A distinctive and punctuating feature of this
upper storey façade is a series of state-of-the-art
ventilation stacks, also clad in a combination of
solid and perforated single skin Pigmento Blue
Proteus HR Zinc panels, with built-in aluminium
stiffening frames.
The stacks, which replace the original chimneys,
are designed to draw in cold air at roof level and
deliver it through floor-level grilles, using physics
to reduce the carbon footprint of the building. A
vertical column marking the main entrance to the
building and a third floor façade facing onto
Caledonian Road also feature Proteus HR VM
Zinc.
Taking the architect’s design from the outside in,
Proteus SC perforated panels in 2mm aluminium
with an RAL 7031 finish feature internally, with
20mm diameter holes carefully placed in an
offset triangular pattern, to match those featured
on the ventilation stacks.
Proteus SC is an engineered panel system that is
offered in either solid, perforated or mesh panel
formats. By utilising an extensive range of
metals, colours, textures and forms it can add
another dimension to any façade cladding project.
The system can be manufactured in a variety of
metals and from 1mm to 6mm in thickness. For
internal applications, like the IOP, Proteus
Facades provides contrasting fabric inserts and
an acoustic insulation layer can be encapsulated
within the perforated panels.
With a striking design that flows throughout the
building, TateHindle, alongside main contractor
Murphy Group and Proteus Facades, have
together created an outward-looking and
contemporary building; perfectly answering the
client’s brief for a space that makes physics
accessible and embodies how it is woven into our
everyday lives.
Contact Proteus Facades
0151 545 5075
www.proteusfacades.com
48 TC SEPTEMBER 2020
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Join the Experts ...
TECHNICAL GUIDANCE
Gain Access to:
· Technical committee that keeps abreast and
influences legislation effecting the industry
· Private members area with market size data,
CPA updates and industry reports
· Network with suppliers to the industry to aid
product development
· Free guidance notes and codes of practice
· Free independent technical advice
For more information please contact us:
Email: info@lrwa.org.uk
www.lrwa.org.uk
SEPTEMBER 2020 TC 49
Updates
VIVALDA’S LOCKDOWN VIDEO SERIES
Vivalda’s ‘Life After Lockdown’ series gives an interesting insight into the cladding sector.
Vivalda Group has released a series of five
short videos which provide a snapshot of
the industry in the wake of the Covid-19
outbreak.
Comprising ‘talking heads’ style comment from
managers based in Dublin, Glasgow, Manchester,
London and Birmingham, the films provide a timely
insight into the impact the virus has had on the
construction sector.
Bucking the trend seen in many other sectors of
construction, all Vivalda branches reported a
significant uplift in sales of high performance
cladding as soon as lockdown was lifted. Alan
Reece, Assistant Manager from Vivalda
Manchester, said: “Demand has gone up
considerably. In July we saw output rise by around
40% compared to the same time last year.”
Andy Thomas, Branch Manager in
London, said: “Things have been
different since lockdown. We’ve
seen a real boom in smaller
domestic projects, which has
probably been driven by people with
more time on their hands. While we
undertake major commercial work, these home
improvement projects are sometimes more
interesting. It’s opened up a new revenue stream
for us.”
While work in Scotland was slower to restart, due
to different rules north of the border, MSP (which
Vivalda Group acquired last year) is now back up
to full speed. Gillian Thomson, Branch Manager,
said: “We’re doing a lot of projects in England to
replace unsafe ACM with our non-combustible A1
panels. Looking ahead, while we’re delighted that
the government has provided £1.6bn
funding to replace faulty cladding,
the problem lies with who does the
work. There are lots of people that
could do the work, but there are
only a few real experts with a proven
track record. We need to be careful to
ensure the right people are doing this vital work.”
The video series also contains a selection of
recent projects each Vivalda branch has
completed, which demonstrates the sheer
versatility of innovative cladding as well as the
value of the more consultative approach provided
by the business.
View the videos on Roof-Tube
https://roof-tube.co.uk
www.vivalda.co.uk
BRICK SLIPS FIT WELL FOR TOYBOX
A combination of external wall insulation and brick
slips from Sto were specified for a major new
landmark building in Birmingham. The StoTherm
Mineral K insulation system and StoBrick were
chosen for the city’s new Toybox student
accommodation building for their ability to
combine outstanding thermal performance with a
traditional brick appearance, and blend with other
construction materials.
“We wanted to create a visually striking appearance
that would give this new building a unique identity
within the area,” explained Tony Mead of project
architects Corstorphine + Wright. “In order to
achieve that, and also provide a high level of
thermal insulation, we worked with Sto to specify a
combination of Sto thermal insulation, and different
types and colours of Sto brick slips. Combined with
the glazing and the external zinc panels this gave us
lots of flexibility to translate our designs into reality.”
The StoTherm Mineral K insulation
system uses mineral fibre boards
which were adhesively fixed to the
substrate. This allowed for fast and
easy installation, and the
accommodation of the curved
surfaces found on the building’s
façade. The system provides a high
level of thermal performance,
outstanding fire protection and effective sound
insulation. Its single-leaf external construction also
does not reduce the interior space of the building.
To create the impressive ‘shark fin’ appearance for
the completed building and extend the range of
surface textures used, Corstorphine + Wright
specified glazed ceramic StoBrick slips, in a
contrasting green colour to the grey Sto resin brick
slips used on other areas of the façade.
StoBrick has been developed as a brick cladding
solution for use with mineral-fibre
based insulation systems, to provide
architects with the opportunity to
incorporate genuine clay brick
finishes into their façade designs,
whilst also achieving the required
A2-s1, d0 fire rating.
“The slips themselves are extremely lightweight and
are bonded directly onto the substrate, opening up
the range of design options for recreating the
appearance of traditional brickwork in architectural
designs,” commented Graham Chadwick of Craft
Interior who installed the Sto materials.
Contact Sto
www.sto.com
Left: A combination of StoTherm Mineral K
external wall insulation system and
StoBrick brick slips were specified for the
new Toybox student accommodation
building in Birmingham. Image: Tom Bird.
50 TC SEPTEMBER 2020
Promoting
systems-based
solutions
www.mcrma.co.uk
For metal-based roofing and
cladding systems, products and services.
Representing, Promoting
and Supporting
• Systems manufacturers
• Component manufacturers
• Systems installers
• Independent roofing and cladding inspectors
• Industry support services providers
Visit www.mcrma.co.uk
to find out more about the MCRMA and its members.
The ‘MCRMA The Building Envelope Authority’ is a registered Collective Trademark of the Metal Cladding and Roofing Manufacturers Association Limited.
ETICS and Fixings
NEVER COMPROMISE PERFORMANCE
The experts at EJOT discuss best practice guidance for attaching to externally insulated
walls without compromising performance.
Meeting the goal of achieving ‘net zero’
greenhouse gases by 2050 will require
significant upgrading to the external
envelope of many of the UK’s existing buildings.
One of the most effective ways to do this is by
using external wall insulation (EWI) systems –
also known as external thermally insulating
composite systems (ETICS) – which have
become a popular refurbishment solution over the
past two decades.
While the Decent Homes Standard, published in
2000, was the catalyst for greater use of EWI,
modern methods of construction (MMC) have
additionally opened up new possibilities for these
systems in the delivery of new build projects too
where a client is seeking to optimise
sustainability, speed and convenience in
combination with high thermal standards.
Retrofit presents the major opportunity for EWI,
however, with the UK’s existing housing stock
regarded as being amongst the oldest in the
world. That is why PAS 2035: 2019 is so
important, providing a specification for the energy
retrofit of domestic buildings and detailing best
practice, which TrustMark holders will be required
to comply with.
PAS 2035 supports the drive to improve energy
efficiency and the Near Zero Energy Buildings
(NZEBs) target in-line with EU objectives by
championing technically sound and responsible
domestic retrofit work. Key to this is the improved
functionality and durability of buildings, as well
as improved energy efficiency, reduced
environmental impacts of buildings, and
minimising the performance gap that often occurs
with regard to a shortfall of perceived
improvements.
But in order to ensure that an EWI or ETICS
“It is important
that careful
consideration
is given to the
way external
elements are
attached”
system delivers on its intended performance level
and that it maintains its long-term integrity, it is
important that careful consideration is given to
the way external elements are attached. If not,
something as simple as attaching a downpipe
bracket has the potential to lead to much more
significant and costly problems with the EWI
installation.
Consider the make-up of an EWI system. In
simple terms, the insulation is typically attached
securely to the wall structure, treated with
coatings and mesh, and finished in the chosen
render, brick-slips or other external treatment.
The main depth of the EWI system is the
insulation board, and whilst this should generally
be very securely fixed to the building substrate, it
will not have the necessary structural strength to
allow for load bearing attachments, such as Juliet
balconies, canopies or railings.
Also remember that any attempt to achieve a
secure fix by driving through to the original
building substrate could compromise the thermal
insulation level. Unless a fixing is used that
incorporates insulating materials as part of its
design, the thermal barrier will be broken, and
cold bridging will result. This is one of the criteria
of PAS 2035, where it needs to be demonstrated
that any cold bridging effects have been designed
out of the chosen energy efficiency measure, in
particular EWI.
Left: Iso-Dart anchors securely into
substrates and accepts screws upto
9.0 mm diameter
As the number of UK
homes and buildings
treated with EWI or ETICS
increases – retrofit or new
build – it is inevitable that
more incidences will be faced
where a load-bearing element will need
to be attached in what will still be, for many – for
now at least, a non-standard wall construction.
That’s why it is important to understand the
different types of anchors that must be used.
Plan ahead where possible
Where a medium to heavy element will feature as
part of the newly insulated façade, it is important
to plan for the location of the attachment as the
EWI is constructed so a secure fix can be
achieved. For example, when planning for a
window which has a Juliet balcony, an installation
angle or corner bracket, such as EJOT’S ETAapproved
Iso-Corner, can be used to allow for a
secure attachment back to the original building
substrate.
Made from polyurethane hard foam, the
installation angle provides a clear and
dependable location for a load-bearing
attachment to be made, whilst at the same
time preventing thermal bridging. In the case of
the EJOT product, a cantilever arm with a length
of between 80mm and 300mm ensures any EWI
system depth can be accommodated. A similar
principle can be used where a sub-assembly,
compression backing or pressure pad is
required, by ensuring that an insulating
material such as EJOT’s Iso-Bloc is attached to
the building substrate as part of the EWI makeup.
52 TC SEPTEMBER 2020
…and choose the right approach for
fitting unplanned lighter elements
Whilst planning for heavier elements is not only
good practice but crucial, it is simply not possible
to predict the fixing locations of every external
element. That is why there are other very effective
approaches which are equally uncompromising
and secure for lighter weight elements, such as
downpipe brackets, house numbers, letterboxes
and exterior lights.
For fixing points up to a 5kg load in walls
insulated with foam-type insulation such as
polystyrene or polyurethane, one way to provide a
secure fixing location is to use a spiral-shaped
plastic assembly anchor, complete with sealing
washer and integrated threaded sleeve (finished
with silicone sealant). The design of this, as with
EJOT’s Iso-Spiral anchor, is such that it embeds
very securely because of its design into the
insulation without creating a cold bridge.
Light-to-medium weight mounted elements – up
to 15kg per fixing point – will, however, still need
Above: The engineered quality of Iso-Corner is now rubberstamped
with an ETA.
securing to the building substrate. This can be
achieved with a longer fixing comprising a plastic
bush, EPDM washer and a façade anchor. Within
the EJOT range this is known as the Iso-Dart (see
opposite page), and it is a type of fixing that can
be used in EWI applications with an insulation
thickness of up to 320mm.
Installation is straightforward, with the concrete,
brick or block substrate drilled firstly to allow for
the anchor to be inserted, after which the plastic
bush and seal are attached, silicone sealant is
applied, and then external elements can be
attached. The length of the fixing and the fact that
its design incorporates plastic and EPDM
components not only delivers a secure fix into the
original substrate, but it also minimises thermal
transmission as a result of thermal decoupling.
Don’t take a risk – seek specialist advice
The potential that EWI and ETICS offer for
enhancing the energy performance of UK
properties is huge, but it is vital that we don’t
allow compromising factors like the attachment
of external elements to undermine the goals of
clients, architects and system providers. That’s
why innovative fixing solutions like those in the
EJOT ETICS range are so important, meaning that
installers can achieve the right result every time,
whether it is a medium-heavy or lightweight
element to be mounted onto the façade.
Accessing the right support in this area is easy, with
plenty of help available online in the form of
technical brochures, datasheets, video installation
clips and more, as well as directly from EJOT.
Contact EJOT
www.ejot.co.uk
@EJOTUK_Building
HERE TO HELP
WHEN YOU NEED US
SPRA membership – A close community of
businesses working together to
EDUCATE, INFLUENCE and SUPPORT
a quality single ply roofing industry
In these difficult times we want to highlight the very
good support services offered by:
www.buildingmentalhealth.net
www.matesinmind.org
For more information 0845 1547188 enquiries@spra.co.uk
JOIN AND HELP SHAPE THE FUTURE OF SINGLE PLY ROOFING
www.spra.co.uk
#VoiceofSinglePlyRoofing
SEPTEMBER 2020 TC 53
Acoustic Considerations
NO NOISE IS GOOD NEWS...
Simon Blackham, Technical Manager at Recticel Insulation, looks at how insulation can
help improve a home’s acoustics and increase occupant interior comfort and wellbeing.
The UK housing crisis has put a premium on
suitable development sites. This is likely to
result in people living in properties
constructed ever-closer together, as builders look
to optimise available plot space. Compact
housing schemes serve a practical purpose as
enablers for local authorities to fulfil building
quotas and would-be homeowners to climb the
property ladder. However, noise pollution in closeknit
urban areas is a growing issue. Disturbance
from road and air traffic is being supplemented
by neighbour disruption, leading to stress and
disharmony all-round.
There is no doubt that building design,
particularly in relation to largescale
developments, is increasingly being influenced by
the need to minimise a property’s footprint.
Space-saving measures include applying fewer
materials to walls, floors and roofs,
which although may
prove cost-effective in
the short-term, occupiers
risk paying a price in terms of noise
pollution.
Sound interference isn’t limited to that generated
by road traffic and neighbouring households. If
not insulated sufficiently, individual living space
can become intolerable due to unfiltered noise
emanating from different rooms of the same
house.
Noise impacts
Although an invisible menace, persistent
exposure to invasive noise can have serious
consequences. According to a European
Environment Agency (EEA) report, one in five
people in Europe are subjected to levels of sound
considered harmful to health. It estimates that
long-term exposure to noise such as busy traffic,
railways and aircraft causes 12,000 premature
deaths per year in Europe alone.
Mental health and wellbeing are
also found to be negatively
impacted by ‘environmental
turbulence’, whilst the Oxford
University reported a
correlation between increased
levels of traffic noise over long
periods of time and obesity.
Sound solution
Having highlighted the real issues noise pollution
presents, how can householders protect
themselves against its unabating interference?
And if we want to enjoy our music or TV as loud
as we can stand, how is this possible without
upsetting the neighbours or other members of the
household? Insulation presents a viable and
trusted solution to this common domestic
conundrum. A proven example being Silentwall
acoustic insulation panels
produced by
Recticel Insulation
(left), which are
designed to prevent exterior
noise infiltrating a building, whilst providing a
barrier to sound transmitting between rooms
within the property.
Comprising of a combination of fibres and
recycled polyurethane foam, Silentwall panels
provide an 87% sound reduction between walls;
a truly stunning performance which does much to
increase the comfort and wellbeing of occupants
closeted from incessant, everyday noise pollution.
Silentwall’s popularity isn’t solely based upon its
sustainably-inspired composition which results in
a slightly thinner, but much better-performing
wall from an acoustic point of view; its simple
installation is another major benefit. It is easily
bonded to a wall’s surface, with plasterboard
Left: Simon Blackham, Recticel Insulation.
Below: Silentwall acoustic insulation panels.
fitted on top to provide a
finished surface.
The bonding process is crucial
to acoustic performance, as it
eliminates vibration between the
two surfaces and dampens
excessive sound transmission. Silentwall
offers a cleaner, easy-to-apply, reliable
alternative to more traditional acoustic solutions
such as mineral wool, which would need to be
applied with significantly greater density in order
to attain a similar level of noise reduction.
Future innovation
Silentwall is a signifier of Recticel’s commitment
to the circular, sustainable economy. It’s on a
second lifespan and our technicians will already
be looking at ways to adapt upon its current
purpose. In terms of what lies ahead for the
development of acoustic insulation, its wider use
within retrofit applications will likely depend on
the adoption of thermal technology as part of its
package. This ‘best of both worlds’ approach
would seem the most logical progression. With
communities continuing to live evermore tightly
together, a sustainable insulation solution which
offers acoustic and thermal performance will be
crucial to creating a harmonious environment
inside and outside of the home.
Homeowners in large communities shouldn’t feel
entitled to live in a noiseless vacuum, but relative
peace and quiet ought not to be too much to ask
for either. Choosing quality acoustic insulation is
a first step to creating an effective sound barrier.
Contact Recticel Insulation
01782 590470
www.recticelinsulation.com
@RecticelInsulUK
54 TC SEPTEMBER 2020
(QUITE INTERESTING)
INSULATION FACTS
By QI (Quantum Insulation Ltd)
Is non-combustible insulation required over
Compartment walls?
Approved
Document B Regulation 7
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a statement that
carried over the wall’ ,
Approved Document B it will
SEPTEMBER 2020 TC 55
Regulations
ENERGY EFFICIENCY & NEW BUILDS
The experts at A Proctor Group ask ‘does energy efficiency only matter for new build
properties?’
Clearly regulations for energy efficiency
relate to both new build and
refurbishment, but should they not allow a
relaxation in refurbishment that takes into
account the difficulties of meeting this level due
to aspects such as floor zones etc? Regulations
for acoustics take into account new build
properties and the difficulties of existing
buildings, so why don’t we for energy efficiency?
When we get to the ‘other side’ of Coronavirus,
the way we come out will be different; we will
unlikely go back to the ‘old norm’. The effect of
Coronavirus will have rebooted the way we think
about various things such as, what’s important in
life, appreciation of what we have, and the effects
of climate change.
So, is it time for the government to look at the
existing housing stock and assess how their
efficiency can be improved? – the same way as Part
E and Section 5 recognise, instead of hammering
the easy target of new build properties where the
targets set provide the new minimum requirement
to design down to as cheaply as possible, rather
than a worse case minimum.
As stated, Part E and section 5, acoustic regulations
are considerate of the difficulties of trying to design
existing buildings with its existing issues to the
same performance levels of new builds built from
scratch. With acoustics, even in refurbishment the
acoustic measures will invariably be better than
before, but with thermal improvements there could
be knock-on effects such as structural damage due
to hidden moisture issues from trying to improve the
building’s energy performance. Therefore, a good
understanding of HAMM (Heat, Air and Moisture
Movement) are critical to get the balance of
improved energy efficiency with moisture issues.
The government aims to reduce green house gas
emissions by 80% by 2050 and this requires a
change of emphasis which goes
away from just new build to
looking at existing housing stock.
This would provide not just reduced
emissions, but potentially less burden on
the NHS and lower living costs to heat homes. We
must be considerate of what the placement of
insulation would have in old homes – one issue
being solid wall homes.
A good option
Solid walls have been a good choice through the
years for a country that lives in a climate where
there is a lot of rain. These walls can be built
thicker, depending on their exposure to rain to
reduce the amount of water penetrating the external
wall. These walls were traditionally built of stone
work in such a way that they also “breathed”,
thereby drying the walls when the climate allowed
which can be effective but not efficient thermally.
According to NIA, the current housing stock in the
UK stands at 24.5 million dwellings. Of these, 6.6
million properties have solid walls which represent
31% of the total housing stock; 48% of the 326,000
high rise flats in England have solid walls. These
solid walls are deemed hard to treat as they cannot
benefit from the easier energy efficient method of
cavity fill. They can only be treated internally with
internal wall insulation (IWI) or with external wall
insulation (EWI). Both of these options come with
the benefit of potentially improving the insulation
levels in the dwellings but with more difficulties,
especially with internally applied insulation.
With IWI, more does not always mean better and
there is a real case for balancing energy efficiency
with good moisture control and understanding. In its
most simplistic form, more insulation (thicker) will
come at the expense of space internally, in some
cases making double bedrooms into singles and
singles into box rooms. So we strive for more energy
Left: Spacetherm from A Proctor.
efficient insulation to reduce the
thickness required which can be an efficient
option, but this can compromise the vapour
permeability of the wall and reduce its
“breathability”. In most cases, the strive for more
efficient thermal insulation at a lower thickness
needs to compromise the vapour permeability and
the constant balancing of these factors becomes an
ever-increasing conundrum – until recently.
Now you can balance improving the thermal
efficiency, decrease water absorption and maintain
the intended breathability with the introduction of
nano technology called Spacetherm insulation. Our
Spacetherm insulation gives high levels of thermal
insulation with a low thermal conductivity of 0.019
W/mK while still offering breathability and
exceptional levels of water repellence. Solid wall
properties can be transformed with thin insulation
in terms of green house gas emissions, yet without
a vast reduction in room size.
The Spacetherm WL board comes in just 13mm
thickness including the 3mm MgO hard wearing
surface which is adhesively bonded to the wall. This
can reduce a solid wall U-value from 1.5 W/m²K
(and in some cases 2.1 W/m²K) to below 0.7
W/m²K. This is halving the heat loss through a solid
wall at around half an inch thick! If the government
was to relax the conversion levels to this level, then
nearly a third of the UK’s existing housing stock can
reduce its heat loss dramatically without major
disruption to properties, whilst still maintaining
the structural integrity due to the breathing wall
and less risk of built-in moisture issues from vast
changes in a structure’s temperature, and
therefore in-built condensation problems.
Contact A Proctor Group
www.proctorgroup.com
@proctorgroup
56 TC SEPTEMBER 2020
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Insulation Updates
ROCKWOOL’S RED BOOK’S BACK
As part of continued investment in tools which
help to save specifiers’ time and make it easier
to identify the correct insulation solutions for
facades, walls, floors and roofs, ROCKWOOL has
launched the new Red Book – a fully interactive
guide which provides digital access to technical
data, product certification and a wide range of
specification support materials.
Always well regarded by specifiers, the
ROCKWOOL Red Book has been out of print for
several years. Now back and digitally revamped
to meet the needs of building professionals, the
Red Book provides an essential and practical
resource that brings all the relevant specification
data for ROCKWOOL acoustic, fire and thermal
solutions, into a single place.
Application-driven, the Red Book provides detailed
guidance for designing ROCKWOOL stone wool
insulation into façade, wall, floor and roof buildups.
This includes NBS Clauses, BIM objects, BBA
certification and technical datasheets.
A Victorian vicarage which has been
converted into flats for homeless people in
Kent has achieved an astonishing band B
EPC rating – up from Band E – thanks to its
use of Actis Hybrid insulation.
The builders and project surveyor are
delighted, but not surprised, that the
refurbished building is so energy efficient.
The property, Christchurch Lodge, bought and
refurbished by Ashford Borough Council as a
more stable and cost-effective alternative to
B&B accommodation for those without a roof
over the heads, opens to its first residents this
month. The choice of Actis Hybrid was made by
the council’s development surveyor, Darren
Parrett, who was struck by the ability of the
products to reduce thermal bridging when he
took part in an Actis CPD training session a few
Recognising the
importance of being
able to find a
product’s reaction to
fire ratings, users can
verify the Euroclass
rating of a product as
the Red Book links
directly to the
Declaration of Performance database on the
ROCKWOOL website. This enables the specifier to
quickly evidence the non-combustibility of their
chosen ROCKWOOL solution, whilst seeing other
key performance characteristics that are
declared as part of the product’s CE marking.
In addition to technical documentation,
application pages give specifiers direct access to
online calculation tools for U-values and
acoustics, making it easier to evaluate the
potential performance of façade, wall, floor and
roof build-ups.
years ago.
For further info on these updates and more, visit www.total-contractor.co.uk
“This is a significant achievement in
building energy performance, made
all the more remarkable given the
physical limitations of an existing
19th century building compared to a
blank canvas design of a new-build
scheme,” said Darren.
Contractors Jenner created an
internal stud wall inside the original
brick, filling it with 125mm honeycomb
insulation Actis Hybris, and then adding
insulating vapour control layer H Control Hybrid
to eliminate thermal bridging – something with
which the construction team were particularly
pleased.
Hybris and H Control Hybrid were also used in
Paul Barrett, Head of
Product Management,
ROCKWOOL,
commented: “Since
we last produced the
Red Book, the world
has become much
more of a digital
place. We’ve
responded to this by creating a specification
support tool that makes all the relevant online
and electronic resources directly accessible from
within the Red Book. Our objective was to create
a practical guide that is easy to use, helping to
save time while maintaining the robustness of
the specification process. We believe we’ve
achieved this and will be regularly releasing new
updates to ensure the content remains relevant
and accurate, as well as evolving it in line with
market feedback.”
To download a copy of the ROCKWOOL Red Book,
please visit www.rockwool.co.uk/redbook.
ACTIS HYBRID HELPS BOOST EPC RATING FROM E TO B
Liane Bayliss, Actis South
East and London Area Sales
Manager with Darren Parrett,
the council’s development
surveyor.
the roof, with Hybris on its own in
the ceilings. As well as noting
that the building feels very warm
and cosy in colder weather,
Darren also observed how cool it
had been during the recent
heatwave. The contractors said
the products were very quick and
easy to install – a comment
frequently heard by the Actis
team! Actis’ Liane Bayliss said:
“Darren was absolutely delighted to have
achieved such an impressive EPC. It confirmed
in real life what he’d learned on our CPD
training course a few years ago. It was also
good to hear that Jenner, the contractors,
found it so easy to use. SO many builders tell
us this.”
www.insulation-actis.com
58 TC SEPTEMBER 2020
Article
Cutting Blades
MAKING THE CUT: FINDING THE
RIGHT BLADE FOR THE JOB
Dominic Waring, Technical Sales Manager at Norton Clipper, Saint-Gobain Abrasives,
explains how you can ensure you’re using the best diamond blade or cutting disc for a job.
Using the wrong type of diamond blade or
cutting disc can lead to inadequate
results and damaged products, while also
wasting a contractor’s time and resources. But
with so many different types of abrasives on the
market, finding the right one can be a minefield.
At Norton Clipper, our absolute top advice for any
contractor working with cutting equipment is:
don’t be afraid to ask. There can be endless
variables that determine what type of product is
ideally suited for certain applications, so if you’re
ever unsure, it’s always best to ask those in the
know. Your local builders’ merchants will always
be happy to lend a hand, but don’t forget to also
check a manufacturer’s website, as there will
often be pages of information on which blade is
best for which job, and may even feature product
guides or demo videos.
Instead of looking towards the cheapest option or
using the same product for every job, first ask
yourself some questions: what quantity do I need
to cut?; what materials will I be cutting?; and
what tools will I use to cut it with? – the answers
will help you determine which size and type of
product you need, and whether you need a cutting
disc or a diamond blade.
A cutting disc is a lightweight and cheap cutting
option that delivers a decent cut for smaller
projects. These discs are thinner and less durable
than their diamond blade counterparts, meaning
they can wear out fairly quickly. When looking to
make lots of cuts, or when working on tough
materials, this often means using up numerous
cutting discs. Fitting and removing the worn down
discs may only take a couple of minutes each, but
can quickly add up to hours of lost time on site –
proving a less cost effective option for those
bigger projects.
This being said, the cost and
ease of use of cutting discs
make them a great option
when cutting just a couple of
roof tiles. As they are
lightweight, these discs also
make a good accompaniment for
cordless power tools, using less power to start
up and saving on battery life.
“For roof tiles we would
recommend a
continuous rim, which
offers a smoother cut
with a reduced risk of
chipping”
For many contractors though, jobs require the
faster and longer-lasting performance found in
diamond blades. These blades offer a more
comfortable and safer cut for the user as
vibration is reduced, decreasing the effects of
fatigue and the chances of getting white finger.
But the main attraction to diamond blades is, of
course, their unrivalled ability to work longer,
faster, and achieve a better finish – helping to
save both time and money on a job.
Two main types of diamond blade
What many tradespeople aren’t aware of,
however, is the extensive variety of diamond
blades. There are two main types of diamond
blades – a segmented rim and a continuous rim.
For roof tiles we would strongly recommend a
continuous rim, which offers a smoother cut with
a reduced risk of chipping – minimising any
worries of wastage or damaged tiles.
Left: Norton Clipper Multipurpose 230mm.
There are diamond blades
available for almost every
material and application, and
using the right one can really
determine a job well done. When
using an incorrect diamond blade, the
tools used have to work harder to achieve
the desired result, whilst the blade can prematurely
wear and no longer cut effectively, and may even
damage the material you are trying to cut.
In general, a multi-material or general buildingmaterial
continuous rim blade is the perfect fit for
roof tiles, and will help achieve smooth cuts time
after time. Whether you opt for cutting discs,
diamond blades or a combination of the two, it is
always advised that you check that they are
suitable for the product you will be cutting.
At Norton Clipper, we’ve worked hard to make it
as easy as possible for contractors to take the
stress out of the selection process. Each type of
Norton Clipper diamond blade is colour coded and
clearly states its application type, meaning
tradespeople can find a suitable product by
simply scanning the shelves, or taking a quick
look at our website beforehand to find out what
they should be looking for.
Above: Colour coding for diamond blades.
Contact Norton Abrasives
01785 279553
www.nortonabrasives.com
60 TC SEPTEMBER 2020
SLATE FOR ROOFING
Comprehensive product range
30 to 75 year market-leading warranties available
Reproduction & Fibre Cement ranges
Tailored ranges in stock in your area
Full support & guidance
Natural Slate Ranges
Excellence
Commercial
Classic
www.sigaslate.co.uk
Article
Vehicle Checks
RUBBER STAMPED: TYRE CHECKLIST
Motoring specialists from LeaseVan.co.uk have revealed three essential tyre checks drivers
should make regularly to stay on the right side of the law, be safe and avoid £2,500 fines
and penalty points…
British drivers have been urged to check
tyre treads, pressure and general wear
and tear in order to avoid hefty £2,500
fines and penalty points.
Motoring specialists from LeaseVan.co.uk have
revealed three essential tyre checks drivers
should make regularly to stay on the right side of
the law, be safe, and avoid unwanted fines.
A recent survey of 2,000 drivers showed a
staggering 17 per cent of motorists had never
checked their tyre pressures.
This is despite the fact that under or over inflated
tyres can cause unpredictable vehicle behaviour
and affect handling and grip, potentially causing
dangerous collisions.
As well as tyre pressure, motorists should check
their vehicle’s tyre depth regularly, and inspect
them for any cuts, bulges, and signs of cracking.
If a driver is stopped by the police and found to
have one or more tyres with a tread depth below
the legal limit, they could receive a hefty fine of
£2,500 and three penalty points per tyre.
So, if it turns out that all four tyres are breaking
the law, drivers could be required to pay £10,000
and risk losing their licence altogether.
A spokesperson for LeaseVan.co.uk said: “Tyres
are arguably one of the most vital components of
any vehicle, and as such they require a
reasonable amount of upkeep.
“Drivers can prioritise their and other road users’
health and safety by regularly checking their tyres
to make sure they’re road legal. Having a
sufficient tyre tread depth is vital to ensure that
your car can grip the road properly, and tyre
pressure can greatly affect the way a vehicle
handles. Incorrectly inflated tyres also waste
money because they can
increase fuel consumption and
tyres will wear out more
quickly. You should also inspect
tyres for cuts, bulges, and signs
of cracking. If you notice anything
unusual, get it looked at by a
professional and replace if needed.”
1. Tread Depth
Tread depth refers to the
measurement between the
top of the tread rubber –
the part of the tyre that
contacts the road – and the
bottom of the tyre’s deep
grooves. Having a sufficient
tread depth is vital to ensure that
your car can grip the road properly. Without
it, you’re increasing your chances of having an
accident. It’s also important to note that if you
are involved in an accident and your car has tyres
with a tread depth below the legal limit, your
insurance claim could be deemed invalid.
In the UK, the law states that every tyre on a car
must have a minimum tread of 1.6mm across the
central three quarters of the tread around the
circumference. If you’re stopped by the police and
found to have one or more with a tread depth
below the legal limit, you could receive a hefty
fine of £2,500 and three penalty points per tyre.
You can use a tread depth gauge to measure it or
use the ‘20p test’. Simply insert a 20p coin into
the grooves of the tyre and check if you can still
see the outer band of the coin. If you can’t, your
tyre is above the legal limit. If you can see the
outer band of the coin, it’s likely the tyre is
unsafe and needs swapping for a newer model.
2. Pressure
Without the correct pressure in
each tyre, you run the risk of
not being in total control of your
vehicle. Under or over inflated
tyres can cause unpredictable
vehicle behaviour and affect
handling and grip. This is especially
dangerous when you’re driving at high
speeds. Incorrectly inflated tyres
also waste money because
they can increase fuel
consumption and tyres will
wear out more quickly.
To find out the correct
pressure for your tyres, you
should refer to your car’s manual.
This should tell you the pounds per
square inch (PSI) in relation to your vehicle’s
tyres – this is the number your tyres should be
inflated to. Checking your tyres’ pressure is quick
and simple, and you can do this by using a digital
tyre pressure gauge. You can pick one of these
devices up from a garage and keep it in your car
or van at home.
3. Wear and tear
To keep your tyres in good condition, you should
get into the habit of inspecting them regularly. If
you notice anything unusual, get it looked at by a
professional and replace if needed. When you’re
checking them over, make sure you look at the
surface of the tyre and use your hand to feel for
anything that might be stuck in the rubber. You
should also inspect them for cuts, bulges, and
signs of cracking.
Contact LeaseVan.co.uk
www.leasevan.co.uk
62 TC SEPTEMBER 2020
Postponed to
Friday 28 May 2021
THE UK ROOFING AWARDS 2020/21
We have postponed the 2020 awards as social distancing guidelines are likely to be in place for at least the
short-to-medium term. The safety of the attendees must come first—so we’re planning a bigger and better
combined 2020/21 roofing awards event in May 2021 and we look forward to seeing you all there.
Friday 28 May 2021 | InterContinental London—The O2
For more details or to book your table, contact 020 7638 7663
or head to roofingawards.co.uk
All tickets already purchased remain valid for 2021. Nominations for awards will reopen later this year.
Drinks Reception
and Category Sponsor
Headline Sponsor
Awards Knowledge Partner
Coronavirus Advice for UK roofing industry
www.nfrc.co.uk/coronavirus
0330 123 4714 coronavirus@nfrc.co.uk
Updates
For further info on all these updates and more, visit www.total-contractor.co.uk
CUTTING EDGE: MITRE SAW STAND
Makita UK has launched a new, lightweight
folding mitre saw stand, making it easier than
ever to quickly and accurately complete a
range of cuttings tasks.
The portable WST07 mitre saw stand has been
designed with ease of use and operator
productivity in mind. Unlike previous models, the
WST07 includes tool-less adjustable mitre saw
bracket levers, so operators can effortlessly
install, adjust and remove the saw from the
stand. The sliding rail design also makes it easy
to position the mitre saw at the desired angle.
With a maximum extension length of 3,830mm
and adjustable extension arms (both left and
right), the WST07 can be easily altered for each
individual task and can support up to 225kg in
weight for cutting efficiency. The WST07 also
includes an adjustable levelling foot, to prevent
the saw stand from wobbling when working on
uneven floor surfaces.
The WST07 is easy to manoeuvre around site and
transport between jobs. Weighing just 18kg, the
inclusion of castors allows operators to
effortlessly move the saw stand, even when a
mitre saw is mounted. The stand has also been
designed for ease of transportation between jobs
with two convenient single-handed carry handles
(one pre-fixed) for maximum carrying comfort.
The WST07’s compact design (it has a minimum
length of just 1,765mm) and folding legs means
that it can be easily loaded onto the bed of a
standard 1,800mm wide pickup truck.
For increased flexibility, the WST07 is compatible
with a wide range of Makita products, including
slide compound saws, mitre saws, cordless slide
compound saws and cordless mitre saws.
Kevin Brannigan, Marketing Manager at Makita,
said: “We are delighted to add the WST07 Mitre
Saw to our ever-growing accessory portfolio. This
fantastic stand provides workers with a valuable
tool for easier material cutting. The light weight
and compact design of the WST07 means that
Above: The portable WST07 mitre saw stand from Makita.
users can quickly put up and take down the saw
stand with minimum disruption – even with the
tool still mounted.”
www.makitauk.com
EMEA RESPONSIBILITY FOR STEVE LOCK
WernerCo’s Director of Product Engineering, Steve Lock, has recently been promoted to take on new
responsibilities for EMEA projects and aligning the European offering.
WernerCo’s Steve Lock has recently
been promoted.
With over 15 years of experience leading multi-disciplined engineering teams to deliver product solutions for customers,
including five years as Technical Director at J.P Hare Ltd, Steve is now responsible for delivering EMEA projects and the
European business, which aligns all major products and utilises the wider company expertise in this field. Steve now also
leads product engineering and development across all UK brands as WernerCo bids farewell to Paul Bruton, who retired
last month after 45 years spent in the ladder industry, following an in-depth transition period. www.wernerco.com
LEG ROOM: MAXIMUM MOVEMENT ON SITE
Hi-tech fabrics and body-mapping designs in the new multi-purpose ALLROUNDWork 4-Way Stretch Trousers
from Snickers Workwear ensure maximum working mobility wherever you are on site.
The 4-way stretch fabrics integrated into these work trousers deliver maximum freedom of movement for all kinds of
work all year round, as well as improved ventilation and overall comfort. With great fit and superb value for money,
they have a slimmer tailored fit for better all-round looks and protection against snagging, plus reinforced stretch
Cordura in the certified KneeGuard System for greater flexibility, comfort and durability. They’re specially designed to
take the new D30 ERGO Craftsman Kneepad. www.snickersworkwear.co.uk
64 TC SEPTEMBER 2020
Updates
For further info on these updates and more, visit www.total-contractor.co.uk
MULTI TALENTED TOOLS
FEIN has simplified its product range, grouping
its multitools together to form one new
MultiMaster family. The MultiMaster 300, 500
and 700 series, formerly known as the
MultiTalent, MultiMaster and SuperCut, will
now form one “unrivalled” family of multitools.
Scheduled to launch this September nationally
across the UK with the aim of streamlining
product lines for end-users and dealers alike, the
range will now encompass the three oscillating
power tools. Each product will also be available
as both cordless and mains-powered options.
“The MultiMaster range provides a one-stopshop
for a breadth of jobs, be it cutting, sawing,
sanding or polishing, due to its incredibly
extensive catalogue of compatible accessories,”
commented Raphael Rudolph, Managing Director
of FEIN UK. “Whether you’re on site for eight
hours a day or completing a quick DIY project,
the three new products offer a range of
performance classes, from entry-level to super
powerful for the most demanding requirements.”
The MultiMaster family is compatible with a total
of 180 accessories, enabling end-users to
complete a range of jobs with just one tool. The
MultiMaster 700 series, formerly known as
SuperCut, has the ability to saw wood, metal and
plastics, while also cutting out tiles, silicone
joints and carpets rapidly to precision, and
removing adhesive residues and tile adhesive.
The 700 series comes in various packages,
including up to 60 accessories, making it ideal
for all levels of the construction process and
everyone from general builders and roofers, to
plumbers, carpenters and electricians.
“Due to its robust design, the MultiMaster 700
can cope with the toughest conditions and is able
to operate with all Starlock accessories,
including Starlock, Starlock Plus and Starlock
Max,” added Raphael.
The MultiMaster 500 series, formerly known as
MultiMaster, can be adapted to complete a range
FEIN’s multitools are now part of the MultiMaster family.
of interior jobs such as sawing wood and metal,
as well as sanding and removing tiles, and is
available with different packages including, the
AMM 500 Plus TOP with more than 30
accessories. Meanwhile, the MultiMaster 300
series, previously known as MultiTalent, is
designed for sawing wood, metal, plasterboard
and plastics and can be purchased with a variety
of basic accessories. Both MultiMaster 300 and
500 series multitools are compatible with
Starlock and Starlock Plus accessories.
As part of the product range expansion, the
company will also be offering up to £100 in
Amazon vouchers to any customers trading in
their old non-Starlock FEIN tools for the new
MultiMaster 300, 500 or 700 series, when they
register for the three-year FEIN Plus warranty.
www.fein.com/en_uk/
A CUT ABOVE: QUICKER & SAFER CUTTING
The team at Guardian Tools have worked closely with roofing contractors to launch the Guardian Roof Tile Jig.
The traditional practice to secure and stabilise any roof tile whilst cutting is to stand on it. However, this brings the foot
closer to the cutting blade and creates significant risk of a serious accident. Once water has been included in the
Above: Guardian’s Roof Tile Jig.
process for suppressing silica dust, the risk is further increased because the operator is cutting whilst trying to follow a quickly disappearing line. Guardian
says the Jig simply replaces the operator’s foot and does not change the process. The tile is aligned on the base of the Jig with a ‘stop’ and held in place by
pushing a clamp down on the top of the tile, and Guardian Tools says this then gives the user an edge to follow and makes the cutting safer, more accurate
and easily repeatable. By using the Jig in the cutting process, not only does the risk of harm substantially reduce, it also saves time and therefore money.
Andy Fitzmaurice, Guardian Tools Director, explained: “For a number of years we have worked across different sectors of construction with Stihl and
their cut-off machines. Through this, we have been able to gain an in-depth understanding of the ways in which cut-off machines can be supported to
improve the key roles they have on a construction site. For roofers, the cut-off machine is a valuable tool, so to help improve its ease of use and its
safety, plus reducing overall cutting time, is a benefit to both the contractor and their client. Even the simple benefit of raising the tile off the scaffold
boards and avoiding the frequent cutting of boards will have a positive impact on site.”
Guardian Tools says the benefit of working with roofing contractors is that they have been able to develop a product that roofers would use and can do
so without expecting them to change the way they work. Jason Wright, MD at J Wright Roofing Ltd., explained: “We have looked at the Jig with different
types of tiles, including ridge tiles. We can see the benefits of the Jig from both the safety and time-saving aspects and are looking to include this
innovative and practical tool with our teams for everyday use.” www.guardiantools.co.uk
66 TC SEPTEMBER 2020
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ROOFERS
THEY CAN
TRUST
Register NOW to start your journey and one of the RoofCERT team will be in
touch to guide you through the process.
Register at www.roofcert.co.uk/tc
• Clear proof of your credentials
• Confidence in your own skills and knowledge
• Ability to easily manage your training
• Stand out from your competitors
• Online and face-to-face assessments available
Interested in finding out more about putting your company’s
operatives through RoofCERT accreditation? Call 020 3940 0053