February 2022

FEBRUARY 2022
>>> APPRENTICESHIP MYTHS • PART L PREPARED? • BONDING GUTTERS • ROOFLIGHTS >>>

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Editor’s Comment
MATT DOWNS
EDITORIAL DIRECTOR
MATTDOWNS@MEDIA-NOW.CO.UK
07963 330774
The NFRC is looking to tackle the skills and recruitment problems
currently impacting the roofing sector with the launch of its new
Roofing Careers Service.
The free, online resource (www.nfrc.co.uk/careers) is targeted at young
people and career-changers, as well as employers, and brings together all
the information, advice, guidance and useful links they will need regarding
careers and opportunities within the roofing sector.
Discussing the new offering, Ruth Scarrott, Head of Careers at NFRC,
explained: “Whilst there are already a plethora of resources on careers in
construction, these are spread across lots of different places, which can
make it confusing for a young person and are often not roofing specific. The
Roofing Careers Service aims to tackle this by putting everything related to
roofing careers in one central place that can be easily accessed.” Find out
more on page 8.
Elsewhere in this issue, Ruth Scarrott also talks apprenticeships and
dispels some of the myths regarding the hurdles to recruiting apprentices
on page 18; Daniel Redfern of Marley talks all things Part L and explains
why roofers mustn’t miss out on the opportunities coming their way (page
24); John Mercer outlines the key considerations and options to consider
when installing bonding gutters on pitched roofs (page 26); whilst Peter
Daniel of the Rooflight Company looks at the logistical challenges of
installing rooflights on page 42.
So read on for all this and so much more!
Matt
Cover courtesy of DMG Academy of Roofing: See page 8 for
info on DMG Academy of Roofing’s new offering, or visit
www.dmgservicesgroup.co.uk to find out more.
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Contents
3 KEY FEATURES
32
24 PART L PREPARED
With the new Part L guidance coming in June,
Daniel Redfern of Marley provides an overview
of what roofing contractors need to know now
so they don’t miss out
26 PERFECTLY PITCHED
John Mercer continues his focus on best
practice when it comes to pitched roofing,
this month addressing the key considerations
and options when constructing bonding gutters
50 THE SUSTAINABLE OPTION
Following the launch of MCRMA’s new
sustainability guidance document, Carlton
Jones discusses the points it addresses and
explains why metal is such a sustainable choice
24
FURTHER READING
16 IT’S AWARDS TIME!
Find out which projects, companies and individuals
have been shortlisted for this year’s LRWA Awards!
22 LIMITED COMBUSTIBILITY
SPRA, LRWA and NFRC are working to produce a
guidance document about the use of limited
combustibility boards on flat roof build-ups
28 SELECT INSTALLERS
Have you got what it takes to be a Cedral Select
Professional? We take a closer look at the
manufacturer’s new installer scheme
32 A HIGH-FLYING ROOF REFURB
Victoria Ramwell of Kemper System talks us through a
challenging roofing project near Manchester Airport
50
40 KNOWLEDGE IS KEY
Following the launch of its online Knowledge Centre,
Cheryl Douglas of Sika discusses the wealth of content
that roofing contractors can access at any time
62 TIPS TO AVOID VAN THEFT
As incidents of van theft grow across the UK, the
experts at comparethemarket.com have outlined five tips
to help you protect your van and its contents
4 TC FEBRUARY 2022

REGULARS
20 NFRC ROOFING FOCUS
Ruth Scarrott, Head of Careers at NFRC, dispels
some of the myths around recruiting apprentices
54 ALL YOU NEED TO KNOW...
About: EPDs and product sustainability. Following
a rise in enquiries on this topic, Rob Firman
of Polyfoam XPS explains all...
56 KNAUF TECHNICAL TALK
Bradley Hirst of Knauf Insulation looks at
U-values in more detail
57 QI BY QI
This month, the experts at Quantum Insulation
provide an update on all things relating to
non-combustible inverted roof insulation
INDUSTRY NEWS
06 GOVE: SECTOR MUST PAY
Michael Gove has called on cladding and insulation
manufacturers to pay for remediation work to buildings
12 BLUE BOOK UPDATED
The latest edition of the key guide for those working on
profiled sheet roofing and cladding projects is available
SECTIONS:
TOTAL
ROOFING
22
TOTAL
CLADDING
46
TOTAL
INSULATION
54
06
VEHICLES, TOOLS
& WORKWEAR
62
FEBRUARY 2022 TC 5

Industry News
More news, updates and interviews at www.total-contractor.co.uk
NEW GUIDANCE
DOCS FROM MCRMA
The Metal Cladding and Roofing
Manufacturers Association (MCRMA)
has published two new guidance
documents – ‘GD36 Cavity barriers for
ventilated rainscreen façades’ and
‘GD39 Sustainability and durability of
metal roofing and cladding systems’.
CLADDING & INSULATION
SECTORS TOLD TO PAY UP
The MCRMA points out cavity fire barriers
are an essential element of fire protection,
and its new guidance document GD36
Cavity barriers for ventilated rainscreen
façades sets out to consider the key
questions about cavity barriers and offers
guidance for their correct specification. The
document explains the difference between
a fire stop and a cavity barrier, examines
the regulations for the various parts of the
UK and gives installation
recommendations.
Its new guidance document GD39
Sustainability and durability of metal
roofing and cladding systems focuses on
sustainability from a ‘fabric first’ approach
where the metal building envelope provides
a long-lasting solution which can be future
proofed for potential changes of use of the
building.
As there is a natural split between
sustainability and durability topics, the
guidance document is published as a suite
of eight standalone sections each of which
covers specific but interrelated subjects,
including sustainability background, zero
avoidable waste, environmental
assessment methods, durability, life
cycle/whole life costing, products and
components.
The documents can be downloaded from
the MCRMA website at www.mcrma.co.uk
In a letter to Peter Caplehorn, CPA Chief
Executive, Michael Gove, Secretary of State for
Levelling Up, Housing and Communities, has
“set out the contribution that cladding and
insulation manufacturers will need to make to
fixing the crisis.”
Gove explained that it was “unjust” for
leaseholders to be left with the bills to remove
cladding from their buildings when “the range of
past practices in the industry – across its
approach to manufacturing, marketing and testing
– has rightly been a source of huge concern to
Parliament and the public.”
He continued: “Without prejudicing the results of
the Grenfell Inquiry, there is no doubt that the
documentary evidence that has been published
relating to the culture and practices of major
cladding and insulation manufacturers has been
extremely alarming.”
Gove pointed out that “there are a number of
cladding and insulation companies whose products
or services have contributed to the need for
remediation of 11m+ buildings on fire safety
grounds,” and noted that “profits made in the four
years after the Grenfell Tower tragedy by just the
UK arms of the three cladding and insulation firms
most closely associated with the refurbishment of
the Grenfell Tower total over £700m.”
Gove continued: “I am offering a window of
opportunity, between now and March, for the
sector to work with my department through open
and transparent negotiations to agree a
settlement that will restore confidence and secure
an appropriate contribution from the sector.
“A new deal must include a clear commitment
from the sector that they agree to make financial
contributions in this year and in subsequent years
as we have already asked developers to do. The
total contribution from the cladding and insulation
sector must represent a significant portion of the
total remediation costs, caused by the dangerous
products sold by some of your members. The
current estimated cost to remediate unsafe
cladding on 11-18m and over 18m buildings is
£4bn and £5.1bn respectively.”
Responding to the letter, the CPA stated: “We
have had the benefit of several meetings with the
Minister’s Residents Voice and the Building
Safety Levy team over the past weeks, that have
helped them understand the complexity of the
issues and market participants involved. That
team has nonetheless made clear the Minister’s
ambitions and has requested our cooperation in
planning a meeting with him and some relevant
construction product manufacturers to discuss
the matter further. We have asked for a separate
meeting to clarify the details behind the
government’s proposals. With all this in mind we
are happy to work with government and our
members in the spirit of cooperation to address
these issues.”
6 TC FEBRUARY 2022

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Industry News
NEW LEAD COURSES
PLANNED FOR DMG
Darren McGhee (centre) at the official opening of the
DMG Academy of Roofing.
The DMG Academy of Roofing, which
recently opened its doors on Strathclyde
Business Park in Bellshill, North
Lanarkshire, is now set to offer Lead
Welding courses alongside its Roof Slating
and Tiling courses.
Founded by Darren McGhee, Managing Director
of DMG Services Group, to provide preapprentice
training for school-leavers, who will
then progress to an apprenticeship with DMG
Services Group alongside training at South
Lanarkshire College, the facility has gone from
strength to strength. Darren explained: “It’s
going great – we’ve had a number of enquiries
and are bringing kids in in small groups so they
don’t get lost in large numbers, and I can keep
an eye on them and see how they develop.”
Looking to expand the Academy’s offering and
use the fantastic facilities to their full potential,
Darren has brought on board Lead Specialist
Craig McCamley, Owner of CJM Leadwork
Specialists, and is working with LSTA to
become a City & Guilds accredited satellite
centre for training in Scotland.
Darren continued: “I want to cover all bases
through the Academy for the individuals and
our company – if we’ve got the Roof Tiling &
Slating, the Lead Courses, my plan is then to
eventually offer Solar PV courses as well, so we
can offer the full pitched roofing package. It’s
good for the apprentices, my team, the
company and the wider industry.” Find out
more about the DMG Academy of Roofing:
www.dmgservicesgroup.co.uk/training/
More news, updates and interviews at www.total-contractor.co.uk
NEW ROOFING CAREERS SERVICE FROM NFRC
NFRC has launched the NFRC
Roofing Careers Service.
This free online resource is said to be
aimed at young people, career
changers and employers, and NFRC
says it was created to help tackle the
chronic skill shortages in the roofing
and cladding industry by placing
roofing careers information, guidance
and links to other useful resources in
one central place.
The NFRC says the new service aims to tackle
skill shortages both by attracting new people into
the sector and helping employers to recruit, and
has been launched following NFRC’s State of the
Roofing Industry Survey for Q3 2021 which found
that over three quarters (77 per cent) of roofing
contractors were experiencing recruitment
difficulties.
The Roofing Careers Service website is completely
free to use and is open to both NFRC members
and non-members alike, as well as young people,
parents, teachers and career-switchers.
The Careers Service is split into the following
categories:
First steps on the ladder (getting in): this is
aimed at young people and their influencers,
providing them with clear careers advice,
encouragement and signposting.
Holding the ladder for others (employer’s
portal): this is aimed at employers to help them
to build their businesses, take on an apprentice or
trainee, and recruit in an inclusive way.
Later in the year, NFRC says two extra sections on
career progression (Climbing the ladder) and
leadership and other professional roles (Rooftops)
will be launched.
The Careers Service website includes real-life
roofing career case studies and job profiles
showing the breadth of roles in roofing from
Above: Ruth Scarrott, Head of
Careers at NFRC.
apprentices, to estimators, to
Managing Directors.
For employers, NFRC says the
website includes many free
resources, including job descriptions,
basic financial planning templates,
advice on employment contracts,
links to grants and funding
opportunities.
On top of the free online portal, NFRC
members also have access to tailored support
and advice on recruitment, employment and
training.
Commenting on the launch of the Roofing Careers
Service, Ruth Scarrott, NFRC Head of Careers,
said: “Our industry has so many great career
opportunities, and we want to showcase this –
that is why we have created a dedicated Roofing
Careers Service. Whilst there are already a
plethora of resources on careers in construction,
these are spread across lots of different places,
which can make it confusing for a young person
and are often not roofing specific. The Roofing
Careers Service aims to tackle this by putting
everything related to roofing careers in one central
place that can be easily accessed. We will be
working with the CITB and other strategic partners
to join the dots for career pathways into our
fantastic industry. Through this collaborative
effort, we hope to attract many more young people
to our sector.”
She concluded: “We know that over three quarters
of roofing contractors are experiencing
recruitment difficulties at this time, and that is
why helping employers is an equally important
part of the Roofing Careers Service. Whether it is
supporting roofing contractors to grow their
business, recruit the best talent, or ensure their
teams are diverse and inclusive, the Roofing
Careers Service is there to help.”
Read more from Ruth on page 20 as she dispels
the key myths concerning recruiting apprentices.
8 TC FEBRUARY 2022

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Galvanised or powder coated finish. Protective mats 5mm
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Industry News
SIG APPOINTS NEW
SALES DIRECTOR
SIG UK has announced the
appointment of Jason
Hemingway as Sales
Director for National
Accounts.
The company says Jason’s return to SIG UK
reflects the organisation’s renewed
commitment to a customer-centric strategy.
With a career spanning 32 years in the
construction industry, SIG UK says Jason is
expertly placed to understand the
requirements of both suppliers and
customers.
SIG UK says Jason’s role will be to focus on
enhancing the National Account offer and to
lead the dedicated, knowledgeable account
team, and through adding to the team’s
expertise and understanding they will be
able to offer the full SIG UK product mix,
resulting in more customer-focused
solutions.
Upon his appointment, Jason commented:
“It’s an exciting time to join SIG UK, there
has been a lot of positive change, putting
customers fully in focus, and it’s great to
see the enthusiasm the team have for this
direction. I’m looking forward to being part of
the journey for SIG UK in 2022.”
www.sigroofing.co.uk
More news, updates and interviews at www.total-contractor.co.uk
‘BUSINESS AS USUAL’ FOLLOWING FILON MBO
Filon Products Ltd, the innovative GRP
construction products manufacturer, has
announced another important milestone in the
company’s history.
Mark Wilcox, along with the senior management
team of Craig Bainbridge, Laura Francis, John
Charles, Bharat Gandhi, Sally Stokes, Richard
Davies, and Nigel Brumby, have completed a
management buyout.
The company says this means that with immediate
effect Steve Vickers is stepping down from his
position as Managing Director and Mark Wilcox has
taken his place.
Filon says Steve will stay with the company for a
while and focus his efforts on the Technical
Department, and “he isn’t leaving in a rush, so the
benefit of his experience, knowledge and expertise
will be available for some time yet.”
Steve explained: “I want to convey my support and
very best wishes for the new team that are taking
over the Company. They are all talented and very
capable individuals who have the best interests of
the Company and its workforce at heart.”
The new Filon board of directors, with Mark as
Managing Director, includes Craig Bainbridge, who
steps up to the position of Operations Director and
has full responsibility for the operational side of the
business. Laura Francis completes the board as she
takes on the position of Financial Director.
New Managing Director, Mark Wilcox, continued:
The new management team at Filon Products with new
Managing Director Mark Wilcox (front row, right) and outgoing
Managing Director Steve Vickers (front row, second from
right).
“The MBO is a natural step for us and falls in line
with our succession plans. We’re fortunate to have
been able to use the same legal and accountancy
firms as in the previous MBOs and enjoyed crucial
support from HSBC, and all the necessary finance is
in place so we can continue with the same excellent
service levels our customers rely on. It’s pretty
much business as usual.”
Filon’s range of GRP construction products include
profiled GRP rooflights, GRP valley troughs for
pitched roofing and a lightweight GRP over-roofing
system designed to refurbish existing asbestos
cement roofs without the disruption and cost of
asbestos removal and disposal. Flat sheeting is also
available for a host of applications including road
traffic signs and the Filon Product Development
team is always looking for something to push them,
so the company says if you have a requirement for
GRP products, give them a call, but 2022 is already
set to see some innovative new products being
launched and more information will be available
later in the year. www.filon.co.uk
TRADESPEOPLE WORRY ABOUT ACCIDENTS BUT AREN’T INSURED
Almost half (45%) of tradespeople say that
they’ve been seriously injured in an accident at
work during their career, according to new
research from Direct Line business insurance.
The survey also revealed that more than a quarter
(28%) of tradespeople often worry about the
possibility of sustaining an injury due to a workplace
accident. The findings come as it was revealed that
in 2020/21, 441,000 workers sustained a non-fatal
injury at work, according to the Health and Safety
Executive 2021 Report. In 2020/21, 102,000 injuries
resulted in absences of more than seven days,
highlighting the risks that workplace accidents can
pose to tradespeople’s livelihoods. Despite the
frequency of workplace injuries, over two thirds
(67%) tradespeople do not have personal accident
cover in place to help deal with the consequences.
Of those tradespeople who do not have this cover,
nor intend to get it, one in five (20 per cent) don’t
have it because they don’t think having an accident
at work is a financial risk, despite the overall cost of
accidents ‘being in the billions’. Almost one in five
(18%) don’t think having a workplace accident is a
threat to their livelihoods, while exactly the same
proportion don’t consider themselves prone to
accidents. www.directlineforbusiness.co.uk
10 TC FEBRUARY 2022

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Industry News
BARRIERS TO
HOUSEBUILDING
More than nine out of ten smaller
housebuilders have said planning is the
biggest obstacle to increasing their
housing delivery, according to a recent
survey from the Home Builders Federation
(HBF), Close Brothers Property Finance
and Travis Perkins.
The survey, now in its second year, takes a
deeper look at how the Covid-19 pandemic
has changed the landscape for housing
delivery via SMEs, and includes an in-depth
focus group this year, which drills down into
the key findings from the survey.
The findings also showed that 78% of
housebuilders see the supply and cost of
materials as a major barrier to delivery,
which was up 20% from last year.
In recent months, global materials shortages
and subsequent price inflation have proven
to be another significant barrier for SMEs,
and it now features as one of the top three
major barriers identified by respondents.
They survey also showed that 59% see the
supply and cost of labour as a major barrier
(up from 19% last year).
Stewart Baseley, Executive Chairman of the
Home Builders Federation, said: “Recent
decades have seen a collapse in SME
builders numbers and the survey shows the
considerable challenges the sector continues
to face. Every single SME I speak to is
suffering badly from delays to the planning
process. SMEs are literally having to put their
businesses on hold whilst Local Authorities
delay the start of construction as their
planning departments don’t have adequate
capacity to process applications effectively.
Allied to concerns on materials and staff,
planning delays threaten the demise of even
more SME builders.”
More news, updates and interviews at www.total-contractor.co.uk
BLUE BOOK UPDATED WITH LATEST REGS
NFRC has published the Fifth Edition
(Revision A) of ‘Profiled sheet roofing and
cladding – the NFRC guide to design and
best practice’, which is more commonly
known as the Blue Book.
Aimed at designers, managers and estimators,
NFRC says the Blue Book provides an accessible
and practical guide to the application, design and
installation of profiled sheeting for roof and wall
cladding.
With the help of NFRC’s Sheeting and Cladding
Technical Committee and other stakeholders,
NFRC says the Blue Book has now been
updated and reviewed to ensure it
reflects the most recent changes in
building regulations, Approved
Documents, industry standards, and
modern techniques.
For the first time, the Blue Book now provides a
breakdown of the differences in building
regulations between all four Devolved Nations.
The revised Fifth Edition also incorporates the
updated BS 5427 Code of Practice for the use of
profiled sheet for roof and wall cladding on
buildings.
All NFRC members involved in sheeting and
cladding will receive a digital copy of the Blue
Book via email. NFRC says those who would like
a physical copy should request one by emailing
helpdesk@nfrc.co.uk and additional copies can
be purchased by NFRC members for £30 (£45 for
non-members) plus postage and packing.
NFRC has stated special thanks go to EJOT for
“kindly sponsoring this Fifth Edition of the Blue
Book”.
Commenting on the publication, Bob Richardson,
NFRC’s Head of Technical and Training, said: “The
Blue Book, now in its fifth edition, is widely used
and respected across the industry, being an
essential guide for those responsible for design
and detailing alike. We are pleased to publish this
latest revision which ensures the Blue Book is
Left: Bob Richardson; Above: The new Blue
Book sponsored by EJOT.
brought up-to-date with the latest
regulations and standards. It also, for
the very first time, has a breakdown of the
differences in regulation between the Devolved
Nations.”
He added: “I would like to thank the members of
the NFRC Sheeting and Cladding Committee,
members of NARM, as well as Tom Ogilvie, Bill
Hawker, Andrew Brown and William Bird, who
gave up their time to help produce this revision. I
would also like to thank EJOT for kindly
sponsoring this edition of the Blue Book.”
Robert Hardstaff, Managing Director of EJOT in the
UK, said: “As manufacturers, we share an
objective with NFRC to encourage best practice
and to support the sector by aiming to improve
quality standards from specification through to
installation. In a climate where change is moving
at a pace, we embrace the originality and
innovation of an industry where new products and
techniques provide an objective response to these
market demands. It’s therefore vital to keep our
technical knowledge fully updated – and that’s
what makes the Blue Book so vital.”
Copies of the Blue Book can be requested on the
NFRC website publications page. www.nfrc.co.uk
12 TC FEBRUARY 2022

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marley.co.uk/roofsystem

Product Availability
More news, updates and interviews at www.total-contractor.co.uk
LEAD TIMES SAID TO BE 24-41
WEEKS ON SOME ROOF TILES
John Newcomb, CEO of the Builders Merchants Federation and Peter Caplehorn, CEO of
the Construction Products Association, co-chairs of the Construction Leadership Council’s
Product Availability Working Group, have delivered their latest Product Availability update
which shows roof tiles are amongst the products still affected by supply challenges with
“lead times of 24 weeks and rising to 41 weeks for some profiles.”
sales remain strong, a
gradual improvement in supply
“While
has been helped by the seasonal
reduction in demand – particularly in domestic
repair, maintenance and improvement (RMI) over
the Christmas period. Going into the new year
there are relatively good stocks and availability of
most products, including timber where prices
have also fallen from their peak.
“However, as reported in previous statements
supply challenges continue to affect bricks and
aircrete blocks, roof tiles, steel lintels, manhole
covers, plastic drainage products and certain
sealants, coatings and paints.
“In addition, a shortage of semi-conductors is
constraining the availability of boilers at a time
when demand is exceptionally high. Semiconductors
are important components for many
advanced construction products including lighting
and fire protection systems, kitchen white goods
and air-source heat pumps. Although PAG has
not seen direct evidence that a shortage of chips
is affecting production, we will be increasing
market surveillance to spot any early signs of
market disruption.
“Rising energy costs and price inflation continue
to cause concern, with the latest forecasts
anticipating 2022 price inflation from 7-10+%,
with multiple increases expected for some
products.
“The impact of Omicron has been limited, with an
overall level of absence across UK industry at 5%
or less during the past month, though some
sectors, such as haulage, have been hit harder
than others. Absence due to Covid remains a risk
over the winter period but appears unlikely to
cause major disruption at current levels.
“Looking more closely at current and future
challenges:
• A global shortage means that semiconductors
are on allocation. Due to the size of
their orders, there is a natural bias in the
system towards automotive and electronics
firms, which may cause issues for
manufacturers of boilers and building related
electrical systems.
• The high level of demand means that a
shortfall in the domestic production of bricks,
which is already at full capacity, will continue
throughout 2022 until three new UK brickmaking
plants come on stream in 2023 and 2024,
boosting UK annual capacity by about 150m
bricks per year. Imports largely from the EU and
potentially beyond will be required to meet
current demand.
• Demand for roof tiles remains high with lead
times averaging 24 weeks and rising to 41 weeks
for some profiles. Additionally, clay tiles are
subject to price increases due to rising energy
costs.
• Raw material supply for plastic products has
stabilised over the last quarter, leading to
improvement in product supply. Order backlogs
are not growing but are unlikely to be cleared
until the second quarter of this year.
“We continue to stress
the importance of
maintaining open lines
of communication
throughout the supply
chain”
• Delays and volatile prices for global shipping
look set to continue at least until Q3 2022. China
is home to seven of the top 10 container ports,
which have a sustained ‘zero’ policy with regard
to Covid outbreaks, leading to shutdowns and
delays that have worsened global bottlenecks.
Furthermore, with the Beijing Winter Olympics
taking place in February, factories will be closed
in 64 northern Chinese cities to improve air
quality. This will almost certainly affect some
construction products, which will have a knockon
effect of levels of inventory later in 2022.
• While the issues previously affecting timber
and cement availability have eased, they have not
been fully resolved, and longer lead times may
return as the volume of demand increases later in
the year.
“We continue to stress the importance of
maintaining open lines of communication
throughout the supply chain and encourage all
sectors to continue to work closely and
collaboratively to manage challenges and plan
future work.”
www.constructionleadershipcouncil.co.uk
14 TC FEBRUARY 2022

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LRWA Awards 2022
FINALISTS ANNOUNCED FOR LRWA’S
MARCH AWARDS CEREMONY
The shortlisted projects for this year’s LRWA Awards showcase “the versatility of
liquids, the impressive skills of roofing contractors and the resilience of our sector
throughout the pandemic”, with the winners set to be announced at a gala dinner on
23 March 2022 at the Titanic Hotel in Liverpool’s Stanley Dock.
The finalists for the 2022 Liquid Roofing and
Waterproofing Association (LRWA) Awards
have been announced.
A panel of independent judges, including
specifiers and technical experts, drew up the
shortlist based on strict criteria, including project
complexity, standard of workmanship, evidence
of problem solving and aesthetics.
The 20 finalists span four
main categories,
including Liquid
Roofing Project
of the Year
under 1,000
sq m,
Liquid Roofing Project of the Year over 1,000 sq
m, Liquid Roofing Project of the Year in a Buried
Application, and Liquid Waterproofing Project of
the Year.
The winning projects will be announced at a gala
dinner on 23 March 2022 at the Titanic Hotel in
Liverpool’s Stanley Dock. Backed by several
supporters, including headline sponsor, MOY the
event is set to welcome more than 300 people
including contractors, manufacturers and
suppliers from across the liquid
roofing and waterproofing sector.
The gala dinner will also
recognise the talents of
individuals with awards for
Trainer of the Year and Student of the Year.
Sarah Spink, CEO of the LRWA, commented: “We
have had another fantastic response to our
awards with entries demonstrating the versatility
of liquids, the impressive skills of roofing
contractors and the resilience of our sector
throughout the pandemic.
“As always, the judges had a difficult task
selecting the finalists but have followed a
stringent scoring process to pick out the most
exceptional projects. The bar has been set even
higher this year, so all those shortlisted should be
very proud of their achievement and we wish
them all the best of luck.”
Read on for the finalists in each category
The LRWA Awards and Gala Dinner will
take place on 23 March 2022 at the Titanic
Hotel in Liverpool’s Stanley Dock.
16 TC FEBRUARY 2022

The finalists for the 2022 LRWA awards are:
Liquid Roofing Project of the Year
1000m²:
Above: Sarah Spink, CEO of the LRWA, presenting at the LRWA Awards 2019.
“The bar has been set even higher this year, so all
those shortlisted should be very proud of their
achievement and we wish them all the best of luck”
• Admiral Lord Nelson School: Sika Liquid
Plastics and Davis Roofing
• Kellogg’s Wrexham: Makers Construction and
Triflex
• Lawrence Hall: WestWood Liquid Technologies
and Kingsley Roofing (Midlands)
• Park Inn Hotel: Kemper System and Castle
Contractors NW
• Radisson Blu Hotel, Manchester Airport:
Kemper System and Castle Contractors NW
Liquid Roofing Project of the Year in a
Buried Application:
• Brighton College: IKO and BriggsAmasco
• Leeds Skelton Lake Motorway Services: ABG,
Kemper System and Cawston Specialist Roofing
• Miles Street: Moy and PCS Ltd
• Plough Lane: Triflex and Kingsley Roofing
(London) Ltd
• Vintners Place, London: WestWood Liquid
Technologies and Ifield & Barrett
“Good luck to all the
finalists from the
team at
Total Contractor. We
can’t wait to celebrate
the fantastic projects
from within the
sector!”
Liquid Waterproofing Project of the Year:
• Chase Farm Hospital Car Park:
StructureCare and Pitchmastic PMB
• Grafton Street Podium Deck: Mulberry GBC
and BMI
• Howard Town Mill Balconies: WestWood Liquid
Technologies and Everlast Waterproofing Ltd
• Jolley Ford Court Balconies: Axter and Blue2
Contractors Ltd
• Tesco Ferndown Car Park: WestWood Liquid
Technologies and Mulberry GBC Ltd
Trainer of the Year:
• Will Russell, MOY
• Graham Hindes, WestWood Liquid Technologies
• Paul Mahon, Sika Liquid Plastics
The winner of the Student of the Year category
will be announced on 23 March 2022.
For ticket information, visit:
www.lrwa.org.uk
@LRWAssociation
FEBRUARY 2022 TC 17

NFRC Roofing Focus
FIVE MYTHS ABOUT ROOFING
APPRENTICESHIPS
Ruth Scarrott, Head of Careers at NFRC, dispels the myths around apprenticeships to
help contractors overcome some of the perceived hurdles to adding apprentices to
their workforce...
Throughout 2021, the number of NFRC
members reporting that they were
experiencing recruitment difficulties
increased until it became as much of a concern
as material shortages. However, despite this,
many roofing contractors are still reluctant to
take on an apprentice – this is often due to
misconceptions about what taking on an
apprentice involves.
This is reflected in the number of apprenticeship
starts for our sector in 2020/21, which shows
300 apprenticeship enrolments in England for the
roofing Trailblazer, compared with 3,620 for
bricklaying and 8,610 for carpentry (according to
data from the Education and Skills Funding
Agency).
With National Apprenticeship Week taking place
between 7th – 13th February 2022, now is a
good time to look at some of the common myths
surrounding apprenticeships and see if there is
any truth behind them.
1I’m too busy to take on an apprentice
We know that roofing contractors are
busier than ever and that investing
precious time in taking on an apprentice may not
be the highest priority. However, this is a very
short-term outlook. By investing in new talent,
over time you will build your team to give you
more capacity and it will pay dividends in the
future.
“It is worth bearing in mind
apprentices perform productive
work while completing their
apprenticeship, and there are
savings to be gained”
– Ruth Scarrott
Planning your apprenticeship recruitment and
onboarding campaign (including having a training
provider ready to go) in advance, will save you
time dealing with last-minute challenges. We
provide a full guide on the steps you need to take
for a smooth and streamlined recruitment
campaign at:
https://www.nfrc.co.uk/careers/employers/rec
ruiting
To make the recruiting and training activities less
time consuming, draw on your team to come
together – this includes planning and execution.
Use the recruitment and training experience to
develop your team’s skills instead of feeling like
you have to do it all yourself.
Apprenticeships are a variety of lengths – the
roofing apprenticeship, for example, takes two
years to complete. Once trained, your apprentice
will be an effective member of your team and will
be a great asset to then support other new
apprentices in your business.
2It’s too complicated The process of taking
an apprentice on can seem complicated at
first, especially if you are doing this for the
first time. There are so many different acronyms,
funding bodies, and qualifications, and this varies
in each Devolved Nation. No wonder many roofing
contractors are left scratching their heads.
Continued on page 20
18 TC FEBRUARY 2022

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NFRC Roofing Focus
Continued from page 18
However, with a little bit of guidance the process
is actually quite straightforward:
• Develop a job description and job advert.
• Create your new recruit’s contract of
employment.
• Find a training provider or partner to help you
plan and recruit for your early careers job – links
to these are on our website.
• Prepare the team and manager of the new
recruit to make sure they are aware of their
responsibilities of managing them effectively.
• Advertise the job opportunity. We recommend
that you advertise your job opportunities through
Talentview Construction.
3It costs too much With the cost of
materials and labour increasing and
cashflow tightening, it is understandable
that roofing contractors may not want to take on
extra costs by recruiting an apprentice.
However, it is worth bearing in mind apprentices
perform productive work while completing their
apprenticeship, and there are savings to be
gained from lower recruitment costs and lower
salaries, compared to trying to recruit
experienced workers only. Apprentices also
become highly skilled even before they finish their
training.
According to the ESFA there are nine key benefits
that employers have identified for recruiting,
training and retaining apprentices. This included
employers confirming that 25 per cent of their
customers are willing to pay more for products
from a business that employs apprentices, and
74 per cent of employers say that apprentices
improved products or service quality. Plus, 78 per
cent say that they improved productivity.
It’s important to be able to work out how much
an apprentice would cost your business every
year. The core costs of employing an apprentice
are made up of hourly wage, yearly National
Insurance contributions and pension
The NFRC launched the Great British Slate Off competition to celebrate slate/pitched roofing apprentices. The winner of the
inaugural event, Jordan Maley, is pictured above (left) with his tutor Ross Hepburn of South Lanarkshire College.
contributions, training costs and providing
appropriate PPE, tools and uniform.
There are a variety of funding options open to
employers of apprentices. These include the
ongoing government apprenticeship incentive
payment (£3,000) for recruiting a new apprentice
and the apprenticeship grants available through
the CITB.
4They’ll leave anyway Employers often say
that there is no point investing time, money
and effort into recruiting and training an
apprentice if they are going to leave or be
poached at the end of the apprenticeship.
According to the UK Government’s apprenticeship
achievement statistics, 64 per cent of
apprentices complete their apprenticeship, with
65.7 per cent being retained by their employer
after their apprenticeship ends. This may seem a
disappointing stat, however there will never be a
100 per cent retention rate with every employee.
Whilst apprentices are free to go where they wish
once they have completed their apprenticeship,
there are proactive steps you can do to ensure
they stay. More guidance on effectively inducting
and managing your apprentice can be found here
https://www.nfrc.co.uk/careers/employers/rec
ruiting.
Investing in apprentices by giving them a good
workplace experience will mitigate them wanting to
leave while creating a talent pipeline for the sector.
5There’s not enough training provision in
my area Roofing training provision is
spread across the UK, so it could well be
the case that your nearest training centre is not
as local as desired. Does this mean you shouldn’t
take on an apprentice? absolutely not. Here is
what you should do if there isn’t training provision
in your area:
• Call NFRC Careers Service to check as we
have close relationships with both existing and
new training providers and can make
introductions for you to speak to the right person
quickly and with confidence.
• Consider block release. This means instead of
your apprentice attending training once a week, they
attend for week-long blocks instead, still receiving
the training they need, but in a different way.
• Tell the CITB. Without industry feedback, the
CITB cannot effectively work with us to grow the
training provision for roofing.
Contact NFRC
www.nfrc.co.uk
@TheNFRC
20 TC FEBRUARY 2022

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Flat Roof Build-ups
GUIDANCE ON THE USE OF LIMITED
COMBUSTIBILITY BOARDS
Following increased enquiries regarding the use of limited combustibility boards on flat
roof projects, SPRA, LRWA and NFRC are working with industry to highlight some of the
issues when changing material specification in such situations, and the associations are
looking for input from throughout the supply chain as they work to produce a guidance
document to ensure safety and best practice for those involved on flat roof projects.
SPRA, LRWA and NFRC have authored a
joint flat roofing advisory communication
about the use of limited combustibility
boards in flat roofing. It states:
“Within the flat roofing industry, there is a
growing demand for products with limited
combustibility to be used as alternatives to OSB3
and plywood, due to the drive of Approved
Document B towards increased uses of less
combustible decks and the fluctuation in supply
and prices of building materials throughout 2021.
This has resulted in an increasing number of
enquiries to the Single Ply Roofing Association
(SPRA), Liquid Roofing and Waterproofing
Association (LRWA), National Federation of
Roofing Contractors (NFRC) and their members
about the use of limited combustibility boards as
flat roof decks; abutment/ parapet wall upstands;
and acoustic mass boards, fire retardant boards
and/or recovery boards in flat roof overlays.
“Some of the materials being considered for use do
not appear to have relevant certifications relating to
their proposed use and, in some cases, LABC
Warranty, NHBC Warranty and Zurich Municipal
projects have advised against the use of such
materials for the uses mentioned above completely.
“By changing a material specification to include
alternative components such as limited
combustibility boards implies that the authorising
party is thereby assuming design liability for the
construction. There is a duty of care on the part
of the ‘designer’ to ensure that any changes to
the construction include the appropriate test
certification and are fit for purpose.
“In a cross-industry approach to this matter,
SPRA, LRWA and NFRC are working with others to
produce a guidance document about the use of
limited combustibility boards as flat roof decks;
abutment/parapet wall upstands; and acoustic
mass boards, fire retardant boards and/or
recovery boards in flat roof overlays. The aim is
to ensure that the correct guidance is available to
its members and specifiers, thereby preventing
misleading and inappropriate product claims.
“As there is no current industry standard for these
materials in this use, the group would expect all
manufacturers of limited combustibility boards to
follow the guidance set out in the incoming Code
for Construction Product Information (CCPI),
published in September 2021. Clause 5 states
specifically that, ‘A Manufacturer must provide
specific documentation when making any product
performance claims which are outside of
Certification, Classification or Industry Standard
tests;
•All stated performance data must be referenced
back to a valid dated test or specified technical
assessment
• Where a test is referenced, it must state the
Construction Product tested, the test, date
passed, under what standard, where
tested and by whom and the last
date its validity was reviewed
• Stated performance data must
be clear as to whether it is based on
calculated and/or tested performance and
manufacturers must clearly state where tests are
laboratory tests
•Specific properties relevant to intended
application must be clear e.g.,
structural/fire/acoustic/ thermal
•Be specific to the intended application and
where known, provide examples of limitations or
inappropriate applications.’
“Ideally, in accordance with the CCPI, the group
would encourage that these products should be
certified by a third party such as BBA, KIWA etc,
for the intended application(s). It is not
acceptable simply to hold third-party certification,
which does not specify the intended application
as set out above.
“SPRA, LRWA and NFRC are requesting that
manufacturers of products under consideration
and their associated trade associations join in this
whole industry approach. In the meantime, prior to
any change in specification, we would recommend
that written clarification is sought from the
appropriate authority prior to commencement of
works as to what their requirements are.
Contractors who are installing such products in
flat roofing applications are invited to contribute
towards this initiative also.”
To join this important initiative,
please contact Anthony Hogan
(left), SPRA Technical Manager, via
technical@spra.co.uk and
request a questionnaire.
22 TC FEBRUARY 2022

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Part L
MAKE SURE YOU’RE PREPARED!
With the implementation of Part L less than six months away, Daniel Redfern, Marketing
Manager at Marley, gives an overview of what roofing contractors need to know now.
What is Part L?
Daniel explained: “Part L is a building
regulation that covers the ‘Conservation
of Fuel and Power’ concerning both new
construction projects and some refurbishment
work, for dwellings and other buildings in
England. It sets the standard for current and
future energy performance and carbon emissions,
which for the UK are a target of net zero
greenhouse gas emissions by 2050, with any
energy produced by fossil fuel offset by
renewable resources.
“Whilst highlighting the need to tackle the
damaging effects of traditional energy sources
upon the environment, managing the carbon
footprint for new build construction and the
refurbishment of the UK’s current housing stock
is seen as a key driver to reaching the net zero
goal. As such, manufacturers are working hard to
develop products that will help support this vision
– such as our Marley SolarTile.
“Coming into force on 15th June, 2022, with a
second update to deliver the Future Homes
Standard by 2025, it is important that roofing
contractors know what Part L means for them
and how to fully prepare to make the most of the
rapidly approaching changes.
Meeting energy targets
“Of course, there are a number of ways that
these targets can be met, but currently one of the
most cost-effective way of achieving them is by
utilizing a combination of an efficient gas boiler
along with a solar photovoltaics (PV) system on
the roof. With almost 1 million UK homes having
already gone solar, and levels of public support
running high, it is likely that energy derived from
solar will significantly contribute to the UK’s
reliable green energy resource.
“Contractors not
incorporating solar
may see their earnings
potential decrease as
they are unable to
complete a full roof
and may not even be
considered at
tendering stage at all”
“With Solar Energy UK predicting that Part L –
which requires new homes to produce 31% less
carbon emissions – could lead to a five-fold
increase in new homes incorporating solar
technology, this represents a significant
opportunity to roofing contractors who are willing
to build upon their experience and upskill their
workforce to fit solar systems.
Grasp the opportunity
“As Part L begins to take effect, there will likely be
an increased demand for roofing contractors who
can install solar systems. This will provide some
great opportunities, such as increased profit
margins and no tendering restrictions since all
aspects of a roof – both solar and non-solar –
can be completed. Unfortunately, contractors not
incorporating solar may see their earnings
potential decrease as they are unable to complete
a full roof and may not even be considered at
tendering stage at all.
Next steps
“Whilst investment will be necessary to ensure
that roofing contractors are qualified to fit solar
panels, the benefits and ongoing opportunities far
outweigh the initial costs. To be fully prepared for
Part L, we recommend that contractors:
• Become MCS certified The Microgeneration
Certification Scheme (MCS) covers installations
of solar PV systems. To apply, you will need to get
the appropriate training for solar PV connection
and apply to a certification body to arrange
assessment. More information can be found at
Becoming certified - MCS (mcscertified.com). In
addition, as part of our ‘Supporting the Roofer’
initiative, all roofing businesses can claim a £50
discount on their MCS application via a
collaboration with NAPIT. Visit
www.marley.co.uk/mcsapply for more details.
• Take advantage of free training and
resources Look out for our free training sessions
designed to increase confidence in installation and
help you make the most of solar PV opportunities.
There are also easy to follow demonstration videos
and estimating tools on our website.
• Research solar PV systems available Our
integrated SolarTile is compatible with all clay
and concrete tiles and slates, so solar PV can
easily be incorporated into any roof design.
Supplied as a complete kit, all components, such
as adhesive flashing and fireproofing materials
are included and, featuring double fixing to
battens and trusses, there’s no need for counter
battens so there’s no extra material costs.
Coming in colour-coded boxes for ease of
installation, the patented push-together design
means that installation times of less than one
hour per kilowatt peak can be achieved.
For advice and further details on Part L or
Marley’s SolarTile system, contact Marley on the
details below:
Contact Marley
01283 722222
www.marley.co.uk/solarinstall
@MarleyLtd
24 TC FEBRUARY 2022

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Perfectly Pitched
CONSTRUCTING BONDING GUTTERS:
ALL YOU NEED TO KNOW
Technical roofing consultant John Mercer continues his series of articles focusing on
best practice when it comes to pitched roofing projects, this month focusing on the
key points and options to consider when constructing bonding gutters.
In my previous article I discussed the potential
for disputes to arise when stripping and retiling
a roof adjoining an adjacent roof. In this
article, I will examine the various technical options
for successfully constructing bonding gutters.
The purpose of bonding gutters
To recap; what is a bonding gutter and why is it
necessary? There are various forms of bonding
gutter, but essentially they are all used for the
same purpose, i.e. to weather a junction between
differing or unlike roof coverings; for example,
between double lapped plain tiles and single lap
tiles. The most common situation is where an old
roof is replaced on a semi-detached or terrace
house and the junction between the new roof and
an existing, neighbouring roof needs to be
weathered – i.e. sealed.
Weathering the junction
Perhaps the most simple way of weathering the
junction between roof coverings is to finish the
new tiling close to the neighbouring tiling and
then mortar-bed some form of covering over the
joint; for example, paving stones, copings or even
a row of tiles. Although I see this quite commonly
done, it is rarely successful or adequate. The
integrity of the joint relies on the mortar bedding,
so even if it is waterproof to start
with, it will inevitably start to
leak as soon as any small
cracks appear in the mortar
bed.
The correct way to weather the
junction is to install some form of
gutter, or channel, between the
different tiling. This can be formed from lead
or be a manufactured, pre-formed product.
Illustration no. 1 (below left) shows a typical
bonding gutter detail using a lead-lined drainage
channel at the junction between the two roof
coverings. In this detail, the lead lining carries
over vertical battens, finishing in welts at each
side. By limiting the gap between the two roof
coverings to no more than 15mm, there is no
need to use mortar to close the gaps between the
tiles to prevent access to birds and rodents.
Another option is to use a preformed bonding gutter
lining with water bars either side to direct water
towards the gutter. Some of these have an open
channel for the water, with the tiles mortar-bedded
onto each side, or as is the case in illustration no.
2 (below, centre), the edge tiles are bedded onto
the centre of the gutter.
Left: John Mercer, Technical Roofing
Consultant.
An increasingly popular form
of bonding gutter is a preformed
one with a central
upstand. The advantage of this
type is that there is no need for
any mortar bedding. The tiles at
either side are finished close to the
upstand to close the gap between the tiles – see
illustration no. 3 (below,right).
When installing the tiles abutting the bonding
gutter it may be necessary to remove tile nibs to
enable the tiles to sit close over the bonding gutter
upstands. It is also a good idea to use screws to
secure the edge tiles, making sure the fixings do
not penetrate the gutter lining, of course. Screws
make it easier to pull the tiles closer onto the
battens, further reducing the amount of possible
‘kicking’ over the gutter upstands.
Remember that if the tiles or slates are laid cross
bonded, it will be necessary to either cut half tiles
in the neighbouring tiles or slates, or obtain tile
and half or slate and half widths.
Assuming that the bonding gutter is to be
installed over the party wall, it is important that
Illustration no. 1: lead-lined drainage channel at the junction
between the two roof coverings.
Illustration no. 2: edge tiles are bedded onto the centre of
the gutter.
Illustration no. 3: tiles at either side are finished close to the
upstand to close the gap between the tiles.
26 TC FEBRUARY 2022

CERTIFICATE 12/4895
the fire stopping between the adjoining properties
remains uncompromised or be installed if not
present. Firestopping material must be installed
tightly packed and compressed under the bonding
gutter and between the battens directly over the
party wall.
The preformed gutter linings shown in
illustrations 1 and 2 can be installed directly over
the tile battens. This means that, although the
bonding gutter is normally installed centrally over
the party wall, it does not have to be. I reiterate
the advice I gave in my previous article; bonding
gutters can often be the cause of disputes
between neighbours, and my strong advice to
anyone about to install a new roof adjoining a
neighbour’s roof is to firstly talk to the neighbour
to explain and agree the installation process.
This is important because half of the bonding
gutter will be on the neighbour’s side of the roof.
If agreement is not possible, the alternative
“My strong advice to
anyone about to install
a new roof adjoining a
neighbour’s roof is to
firstly talk to the
neighbour to explain
and agree the
installation process”
option is to position the bonding gutter so that it
is wholly on the side of the roof being renewed
and there is no encroachment onto the
neighbour’s side.
This is particularly easy to do for bonding gutters
that sit over the tile battens, such as those shown
in illustrations 2 and 3, as there is no need for
any additional structure support for the bonding
gutter lining.
In summary:
• Bonding gutters form a weathertight
junction between differing roof tiles or slates.
• Ensure all tiles or slates fitted directly
over the bonding gutter weather channels
are securely fixed – ideally use screws, but
take care not to penetrate the gutter lining.
• Where installing over a party wall, ensure
the firestopping is present and not
compromised.
• Try to reach agreement with the
neighbours before starting work. If that is not
possible, install the bonding gutter wholly on
the roof being renewed.
Contact John Mercer
www.johnmercerconsultant.co.uk
@Johnmercer3
helping pe eople
embrace light,
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Installer Scheme
HAVE YOU GOT WHAT IT TAKES TO BE
A CEDRAL SELECT PROFESSIONAL?
Cedral is looking to raise the bar for UK installers and provide homeowners with the
level of service they deserve following the launch of its new Cedral Select Professional
scheme.
Cedral, a leading manufacturer of fibre
cement facades and roof slates, has
launched Cedral Select Professional, a
new initiative which it says will establish the
highest service standards in the sector, while
helping to connect homeowners with the right
installers.
Cedral says trained installers need to demonstrate
a high level of skill, safety and a proven track
record of customer care, and in return they will
receive marketing support, product training and
installation tips from one of the biggest
names in the building products sector.
Cedral Select Professional installers
will also benefit from loyalty
programme incentives.
There are two levels of Cedral Select
Professional, and businesses can opt to
become Members or Partners. Cedral says that
whilst both levels receive technical support,
training and gain accreditation from Cedral,
Partners benefit from pre-qualified quote
requests from customers via an online portal and
exclusive sales toolkits.
Lisa Grosse, Cedral’s Brand and Customer
Journey Manager, said: “We’ve worked hard over
recent months, talking to installers and
customers alike about how we can improve the
experience for all parties. While customers
wanted confidence when appointing a reliable,
knowledgeable and experienced installer; roofing
and cladding contractors expressed a need for
even better marketing and technical support. We
think with Cedral Select Professional, we’ve got
that balance right, with more happy customers
and profitable installers at the end of projects!
Left: Lisa Grosse, Cedral’s Brand and Customer Journey Manager.
“Life is tough enough at the
moment for the building trade and
we want to be a supportive partner to
installers grappling with the challenges of running
a stressful business.
“The big idea behind Cedral Select Professional is
that we handle the initial customer engagement and
ball park pricing, leaving the installer to do what
they do best – provide detailed quotes and install
the roof slates or cladding planks! So far, installers
who have signed up love this new way of working
and we think this will really take off in 2022.”
Cedral says becoming a Cedral Select
Professional is simple. Following an initial
installer assessment, including legal checks,
comprehensive product training is provided. Once
a technical validation is completed on a recent
job site to confirm the applicant’s ability to install
Cedral products, you’re up and running as a
Cedral Select Professional. To maintain quality
standards, Cedral points out regular project
“We think with Cedral
Select Professional,
we’ve got that balance
right, with more happy
customers and
profitable installers at
the end of projects!”
evaluations are undertaken, giving prospective
customers continued confidence in the scheme
and installers supportive advice on any areas of
their service that may need attention.
To find out more about becoming a Cedral Select
Professional, please email:
admin.uk@cedral.select
Contact Cedral
01283 501 555
www.cedral.world/en-gb/
@CedralUK
28 TC FEBRUARY 2022

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Solid Roof Considerations
ENERGY EFFICIENCY: THE HEAT IS ON
With massive price-hikes from energy suppliers this winter, keeping the heat in will be
a priority for consumers. Below, Ian Cowling, Sales Director of Eco-Logic Roofing
Systems, discusses why installers must offer the most energy efficient home
improvement products.
The price of gas has soared in
recent months, putting several
energy suppliers out of business.
Meanwhile, all the major suppliers have
confirmed huge price increases to their
standard variable tariffs from the
beginning of October last year.
As energy prices continue to
sky-rocket, and with
suppliers going bust
affecting just under 1.5
million households,
homeowners are set to
face a winter of
discontent.
According to figures from Oil & Gas UK, the price
of wholesale gas has surged by 250% since the
beginning of the year, and with the increase in
energy bills this winter expected to be followed by
an even larger energy bill rise from April,
consumers are fully aware of the need to cut their
energy spending.
The good news for installers is consumers will be
turning to home improvements to help insulate
their homes – and it’s vital that installers, builders,
and roofing companies can offer the most
thermally efficient products to win more business.
A cold snap
With many conservatories in the UK outdated
compared with the technology and performance
of the latest innovations currently on the market,
older conservatories will be getting noticeably
colder as winter hits.
Homeowners are quite rightly seeing replacing
and upgrading a conservatory roof as an instantly
Left: Ian Cowling, Sales Director at Eco-Logic Roofing Systems.
rewarding way of energy-proofing their home.
That has led to an increasing trend for replacing a
worn-out glass or plastic conservatory roof with a
new, lightweight tiled conservatory roof system
comprising of a structural aluminium skeleton
covered with PVC-U.
Thermal performance considerations
But while aluminium has been a favourite
material because of its strength, this can bring its
own problems when it comes to keeping heat in.
Solid roof options that utilise aluminium frames
can provide poor thermal performance, cold
spots, and condensation – and a poorly
performing conservatory roof won’t be any help
when it comes to getting those energy bills down.
Retaining heat
A solid conservatory roof replacement
constructed solely from timber eliminates many
of the issues associated with roofs with an
aluminium skeleton, including metallic cold spots,
condensation, and frequent draughts.
Of course, all-timber roofs are not a new concept,
and many installers will have fitted them
in the past, but their thermal efficiency is
now a game-changer when it comes to
replacement conservatory roofs and it’s
why we have enjoyed record sales and
are seeing an ever-increasing demand for
the Warm Roof Pro.
The Warm Roof Pro is all timber and uses
highly insulated SIPS (Structural
Insulated Panels) making it much more
thermally efficient. A standard Warm Roof
Pro roof achieves a U-value of 0.18
W/m²K on a standard installation, with
the use of insulated plasterboard achieving a U-
value of 0.10 W/m²K, creating a true warm roof.
Satisfying demand
It’s no surprise that we have gone from making
five roofs a week to 25-30 roofs a week for
customers – and that is only set to continue.
Consumers are much more in tune with energy
efficiency when it comes to what they want from
their home improvements now, and they now
have a much better understanding of phrases
such as ‘U-value’ and what they should actively
look for.
And with concern about their home’s energy
performance now even more under the spotlight
than ever due to major energy price increases,
installers, builders, and roofing companies must
be ready to meet that demand.
Contact Eco Logic / Warm Roof Pro:
01480 475957
warmroofpro.co.uk
@warmroofpro
30 TC FEBRUARY 2022

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Project Focus: Liquid Roofing
A HIGH-FLYING ROOF REFURB
Victoria Ramwell, of Kemper System, discusses the specification and installation
challenges of an intricate roof refurbishment next to Manchester Airport.
The location, access and roof design of a
building during any refurbishment is taken
into consideration during the planning
stages of all projects – but even more so when it
comes to a live, airport environment.
A recent project which presented such challenges
was the Radisson Blu hotel, which is located
within a short walking distance of Manchester
Airport. The building’s 2,800m² roof had proven
problematic for a number of years resulting in
persistent water ingress into a number of the
‘Premium’ guestrooms and corridor areas on the
top floor of the hotel. This meant the project was
time critical to prevent any further issues as well
as potential loss of profit for retailers.
Liquid specification
The height of the building
coupled with its location and
the roof design presented
many challenges for Castle
Contractors NW, who were
awarded the contract to
undertake the roof refurbishment in conjunction
with the architect’s specification.
The cold-applied liquid Kemperol 2K-PUR
waterproofing from Kemper System – which is
solvent free and odourless – was specified and
allowed the installation to progress with minimal
disruption to the day-to-day activities of this busy
commercial hotel, as well as the adjacent
Manchester Airport Terminal 2
building.
Overcoming on-site
challenges
The first challenge was to
remove 2,200 concrete flags
from the roof, each 50mm
thick and weighing approximately 40kg. The flags
covered approximately 40% of the total roof area
and had been used to help prevent the original
EPDM rubber roof covering from lifting in high
winds.
To remove these paving slabs and with Manchester
Continued on page 34
The Radisson Blu hotel: Kemper System’s Kemperol 2K-PUR was applied directly to the rubber membrane using a reinforcement fleece which is perforated as part of the production process
32 TC FEBRUARY 2022

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Project Focus: Liquid Roofing
Continued from page 34
Airport’s permission, a 53.5m high crane was used
to lift three cages onto the roof, which were each
filled with 25 flags at a time and then transferred
into five large roll-on, roll-off skips. In total, 76
tonnes of flags were removed, revealing the rubber
membrane underneath.
Securing the membrane to the roof presented the
next challenge. The flags had been installed onto
plastic footings which, when removed, had left
square prints which were still visible across the
roof. These were used as the locations for 2,600
concrete fixings each measuring 122mm long
with steel spreader plates, which were installed
into the roof deck providing the required
resistance to wind uplift.
The next step was to wash the roof using power
washers which, given its size, took just over a
week. This makes it stronger and greatly reduces
the risk of air bubbles under the fleece allowing
the resin to saturate the fleece more quickly and
improving the speed of application.
The waterproofing was required around extensive
detailing including gutters, outlets, pipe
penetrations, and structures required for a large
Above: Front of the hotel. The project presented some
difficult challenges with regards to access to the roof area.
window cleaning mechanism surrounding the
roof, as well as anti-slip walkways.
Adding to the challenges, the process required the
removal of very wet insulation prior to the new
insulation being installed and secured using the
spreader plates and fixing screws.
A large roof deck was also waterproofed which
had been designed with a concave in the middle.
When faced with bad weather and rain, the
LRWA Awards 2022 finalist
The Radisson Blu hotel project has
been shortlisted for the LRWA Awards &
Gala 2022, within the Liquid Roofing
Project of the Year >1000m² category.
Find out more about this year’s LRWA
Awards at: www.lrwa.org.uk
contractors were able to blow the water into the
concaved centre area to continue the
waterproofing and avoid any delays.
Innovative thinking
Further cost and time savings were achieved
thanks to a two-metre safe zone and roof safety
lifeline system developed by the roofing
contractors. This avoided the need for costing
scaffolding which could have cost over £100K
and was used as an alternative to barriers which
could have moved in the strong winds.
The zone was created around the centre of the
roof using large cones which were screwed into
some of the flags that had been kept on the roof,
preventing them from blowing off. These were
then placed two metres from the edge of the roof
with high visibility tape between each one.
The contractors could work safely and freely to
apply the waterproofing in this zone. For the final
part of the installation, harnesses and long ropes
were connected to the roof safety lifeline system.
The roofing contractor’s creative thinking, skill
and workmanship ensured the project was a
success, overcoming many challenges. The liquid
waterproofing has resulted in an aesthetic and
highly durable finish which will remain watertight
for decades, avoiding the risk of future costly
repairs and maintenance.
Contact Kemper System
The completed roof area at the Radisson Blu hotel, which is located a short distance from Manchester Airport.
www.kemperol.co.uk
@KemperSystemUK
34 TC FEBRUARY 2022

The choice for your polycarbonate project
Whether it’s a carport or garden centre, we have the
polycarbonate product, machinery and expertise to
get the job done. Our large multiwall polycarbonate
sheet range is so versatile that there is sure to be
a product for your needs. We hold stock on all
associated accessories including glazing bars,
profiles and fixings, together with cutting facilities.
Our technical knowledge and advice are second to
none enabling our clients to feel confident when
quoting on projects. So, if it is a conservatory roof,
carport, north light replacement, school canopy,
covered play area or even a garden centre, why not
give us a call or visit our website to download our
product catalogue.
• large stock range cut to size
• technical knowledge and advice
• nationwide express delivery
• competitive rates
tel: 01922 743553
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t: 01922 743553 e: sales@areco.co.uk
ARECO, Unit 2A Coppice Park, Coppice Lane, Aldridge, Walsall, West Midlands WS9 9AA

Blue/Green Roofs
OVERCOMING THE INSTALLATION
DILEMMAS OF BLUE / GREEN ROOFS
Following the Mayor of London’s pledge to increase the number of blue / green roofs
in the city, and various ongoing legislative changes in the pipeline, ACO Building
Drainage says installation of these roofing systems is set to increase over the next few
years. This raises the stakes for those involved in the delivery of blue / green roof
solutions, and as Neill Robinson-Welsh, of ACO Building Drainage explains, requires
a detailed understanding of how best to specify and install these systems.
As is well known across the construction
industry, green roofs provide several
benefits when compared to traditional
roofs. They are a way of incorporating greenery
and vegetation onto the top of buildings, which in
turn provides improved insulation to the
structure, helping to combat the urban heat
island effect, whereby city and suburban
developments absorb and trap heat.
They can also play a significant role in the
sustainable mitigation of heavy rainfall, when
combined with a blue roof attenuation system.
Blue / green roofs deliver on the four pillars of
SuDS, as they can achieve the objectives of water
quantity, water quality, amenity, and biodiversity,
whilst also performing the primary function of a
roof – to keep the building dry and warm.
The green roof rising
It is fair to suggest that blue / green roofs will
become increasingly prevalent in the years ahead
owing to their many advantages. According to
recent market research, the global green roof
market size accounted for $1.45 billion in 2019,
and is expected to reach $4.19 billion by 2027,
registering a CAGR of 15.6% from 2020 to 2027.
This trend is underpinned by urban greening
projects that seek to deliver more green areas
into cities without impacting existing
infrastructure.
In the UK, London is arguably the best example of
where blue / green roofs are starting to take hold
“It is fair to suggest
that blue / green roofs
will become
increasingly prevalent
in the years ahead
owing to their many
advantages”
in popularity. The London Plan – the spatial
development strategy for the city that
governs much of the planning of
new and existing developments
– specifically addresses blue
and green roofs. In the plan, it
suggests that blue / green roofs,
wherever possible, should be
included in major development
proposals.
Blue / green roofs are also backed
significantly by public figures. The
Mayor of London, Sadiq Khan,
recently pledged to increase the
number of blue / green roofs in
the Capital as part of his reelection
manifesto. As such,
roofing professionals must know the
key installation considerations ahead of
this trend taking hold.
The dilemma of the flat roof
When it comes to blue roof design, managing
Above: Uptake of blue/green roofs is expected to increase
further. Below: Installing RoofBloxx.
Bottom: ACO’s blue roof calculation software.
rainfall is simultaneously the
most important, yet also the
most challenging aspect.
This is because they are
technically flat roofs, which
means they must be designed
and installed according to the
British Standard for gravity drainage
on flat roofs, BS EN 12056-3:2000,
and meet the requirements of
BS 6229:2018
However, the primary
drainage function of a flat
roof and a blue roof are not
the same. The former
requires the roof to drain very
quickly in an extreme event, while
the latter is designed to retain water for up to 24
hours or longer.
Continued on page 38
36 TC FEBRUARY 2022

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Blue/Green Roofs
Continued from page 36
In direct response to this, blue roofs are typically
designed to use a single roof waterproofing layer
that incorporates a modified drainage system,
which aims to accommodate both drainage
extremes. This approach has an inherent problem
however, in that it involves a degree of
compromise, and therefore also requires an
acceptance of increased and managed risk.
Failures in blue roofs won’t just create a leak –
but it will likely lead to damaging flooding. Clearly,
for habitable and sensitive buildings, there are
serious implications if this happens,
and it often leads to a reluctance to
plan such systems in these
locations. The possibility of
flooding may inhibit the number
of blue roofs that can be
specified and installed in a city
such as London, which has a high
density of buildings that would fall into
the category of ‘habitable or sensitive’.
This approach to blue roof design is not
appropriate given the drive to increase the number
of blue roofs in urban areas. Instead, a de-risking
approach is required – one that accounts for the
key water management factors, without impacting
the ability of a roof to perform its function.
Separating the roofing systems
The most effective way to deliver a blue roof
solution that minimises the flooding risk is to split
the roof into two distinct systems. This involves a
specifically engineered blue roof attenuation
system, such as ACO’s RoofBloxx, that sits above
a standard flat roof which has been designed and
installed in the normal way.
The result is an attenuation system that delivers
slower drainage and holds water in instances of
high rainfall, working as a separate element to
the main roofing system. In other words, this
ensures roofers can adhere to BS EN 12056-
3:2000 and other planning regulations, even
when working with two systems that seemingly
contradict each other.
Left: RoofBloxx. Above: Blue/green roof completed with RoofBloxx; Below: ACO’s blue/green roof build-up.
There are other advantages
to this approach beyond
just compliance with
regulations. First, the roof
membrane is not compromised,
which means decreased risk and no
warranty issues. It also means that the system
can operate on half empty in a 24-hour time
period, so it is compatible with standard civils
hydraulic calculations.
Along with the above, inverted roof designs –
which are the most common build up with blue
roofs – can be achieved without reduction in
U-values or potential buoyancy issues. Crucially,
this makes them suitable for use above habitable
areas due to the increased resilience of separate
waterproofing and attenuation layers.
While it may seem counter-intuitive, creating an
overall design that separates the roof and the
attenuation system greatly reduces risk and
actually improves hydraulic performance. This is
key in delivering blue roofs at scale, as well as
improving perceptions of their suitability across a
range of building types.
It’s crucial to collaborate as early as
possible
From low drainage flow rates through to differing
structural load, fire break and wind uplift
considerations, the design requirements of a blue
roof are myriad. With so many factors in play,
collaboration is critical to their successful
implementation. As the prevalence of blue/green
roofs increase, so too does the importance of
getting them right in a time-efficient manner.
With roofing contractors at the heart of
installation, and invariably the most
knowledgeable party of any project, it is critical
that they are engaged as early as possible in any
blue roof design process. Equally, drainage
experts such as ACO Building Drainage have a
part to play, given the innovative yet logical and
proven approach that has been outlined above.
By adopting this approach, the industry can
address the installation dilemma associated with
blue roofs, and ensure that we provide solutions
that meet the sustainability needs of tomorrow’s
urban environments.
Contact ACO
www.aco.co.uk/blue_green_roofs
@ACO_BD
38 TC FEBRUARY 2022

Roofing & Waterproofing
THE KNOWLEDGE CENTRE
In a move to provide even easier access to content that can assist the supply chain in
delivering projects that perform as designed and stand the test of time, Sika has
expanded its online Knowledge Centre to further meet customers’ requirements when
it comes to waterproofing and roofing. Total Contractor finds out more…
Sika has included a range of expert roofing
advice as part of its Knowledge Centre, an
educational portal which is designed for
customers to build on their trade skills.
The e-Learning platform features a series of ondemand
webinars, which are free and available to
view at any time. Webinar subjects covered
include green roof systems, the launch of Sika’s
structural roof waterproofing system SikaBit
ProMelt, and its metal roof refurbishment
solution, Sika Pro-Tecta.
In addition, CPDs titled ‘Successful Roof
Refurbishment’ and a presentation on ‘Selecting
a Flat Roofing System to Meet Modern
Demands’ are also available to view on demand
here: https://gbr.knowledge.sika.com/page/ondemand-webinars.
The Sika Knowledge Centre
also offers in-depth guidance related to Sika
products in the flooring, and concrete
refurbishment sector.
Cheryl Douglas, Head of Marketing at Sika
Limited, explained: “Within a diverse landscape
of roofing technologies, the Sika Knowledge
Centre presents an opportunity to get to grips with
Sika’s unique range of products and solutions.
This is an excellent development in the
implementation of our innovative Sika UK
Knowledge Centre, which presents a fantastic
opportunity for customers to access new
guidance and gain new skills at a time of their
choosing.”
Highlighting the benefits of SikaBit
ProMelt
Featuring expert guidance delivered by Sika’s
roofing team, the free-to-join webinar launch of
SikaBit ProMelt provides an enlightening insight
“The Sika Knowledge
Centre presents an
opportunity to get to
grips with Sika’s
unique range of
products and
solutions”
into the benefits of the high-performance
structural waterproofing system. The hot-applied
membrane is the latest addition to Sika’s roofing
portfolio of bituminous, single-ply and coldapplied
liquid membranes, offering outstanding
waterproofing performance and design versatility
for a variety of new and refurbishment
applications.
Due to its non-tracking monolithic state, SikaBit
ProMelt is suitable for inverted cold flat roofing
areas, podium decks, balconies and terraces. It is
also the ideal system for new-build construction
sites on account of the short duration time
between its installation and its ability to be
trafficked.
Robust and reliable, SikaBit ProMelt is BBAcertified
for the durability of the design life of the
roof, making it the perfect solution for high-traffic
flat roofing areas.
Providing excellent insights into cuttingedge
solutions
In addition to a module dedicated to Sika Pro-
Tecta profiled metal roof solutions, the Sika
Knowledge Centre offers an informative window
on the company’s range of cutting-edge corrosion
systems and full roof waterproofing systems.
Whilst a webinar titled ‘Designing for a
Sustainable Future’ looks into what constitutes a
green roof in terms of design and sustainable
performance, an e-Learning course, Flat Roofing
– Planning to Succeed, has also been created to
provide more general advice on a popular
industry topic:
https://gbr.knowledge.sika.com/page/roofing
With a diverse library of educational courses
already available on matters relating to sectors
across the construction industry, the Sika
Knowledge Centre will continue to grow over the
coming months to include additional learning
content.
Cheryl Douglas concluded: “The roofing webinars
are designed to improve the specification and
installation process, with the overall aim of
upholding best practice standards across the
industry. Whether they’re a contractor, specifier
or builder’s merchant, a visit to the Sika
Knowledge Centre will benefit any of our
customers. We urge them to take a moment of
their time to log on to the website where a wealth
of building-based knowhow is available at their
fingertips.”
Visit the Sika Knowledge Centre
https://gbr.knowledge.sika.com
www.sika.co.uk/roofing
40 TC FEBRUARY 2022

Rooflights: Planning & Installation
THE LOGISTICS OF INSTALLING
NEW ROOFLIGHTS
It’s one thing for a homeowner to decide on and specify a beautiful new rooflight for
their property, but when it turns up on their doorstep, there’s the small matter of
getting it installed. Peter Daniel, Product Innovation Director at the Rooflight
Company, explains how to manage the logistics of installing a new rooflight…
Like all individual elements of construction,
rooflights arrive on site on the back of a
lorry, delivered at what is essentially
ground level. Regardless of whether the final
destination of your client’s rooflight is on top of a
single storey extension or four storey home, it
needs to get up there if it’s going to be installed.
Access
The first thing that needs to be considered with a
new rooflight is the lorry arriving at site; in other
words, access. At the Rooflight Company, we
deliver multiple products to different customers
in one vehicle so as to limit our mileage and
carbon emissions, and as such, our standard
delivery vehicles are quite large.
If a heavy goods vehicle can access the site,
there is no problem. But if not, it’s best to let the
manufacturer know beforehand to see if
alternative arrangements can be made. At the
Rooflight Company, we deliver kerbside as
standard, but we always try to accommodate
special requests if we’re given enough notice.
Unloading
The next thing to consider is unloading the
rooflight from the delivery vehicle. Don’t
underestimate the size and weight of a rooflight,
especially ones designed in the style of the
original cast-iron rooflights of the Victorian era.
Whilst our products are made from steel and
aluminium, when you factor in the glass, they’re
still too heavy to be managed by hand.
For that reason, you will most likely need
mechanical assistance to offload the rooflight, as
deliveries might be refused if you’re unable to
accept them safely. The key things that affect the
weight of rooflights are usually the size, but also
the function. Even a small neo Advance Skywalk,
under 1m², may still weigh more than 100kg
because it is designed to be walked on. We will let
the client know the weight of the product before it
arrives, so do ask them for this information.
Installation
When it comes to installation of large glazed
units, you may even require a crane. Usually, the
manufacturer will be able to give you some
advice as to whether that will be necessary, so
it’s definitely worth checking.
At the Rooflight Company, if you have access
constraints on site then we tend to recommend
building larger bespoke rooflights modularly out of
multiple smaller linked rooflights. This makes
both installation and ongoing maintenance easier.
We can explain this to your client directly and
offer advice on all the options available as part of
our bespoke design service.
Maintenance
That brings us to the final point, encourage your
“The logistics of installing a rooflight are quite
straightforward if you plan ahead.”
client to think long-term. Most modern rooflight
frames will be guaranteed for up to ten years, and
last way beyond that, but like all building
products, there are ongoing maintenance
considerations. In a few decades’ time, elements
may need to be replaced, but there won’t be the
equipment and manpower on site that was there
during the installation.
This is the real drawback of extremely large single
pane rooflights and why it might be worth making
a perceived aesthetic sacrifice in choosing to link
multiple smaller units. Linked rooflights still make
a real statement whilst being far more practical in
the long-term.
The logistics of installing a rooflight are quite
straightforward if you plan ahead and remember
to communicate with the manufacturer. While our
rooflights are designed for easy installation and
come with comprehensive installation manuals,
the team at the Rooflight Company is always on
hand to give advice and help you plan.
Contact the Rooflight Company
01993 833 155
www.therooflightcompany.co.uk
@RooflightCo
42 TC FEBRUARY 2022

STR3NGTH
IN NUM8ERS
THE NEW AND IMPROVED VAPOUR PERMEABLE
ONDUTISS AIR MEMBRANE RANGE.
When it comes to tensile strength, tear resistance
and ductility, the numbers speak for themselves.
STRENGTH COMPARISON
Tensile strength
(MD / CD)
Tear resistance
(MD / CD)
Elongation
(MD / CD)
ONDUTISS
AIR 100
ONDUTISS
AIR 120
ONDUTISS
AIR 140
ONDUTISS
AIR 160
260/170 300/200 350/230 350/240
100/120 120/160 130/200 140/230
70/70 70/70 70/70 70/70
To find your local Ondutiss stockist please visit: www.onduline.co.uk
To become an Ondutiss stockist, please call us on: +44(0)207 7270533,
email us at: enquiries@onduline.net or visit: www.onduline.co.uk

Rooflights: Project
LET THERE BE LIGHT!
The Glass Works includes 100,000ft² of new retail space, over 25,000ft² of food and
drink units and over 90,000ft² of leisure facilities including a Cineworld cinema and
Superbowl UK. Lareine Engineering was called on by main contractor Henry Boot
Construction to install a 1550m² double glazed canopy to the main thoroughfares – as
well as smoke curtains, forming part of the designer’s fire safety strategy.
The existing Metropolitan Centre
was built on the Glass Works
site in 1972. Incorporating
Barnsley’s historic market, the
building required a comprehensive
refurbishment, having previously been
subject to several layout changes,
resulting in the space becoming
cramped and outdated.
The completed project has created a
contemporary, multi-use environment
that’s bright, spacious and accessible Images: Lareine Engineering provided a number of solutions for the Glass Works site in Barnsley.
– and which is expected to stimulate
safe, healthy and attractive environment for
Barnsley’s economic growth over the coming
shoppers and visitors to the other amenities.
years.
The rooflight was fixed to a steel support
Project scope
structure (by others) and double glazed to class 1
The first phase of the redevelopment saw
non-fragility for maintenance purposes and the
Barnsley Markets move to a contemporary new aluminium glazing bars were powder coated to a
home in 2018, followed by the new state-of-theart
Library @ the Lightbox and Market Kitchen,
both of which opened their doors to the public in
2019.
Having submitted a successful tender for roof
glazing and smoke control in early 2019, Lareine
Engineering started work on-site as part of phase
two of the project in August 2020 – which
consisted of the primary retail and leisure
elements of the development.
The company designed and installed a Solus
Monopitch rooflight in an ‘L’ configuration to cover
the main shopping mall areas. Leg one measures
99.2m x 7.5m; and leg two, 82.5m x 10.2m,
giving a total area of approximately 1550m². This
provides high levels of natural daylight, creating a
special colour: YW255F Golden Beach.
In addition to roof glazing, Lareine
Engineering’s ventilation division
provided, installed and commissioned
two active smoke curtains and
associated controls. These were fitted
to the underside of plasterboard
bulkheads inside the walkway, to
compartmentalise the covered
walkway in the event of a fire.
Successful completion under
challenging conditions
With the bulk of Lareine Engineering’s work on
this project carried out during different phases of
the Covid-19 pandemic, the site operated regular
testing for all site personnel and required
enhanced PPE. Mobile tower cranes were
required at several locations for the glazing
installation.
Mathew Clarke, Contracts Manager, Henry Boot
Construction, explained: “From the initial design
tender, to final completion on-site, the Lareine
Engineering teams worked to a high standard and
maintained excellent communications. We are
delighted with their contribution to this important
project.”
The Glass Works opened on schedule, in the
summer of 2021 and now welcomes thousands of
shoppers and visitors each week.
Contact Lareine Engineering
01506 448140
www.lareineengineering.co.uk
@LareineEng
44 TC FEBRUARY 2022

NEW PAN 8 VERGE PACKS
PAN8 RH Verge 15mm
Extended.
Forticrete has launched new PAN8 Verge Packs
to provide professionals with a complete
portfolio of high-quality roof tiles and
complementary accessories.
Developed in response to rising customer
demand, the new system has been designed to
support roofing contractors in achieving the
highest quality finish when installing Forticrete’s
innovative PAN8 concrete roof tiles. Replicating
the characteristics of a traditional clay pantile,
the large format concrete tile can now be
installed in conjunction with the PAN8 Verge
system to ensure that water is discharged into
the gutter at the eaves, in addition to improved
longevity and durability, as the system has been
specifically manufactured to accommodate the
tile’s taller profile at the verge. Offering increased
build efficiencies, the roofing accessory is
available as a Verge Continuation or Verge Starter
pack, depending on the requirements of each
domestic or residential project.
Lewis Turnbull, Commercial Technical Manager
for Forticrete, said: “Our new PAN8 Verge Packs
have been designed to provide construction
professionals with ultimate convenience and
quality, to support them in completing roofing
installations to the highest standard. The market
is continuing to experience significant demand,
and the launch of our latest verge system will
support professionals in achieving an efficient
rate of installation, whilst creating a cohesive
and effective visual appeal.”
www.forticrete.co.uk
SIGA SLATE TOPS OFF SUMMER LAKE
SIG Design and Technology supplied natural slate for the roofs of an exclusive development of 60 New
England style homes that make up the Summer Lake development in the Cotswolds.
Each timber-clad lodge has a slate roof built using SIGA 13s, smooth, dark blue-grey commercial slate,
Summer Lake: All of the lakeside
supplied by SIG Roofing Natural Slate and installed by Fosse Specialist Roofing. This particular slate has very development’s off-plan plots are now reserved;
good availability, which was an important factor in its selection because the lodges are built on a plot-by-plot the majority of the bespoke-built lodges have
been constructed, with the final few homes
basis over several years. The lodges have an upper and a lower roof. The upper roofs have a regular pitch but scheduled for construction in spring 2022.
the lower, wrap-around roofs have a much shallower pitch. SIG worked with Fosse Specialist Roofing to ensure
these shallow-pitched roofs would perform throughout their lifespan. The headlap will vary depending on the design of the roof: the lower the pitch of the
roof, a greater headlap or a wider slate is required. SIG, supporting Fosse Roofing with the specification, supplied two sets of slates to each lodge, one
with an increased headlap for the shallower pitched slopes. With the scheme almost complete, SIG’s natural slates have proved so popular on the site
that Fosse Specialist Roofing has used them to replace the roofs of several existing buildings on the site to match that of the lodges, including the
concrete-tiled roof of an old fishing tackle shop and the tin-roofs of some old industrial buildings. www.sigroofing.co.uk
A BRIGHT, SUSTAINABLE FUTURE
Litecast Ltd. has installed a 350kW SolarEdge PV rooftop system at its new £13 million production
facility in Nuneaton, Warwickshire.
Comprising more than 1000 solar panels installed with SolarEdge Power Optimizers with module-level
monitoring capability, the installation is forecast to produce more than 284MW of electricity and offset the Litecast is embracing the value of solar technology
production of almost 80 tonnes of carbon each year. As such, it will play a major role in helping Litecast to to spearhead its mission to become the UK’s first
carbon neutral construction supply company.
achieve its goal to become the UK’s first carbon neutral construction supply company by the end of 2022.
Litecast is a precast concrete company that specialises in the manufacture of concrete floor beams that are used extensively in housebuilding. Nick
Spicer, Managing Director of Your Eco UK, the renewable energy specialist chosen to undertake the install, said: “Litecast is leading the transformation of
the construction industry through its pioneering use of energy-efficient technology and processes. When it came to installing a solar solution, it was
looking for a system that would generate the maximum amount of energy, while also delivering more value over its lifetime through reduced maintenance
costs, longer warranties and advanced safety features.” www.solaredge.com
FEBRUARY 2022 TC 45

Project Focus
A FLOWING FACADE FOR STUDENT
ACCOMMODATION
Total Contractor hears how installer Alumet utilised glass and metal cladding panels from
Proteus Facades to create a clever, glistening facade for the new River Street Tower student
accommodation development in Manchester.
Anew student accommodation development
in Manchester has been hailed as a
welcome addition to the city by the local
authority, residents and visitors, thanks in part to
a glistening facade created through the clever use
of glass and metal cladding panels from Proteus
Facades.
Designed by Simpson Haugh Architects and
developed by Downing Construction, River Street
Tower offers high quality, affordable student
accommodation that comprises of three distinct
structures. The largest reaches a colossal 32
storeys and sits alongside a second ten storey
structure and a smaller five storey building.
Based in Manchester City Centre, River Street
Tower is the latest in Downing’s portfolio of
student accommodation properties and is
situated in the First Street Neighbourhood,
between River Street and Garwood Street, next to
the Mancunian Way.
Dancing in the natural light
The development, which has successfully
regenerated a dilapidated brownfield site that
was previously considered to be a city eyesore,
features Proteus GL 5mm glass panels with an
RAL 5004 Dark-Blue finish.
Installed on the external façade of the 32-storey
building and across the inner courtyards, the
panels were chosen as the dark-blue finish
dances in the natural light, but without creating
glare for nearby traffic and passers-by.
Architects Simpson Haugh also specified the
Proteus GL panels as they have an EN13501
certified to A2-s1,d0 fire rating, which is in line
with Downing Construction’s strict safety
guidelines in all aspects of design and build – a
key requirement for all buildings developed by the
student accommodation specialist.
Sitting alongside other buildings in the
Continued on page 48
The River Street Tower student
accommodation, Manchester.

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Project Focus
Continued from page 46
The River Street Tower development features
Proteus GL 5mm glass panels with an RAL
5004 Dark-Blue finish.
“The panels were
chosen as the darkblue
finish dances in
the natural light”
bedrooms and apartments as well as resident
amenity space. It also features state-of-the-art
onsite amenities such as a cinema room, private
dining area, gym and gaming zone.
development, the glass panels
also provide a sleek
contrast against
Corten weathered
steel rainscreen
cladding which
features on the
external facing
elevations of the
connecting ten and
five storey structures.
These steel alloy panels,
which form a rust-like
appearance over time, were chosen
to provide a contextual connection with the
copper shades featured on other buildings in the
surrounding area.
Proteus Facades also fabricated Proteus SC 3mm
aluminium profiled panels in a matching RAL
5004 Dark-Blue gloss finish for installation
alongside the building’s windows. These panels
incorporate hidden vents that provide a clever
design-led way of improving
air circulation within the
building but without
interrupting the
quality aesthetics
of the external
façade.
Eye-catching
surface
The combination of
matching dark-blue
metal and glass cladding
creates a layered, reflective
sequence of surfaces that has been known to
catch the eye of passers-by, who stop to admire
the playful finish of the building’s surface. This
blue, reflective finish also helps the building to
blend in with the skyline too, reducing the
monolithic appearance of the tower.
River Street Tower comprises of 791 student bed
spaces that includes a mix of studios, cluster
Illuminating choice
At ground level, where the student amenity
spaces and associated plant and back of house
spaces reside, Proteus HR natural anodised
aluminium cladding panels feature on the base of
the building forming an external inset wall and
soffit. These panels were chosen to illuminate the
walk-way leading onto the courtyards and offstreet
entrances, and provide a lighter finish
against the dark blue façade.
Installed by Alumet, each Proteus GL, SC and HR
cladding panel is fixed to the Tower using a
unique system of aluminium carriers and
ancillary components, also manufactured by
Proteus Facades. The system can be installed on
to any type of wall construction and enables the
panels to be easily hooked in place. This useful
feature also means that individual panels can be
removed to allow access for service and
maintenance if ever required once the
development is complete.
Proteus Facades’ innovative rainscreen cladding
panels utilise an extensive range of materials such
as Aluminium, Glass, Copper, Bronze, Brass,
Stainless Steel, Zinc and Porcelain Ceramic. Each
system is manufactured to internationally
recognised quality standards, using the highest
quality materials, in accordance with its BSI ISO
accredited Business Management System for
Quality, Environmental and Health & Safety.
Contact Proteus Facades
0151 545 5075
www.proteusfacades.com
@ProteusFacades
48 TC FEBRUARY 2022

Promoting
systems-based
solutions
www.mcrma.co.uk
For a fully integrated supply chain
using metal-based products.
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.

Metal Facades & Roofs
METAL: THE SUSTAINABLE OPTION
By Carlton Jones, Director at MCRMA.
Over the past 40 to 50 years, there has
become an ever-increasing awareness
of environmental issues and the need
for sustainable development. At an
international level, commitments to climate
change, reduction of greenhouse gases and
keeping global temperature rise this century
below 2°C (preferably 1.5°C) above preindustrial
levels have been agreed. National
action plans on how countries will achieve this
target were reviewed at the COP26 conference
in Glasgow in November 2021. The UK
government has made a commitment to
reduce greenhouse gas emissions by at least
100% of 1990 levels (Net Zero Carbon) by 2050.
Key guidance
The new guidance document ‘GD39 Sustainability
and durability of metal roofing and cladding
systems’, from the Metal Cladding and Roofing
Manufacturers Association (MCRMA), focuses on
sustainability from a ‘fabric first’ approach, where
the metal building envelope provides a long-lasting
solution which can be future proofed for potential
changes of use of the building. This includes typical
materials used in MCRMA members’ products and
systems looking at factors such as durability,
maintenance, limitations in use (e.g., corrosive
influences etc.). The guidance gives an overview of
the types of products and components available
and how they are used to form systems for given
applications to meet specific project specifications
and requirements.
Metal roofing and cladding systems and their
associated components can significantly contribute
to achieving a sustainable building envelope
solution to meet both current and future needs and
requirements, thanks to their low maintenance,
durability, high recycled content, recyclability and
energy efficiency. MCRMA members can offer total
sustainable building design solutions thanks to a
range of complementary components and systems
Above: Architectural Profiles’ Slimwall CPS aluminium rainscreen system was
specified for the redevelopment of Trowbridge County Hall, to provide a retrofit
building envelope which could achieve a 40% reduction in carbon emissions.
The building has achieved a BREEAM ‘Excellent’ rating.
Image courtesy of Architectural Profiles.
which include sustainable high performance
thermal and acoustic insulation products; high
durability fixings, fillers, sealants and membranes;
daylight options to maximise the transmission of
natural light into buildings; flexible solar PV options
and fastening systems; and ‘green’ and ‘brown’ roof
options.
System life cycle
Steel and aluminium are the most common
materials used in metal building envelopes and
offer significant advantages when considering the
entire system life cycle. They are produced from
materials that have high recycled content from both
pre-consumer and post-consumer scrap and can
be reused or recycled repeatedly without losing their
qualities as a building material.
The document provides a brief outline of the
background, external influences and drivers for
sustainability e.g., international awareness, client
requirements, building regulations and
environmental evaluation schemes. Life cycle
assessments (LCA) and environmental profiling of
products are covered, together with some
environmental accreditation schemes – particularly
those credits which can be influenced by metal
roofing and cladding systems e.g., BREEAM, LEED
etc. The use of an environmental assessment
methodology or rating system can assist in the
design and construction of sustainable
buildings which are more energy efficient,
climatic responsive, material and resource
efficient, have healthier indoor environments
for occupants and limit waste emissions and
pollution.
MCRMA members can provide third party
assessed Life Cycle Assessments (LCAs) and
EN 15804 compliant Environmental Product
Declarations (EPDs) for their products and
systems, to assist designers and specifiers in
obtaining points and credits data to be within
environmental rating and certification schemes
such as BREEAM and LEED.
Meeting design objectives
The design life of a building can only be fully
realised if external building envelope materials
along with their component products have the
durability that can achieve that desired design life.
MCRMA members can support, contribute to and
enhance a building project’s sustainability
objectives and requirements at all stages of the
procurement process, through assistance with
developing energy efficient building envelope
solutions utilising metal roofing and cladding
systems which can offer low maintenance,
durability, high recycled content and recyclability.
As there is a natural split between sustainability
and durability topics, the MCRMA guidance
document is published as a suite of eight
standalone sections, each of which covers specific
but interrelated subjects, including sustainability
background, zero avoidable waste, environmental
assessment methods, durability, life cycle/whole life
costing, products and components.
Download the new MCRMA Guidance Document:
https://mcrma.co.uk/sustainability/
@MCRMA1
50 TC FEBRUARY 2022

ROOF
TUBE
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content for your sector
Easily
accessible on
your desktop,
mobile or
any device
Free
content that
is constantly
updated
Subscribe
to channels
for your specific
areas of
interest and
expertise
The new platform for digital content from the key players in
your sector, including: How-to’s; Project and product focuses;
Installation advice; Training and webinars; Interviews and opinions.
www.roof-tube.co.uk
In association with Total Contractor magazine.
To discuss showcasing your video content, contact Andy or Jake on:
01892 732 047
or email andydunn@media-now.co.uk / jakeroxborough@media-now.co.uk

Updates
For further info on all these updates and more, visit www.total-contractor.co.uk
BTS TAKES BENDING & FOLDING TO THE NEXT LEVEL
BTS Facades and Fabrications has invested in
a class-leading, fully automated TRUMPF
TruBend Center in tandem with a new TruBend
5000 Series with Automated Tool Changer.
This major investment has helped the company to
address the sector’s skills gap and adopt a
‘factory 4.0 mindset’ at its manufacturing facility
in Newton Aycliffe, County Durham.
Facade solutions from BTS include a selection of
rainscreen systems with various fixing
mechanisms, as well as expanded mesh and
interlocking plank systems. Among the fabrication
products available from the company are
bullnose flashings, coping systems, gutter
systems, louvres, fascias, soakers, soffit
systems, and rainwater pipes and hoppers. In
particular, BTS is said to have an enviable
reputation in fire- and CWCT-tested systems and
solutions.
Like many currently operating in a strong and
growing construction market, BTS says it was
struggling to find the right people due to a lack of
skills in metal-forming operations. In a proactive
move designed to negate this issue, the company
decided to automate and embrace a smart
factory ethos.
The company subsequently made visits to
TRUMPF facilities in Austria and Germany, where
the BTS team could see in-person the benefits
and component improvements available from
investing in a TRUMPF TruBend Center.
After gaining confidence from seeing the
production of its own parts, BTS selected a fully
automated TRUMPF TruBend Center 7030 panel
bender – as well as a TRUMPF TruBend 5170
press brake with the tool changing capabilities –
thus allowing the complete automation of
components over two machines.
The fully automatic TRUMPF TruBend Center 7030
offers unbeatable productivity supported by
technical versatility and part consistency by way
of the offline programming solution TecZone Bend.
Capable of reducing the workload of a fabrication
shop’s entire team, the machine’s rotary part
manipulator handles sheets with consummate
ease, where axis speeds of 3,000 mm/s ensure
panel bending in record time. The TruBend Centre
7030 can process a range of materials such as
aluminium up to 4mm thick, mild steel up to
3mm and stainless steel up to 2.2mm in a
bending length of 3000mm.
The laser-based ACB angle measurement system
enables operators to work with greater precision
and, in conjunction with TRUMPF TecZone Fold,
makes BTS Fabrications more efficient than ever.
www.trumpf.com/en_GB/
NO FALSE STARTS WITH WRAPTITE
The completion of a stunning new Hilton
hotel at Silverstone is another step nearer
and leads the way featuring the superior,
high-performance Wraptite external
airtightness barrier.
The impressive new hotel, located trackside,
overlooks the starting grid for the home of the
iconic British Grand Prix. Facilities include 197
guest rooms, a rooftop terrace and the offer of
race-day hospitality experiences.
KKA Architecture designed the hotel, with
Metclad Contracts appointed as the specialist
envelope contractor for the project.
Wraptite airtightness membrane from the A.
Proctor Group, specialists in supplying highperformance
products to protect buildings, was
selected by Metclad to maximise airtightness and
energy efficiency, perfectly balanced with the
crucial requirements of vapour permeability.
Wraptite self-adhesive breather membrane is
applied externally, quickly and efficiently as part
of the rainscreen system. Incorporating the
Wraptite System helps ensure as-designed
performance. Its inclusion narrows the gap
between as designed and actual energy
performance whilst reducing the likelihood of
possible failures to meet required airtightness
levels. Traditionally air barriers have been fitted
internally. The internal installation of an air
barrier necessitates accommodating building
services such as electrical, lighting, heating and
drainage systems, thereby increasing the gap
between as designed and built. However, the
Wraptite membrane fully bonds externally to
virtually any substrate, requiring no additional
mechanical attachment, seals or tapes to
suppress air leakage around junctions or
penetrations.
The high vapour permeability of Wraptite allows
the substrate beneath to dry quickly and
moisture vapour to escape, and reduces the
likelihood of mould, mildew, condensation, timber
distortion and metal corrosion.
Wraptite is the only self-adhering vapour
permeable air barrier certified by the BBA and
combines the critical properties of vapour
permeability and airtightness in one selfadhering
membrane. www.proctorgroup.com
52 TC FEBRUARY 2022

All You Need to Know About...
EPDS AND PRODUCT
SUSTAINABILITY
Designers and installers of flat roofing solutions are often told what they ‘should’ know about
products and standards. In this ongoing series, Rob Firman, of Polyfoam XPS, looks at
different aspects of flat roofing design and construction and helps to demystify them...
Environmental product declarations, or
EPDs, are internationally-recognised
documents that communicate
environmental impact. They are created in
accordance with applicable standards and should
be independently verified to confirm they meet
those standards. An EPD can be created for
products and services of all types, in all areas of
life, but this article specifically deals with EPDs
as they relate to construction products.
There is increasing demand for manufacturers of
construction products to make EPDs available,
and for products with EPDs to be selected for
construction projects. With that, however, can be
a misconception that simply specifying a product
that has an EPD means a ‘sustainable’ choice is
being made. Is that actually the case?
What standards are construction product
EPDs created in accordance with?
Reporting of environmental impact for
construction products is carried out as described
in EN 15804:2012 Sustainability of construction
works. Environmental product declarations. Core
rules for the product category of construction
products. The standard has been amended twice,
most recently in 2019.
Life cycle analysis, often shortened to just LCA, is
carried out for construction products. The
analysis involves making assumptions about the
environmental impact at different stages of the
life cycle. An EPD is then created, in a standard
format, to describe and report the conclusions so
that designers, specifiers and other construction
professionals can make informed decisions.
The contents of EN 15804 are extensive, but
some of its key aspects are: it
defines parameters that should
be declared and how they
should be reported; it
describes the life cycle stages
that can be assessed; and it
specifies the quality of data
required for reporting.
The full title for an EPD is a ‘Type III
environmental product declaration’. ‘Type III’
refers to the EPD’s environmental data having
been quantified in accordance with the ISO 14040
series of standards. An EPD reports on six
environmental impacts, which are as follows.
• Global warming potential.
• Depletion of the stratospheric ozone layer.
• Acidification potential of soil and water.
• Eutrophication potential.
• Formation potential of tropospheric ozone.
• Abiotic depletion potential.
Is a product sustainable if it has an EPD?
It’s inescapable that processing raw materials,
manufacturing construction products, and
constructing and changing buildings all have an
environmental impact. It’s why people say the
most sustainable building is the one that doesn’t
need to be built.
Minimising the impact of construction projects
starts with using resources as efficiently as
possible. This can be done by questioning whether
new construction is necessary, or if a client’s needs
can be met by reusing an existing building instead.
Left: Rob Firman, Polyfoam XPS.
Depending on the answer to that
question, design and
specification decisions can be
made to support longevity and
adaptability in the built
environment. Product choices that
prioritise the efficient use of resources
over the long term should be the aim.
“EPDs are a tool for
comparing materials
so that product choices
can be made to support
a construction project’s
sustainability goals”
All of this is to say that an EPD does not describe
whether a product is ‘sustainable’ or not, and it’s
important to remember that there’s no such thing
as a ‘most sustainable’ product. EPDs are a tool
for comparing materials so that product choices
can be made to support a construction project’s
sustainability goals.
Over the coming months, we’ll explore the topic of
EPDs in more detail. We’ll look at the different
stages of LCA, and also talk more about how
EPDs can be used to compare environmental
impact. If there’s an aspect of EPDs you’d like us
to look at in a future column, contact the Total
Contractor team or get in touch with us on the
details below.
Contact Polyfoam XPS
www.polyfoamxps.co.uk
@PolyfoamXPS
54 TC FEBRUARY 2022

A2
Insulation
solutions
for flat roofs
Recticel Insulation is an experienced flat
roofing partner, providing innovative and
reliable insulation solutions for flat roof
applications.
Discover the ideal solution for your flat roof
project at recticelinsulation.co.uk

Knauf Technical Talk
U-VALUE CALCULATIONS EXPLAINED
Approved Document L (Part L) of the Building Regulations sets out how energy efficient
buildings and individual building elements must be. But how do you know whether the
build-up meets the required minimum standards? This month, Bradley Hirst, Technical
Services Manager at Knauf Insulation, looks at U-value calculations in more detail.
What are U-value calculations?
U-value calculations measure whether the
proposed build-up will meet the minimum
standards by determining how well it will
prevent heat transfer. They are measured in
W/m²K (watts per metre squared Kelvin) and the
lower the U-value, the more effective the build-up
is. This means less energy will be needed to heat
or cool a space, so a property with high levels of
insulation is more energy efficient.
Knauf Insulation says numerical
calculations (3D U-values) are
highly accurate, so they should be
used for rainscreen façade systems
rather than the simplified method.
Do I need a U-value calculation for every
project?
Not necessarily. Every project must meet the
limiting standards for fabric energy
efficiency, so architects usually
include a specification in their
plans. For insulation, they may list
a product name or the thermal
resistance (R-value) which has been
verified to achieve compliance. If you
follow the specification exactly, you won’t need to
undertake additional U-value calculations.
“If you change any
element, you will need
new U-value
calculations to
demonstrate
compliance”
But you may need to change the specification. For
example, on a rainscreen façade system build-up,
you may decide to improve the building’s fire safety
strategy by swapping combustible insulation for a
non-combustible solution such as Knauf
Insulation’s Rocksilk RainScreen Slab. If you change
any element, you will need new U-value
Left: Bradley Hirst, technical Services Manager at Knauf Insulation. Below: Knauf Insulation Rocksilk(R)
RainScreen Slab is non-combustible making it suitable for use on buildings of any height.
calculations to
demonstrate compliance.
For applications such as cavity walls
or flat roofs on extensions, many
installers draw on experience and use
the same build-up for every project. This
may save time but remember Part L changes in
June 2022, so check with your insulation
manufacturer’s Technical Team that your chosen
build-up meets the new minimum standards.
Are all U-value calculations the same?
How U-values are calculated is set out by BRE’s
BR443 (Conventions for U-value calculations).
There are two common methods: simplified
calculations and numerical calculations (3D U-
values). Which method is used depends on the
application and the accuracy required.
Simplified calculations are best for
straightforward build-ups
with few variables such as
brick and block walls. But
they aren’t recommended for
rainscreen façade systems
because the blanket correction factor doesn’t
accurately represent the system’s thermal
performance.
Instead, contractors and installers should insist
on 3D U-value calculations which consider the
complex interaction between the insulation,
façade, and rail and bracket system. This high
degree of accuracy often identifies solutions that
would have been ruled out by the simplified
method and ensures the thermal performance of
the final building matches its design.
Contact Knauf Insulation
www.knaufinsulation.co.uk
@KnaufUK
56 TC FEBRUARY 2022

ROOF
TUBE
maximise the exposure and make
video content more accessible
www.roof-tube.co.uk
- Build your own channel and
create a new audience for your content
- We can
compile playlists ensuring relevant content
is shown to your target audience
and Safety Equipment
put your business and products in front of
a new audience
(QUITE INTERESTING)
INSULATION FA
ACTS
By QI (Quantum Insulation Ltd)
Non-combustible inverted roof
insulation update
Since September 2019, we have produced 22 of these monthly QI@QI
information articles, with three pieces covering the increasing demand for noncombustible
insulation boards. So, where are we as we enter 2022 and await
the outcome of the consultation on regulation 7 of Approved Document B.
In reality very little changed in the non-combustible insulation board
market in 2021, other than FO AMGLAS® INVATHERM TM being accepted by
the NHBC, as long as the below criteria are met.As the only non-combustible
inverted roof insulation board in the UK market, this is an important step,
NHBC requirements for FOAMGLAS® INVATHERM TM :
• covered by a Water Flow Reducing Layer (WFRL)
‘A1’
or A2’
• that the pedestals have a circular base with a diameter of at least 170mm
and be supported by a rubber underlayment.
• the maximum load indicated in the Product Data sheets is not exceeded.
In the world of warm roofs FOAMGLAS® and ROCKWOOL® continue to be the
only sources of non-combustible roof insulation board, with the penalty of
a greater thickness for a given U-value versus PIR insulation, plus a greater
One ‘grey area’ that was partly cleared up in 2021 was the requirements
for non-combustible insulation on the upstands of a roof on a ‘relevant
with the Ministry of Housing Communities & Local Government (MHCLG)
- now the Department for Levelling Up, Housing & Communities (DLUHC).
Acceptance by the regulators in the other three nations needs to be
The upstand rules for England are that non-combustible insulation
board is required if:
surface.
• the upstand insulation is thicker than 60mm.
• the upstand insulation spans across a compartment wall line.
• the upstand is against habitable space.
Copies of this guidance can be downloaded at:
LRWA-SPRA-Guidance-Note-Changes-in-Fire-Safety-Regs-0621-FINAL.pdf
* a ‘relevant building’ is one where there is a storey at least 18m abov ve
ground level that contains dwellings or institutions or a room for residential
purposes (excluding any room in a hostel, hotel or a boarding house),
student accommodation, care homes, sheltered housing, hospitals and
school dormitories in buildings.
Next month:
For more information contact
andydunn@media-now.co.uk or
jakeroxborough@media-now.co.uk
FEBRUARY 2022 TC 57

Project Focus: PIR
MEETING THE GRADE FOR
THERMAL PERFORMANCE
Recticel PIR insulation has proven to be the ideal solution to ensure two new public
school buildings attained regulation levels of thermal performance.
Charterhouse public school in Surrey is said
to be one of England’s most revered seats
of learning. As part of an expansion at the
site, which opened as a school in the 16th
century, two new buildings designed as boarding
accommodation for students are under
construction. The huge project involves nearly 50
roofs – containing pitches of between 3.55° and
65° – and 60 dormer windows. With this in mind,
an insulation system that was rapid to install and
offered superb thermal capabilities was therefore
essential to meeting the works programme’s
strict time constraints. Recticel’s Eurothane GP
insulation board met both
requirements.
Waterproofing work on the
new school buildings
began in August 2020.
The build-up comprised
a vapour barrier, which
was applied to a
plywood deck, and
breather membrane with a
standing seam. For the
insulation, TSH Architects, in
conjunction with contractor Salmon Solutions and
Recticel, specified 140mm Eurothane GP PIR
insulation board. Despite this high-performance
system’s lightweight composition, it provides a
thermal capability of 0.022 W/mK.
Eurothane GP boards fit easily between roof
rafters to create a superbly flat foundation for a
waterproofing finish. For the Charterhouse
project, the boards were installed across a huge,
2,200m² area. The prevalence of dormer windows
provided an additional challenge, which was
overcome due to Eurothane GP’s easy handling
and cutting properties, ensuring these features
Images: Charterhouse public school in Surrey has undergone a significant expansion.
“The boards were ideal when it came
to selecting an insulation system
which helped the roofing element of
the impressive public school
buildings achieve the required U-value”
were quickly and effectively insulated
against instances of thermal bridging.
Charlie Whitman, Project Manager and Surveyor
at Salmon Solutions, said: “Recticel Insulation
played a significant role in ensuring this vital
project was completed to the agreed timeframe
and to the highest specification. Lightweight and
easy to handle, Eurothane GP insulation boards,
were a pleasure to work with on this project. This
benefit, along with their superb durability and
consistent performance, ensured the boards were
ideal when it came to selecting an insulation
system which helped the roofing element of the
impressive public school buildings achieve the
required U-value.”
Despite the stop-start nature of the works
programme due to coronavirus restrictions and
inclement periods of weather, the Charterhouse
building’s roofs are on track to be fullywaterproofed
by the agreed completion date. This
is in no small part to Eurothane GP’s superb
usability, resulting in a quick and easy installation
that will futureproof these impressive structures
against cold and damp for years to come.
Contact Recticel Insulation
www.recticelinsulation.com/en-gb/home
@RecticelInsulUK
58 TC FEBRUARY 2022

Supafil ® APProved Installer?
knaufinsulation.co.uk/KinetiK
Scan for your secret weapon.

Insulation Updates
Actis Regional Sales
Director and Women in
Construction ambassador
Jemma Harris has been inspiring young women
to reject stereotypes and follow their dreams of
a career in a male-dominated profession.
Jemma (pictured) was speaking to year 11
students at a school in Hull, and shared her own
career path working in two very traditionally
‘macho’ environments – the Royal Navy, where she
worked as a weapons engineer, and construction.
She talked about the additional obstacles she faced
For further info on all these updates and more, visit www.total-contractor.co.uk
TALK INSPIRES YOUNG WOMEN
to get to the top of the career tree – with advice on
how to overcome them. She told them: “It sounds
pretty boring selling insulation, but there’s actually
a lot more to it than that. You get involved with the
whole design and build process in construction and
the eco side of things – saving the planet. However,
I have had to put the hard work in and overcome
many obstacles, particularly as a woman in the
industry that I currently work in and during my
service in the Royal Navy.”
The talk inspired the young women to rethink their
pre-conceived notions of the world of work.
Salamander Street is a mid-market rent initiative that provides high quality affordable homes in the heart of Leith,
Edinburgh. It comprises 199 flats and maisonettes across six storeys constructed over a basement car park.
Responses included: “Jemma’s talk gave us a
chance to show young women that they can do
anything that they actually want to do – that they
don’t have to do the stereotypical ‘girl jobs’, and
that girls are just as good as boys and that
everything should be equal.”
Jemma added: “Diversity and inclusion are always
something industries should strive for. I’d like to
think that, along with other women in the industry,
we are making an impact and difference in
inspiring the next female generation to get involved
in construction.” www.insulation-actis.com
ROCKSILK PROVIDES FIRE SAFETY & THERMAL BENEFITS
It was designed by 7N Architects, which specified Knauf Insulation’s 50mm Rocksilk RainScreen Slab to insulate the ventilated
façade. They chose this product because it met the brief’s two critical performance factors: thermal performance and fire safety.
It is a Rock Mineral Wool insulation slab with a thermal conductivity of 0.034W/mK, so it delivers the required U-value of 0.16 Knauf Insulation’s 50mm
Rocksilk RainScreen Slab was
W/m²K. It is non-combustible with the best possible Euroclass A1 reaction to fire classification and is BBA certified for use in a chosen for Salamander Street.
wide range of build-ups in high rise buildings. This means it complies with Building Regulations in Scotland that restrict the use of
combustible materials on most buildings over 11m. The Salamander Street development was overseen by Cruden Building East with sub-contractor Soundtex
responsible for installing the insulation. It was constructed using an Ancon Brick Restraint System. Ancon has undertaken independent third-party tests to
demonstrate that its restraint system does not require a compression sleeve when used in conjunction with Rocksilk RainScreen Slab under 180mm thick. This
provided a huge saving in labour costs for Soundtex as fasteners are usually inserted into compression sleeves by hand. Throughout the build, Knauf Insulation’s
Specification Team attended regular project meetings and conducted site visits to check the quality and progress of installation. www.knaufinsulation.co.uk
ACTIS SHARES FOR SHARED SPACE
A new community building in Aberdeenshire, to which Actis donated more than 400m² of insulation
materials, has recently opened its doors to a range of groups as part of a wider campaign to tackle
social isolation.
The 3,500ft² timber frame and blockwork Aboyne and Mid-Deeside Community Shed is part of the growing
Men’s Shed movement – although this one is non-gender-specific – and is one of more than 400 such A new community building in Aberdeenshire, to
which Actis donated more than 400m² of insulation
enterprises across the UK. Actis was one of a number of companies offering their products or services free of
materials, has recently opened its doors to a range
charge to help reduce the cost of the £450,000-plus project, as part of its policy of giving something back to of groups as part of a wider campaign to tackle
social isolation.
the communities in which it operates. The first two community groups began using the facility in autumn
2021. More than 80 people have signed up to use the workshop element of the shed, which offers pursuits such as woodwork, metalwork, welding, car
maintenance, small appliance repair, electronics projects and amateur radio. Rotary club member Stuart Robertson, one of the driving forces behind the
shed’s creation, explained: “Our photovoltaics are generating away on the roof and with the help of Actis insulation products the building should be
relatively inexpensive to run.” www.insulation-actis.com
60 TC FEBRUARY 2022

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Article
Van Theft
FIVE WAYS TO KEEP THIEVES AT BAY
With van theft set to double over the next decade, Comparethemarket.com reveals the areas
and models most at risk, and offers up five top tips to protect your van and its contents.
Comparethemarket.com has predicted
future levels of van theft could double in
the next decade, after research found an
81% increase from 2015 to 2019.
The research also highlights the makes and
models of vehicles that are most at risk and the
most frequently stolen contents from a break-in.
During 2015, 12 vans were being stolen each day
across the country, rising to 35 vans during 2021.
Comparethemarket.com predicts that the level of
theft could reach as high as 56 thefts per day by
2030, equating to over 20,000 stolen vans
annually.
Regional theft rates
The lowest levels of theft have been reported in
the North of England, followed by West Midlands,
South West of England and Wales. Unsurprisingly,
Greater London has the highest rate. This area of
the UK saw 1,504 thefts in 2019, rising to 2,033
in 2021, with a predicted 3,827 by 2030.
The van models most at risk across the UK
During 2019, the vans most at risk were Mercedes
Sprinter models. This remains the same in 2021,
as predictions show the Mercedes Sprinter 313
CDI will be the most stolen van model, increasing
by 44 annual thefts in just two years.
Stolen items
Tools, equipment and personal items are most
commonly stolen from break-ins. Nearly 67% of
break-ins include having tools stolen, and
research shows that only 1% are ever recovered
due to their high resale value, leaving a
devastating impact on tradespeople and their
ability to do their job.
Visit: www.comparethemarket.com/vaninsurance/content/van-theft/
for the full report
and statistics.
FIVE TIPS TO AVOID VAN THEFT
Motoring experts at Comparethemarket.com
have made the following suggestions to keep
your van, and its contents, as safe as
possible amid rising levels of theft:
1Lock your van Simple? Yes, but
remembering to always lock your van is
the first and most essential tip to
protecting your van and its contents. Consider
adding extra security, such as a slam fitted lock which automatically locks the door when it’s shut.
2Add your own safety measures Although a more expensive option, adding a GPS tracker into
your van is worth it, as the police can keep track of your vehicle if it’s stolen, giving you a
much higher chance of getting it and your belongings back. Consider labelling your tools with
a UV pen too, this appears invisible to the naked eye but can be identified by police if your stolen
tools are recovered. Lastly, keep an inventory of your tools – write down the makes and quantities
you have so in the worst case, you can quickly identify what’s been stolen.
3Store valuables safely Don’t leave your valuables on display. If your wallet is on show, keys
visible and tools sprawled, you have a higher chance of thieves peering in. Removing your
valuables each evening is the safest option. However, if your belongings such as your tools
need to be kept in the van, consider investing in a safe that’s been tested and recognised against
crime.
4Think twice about parking Parking in a place that will deter thieves will likely lower your
chances of a robbery. We recommend parking so that your doors are inaccessible, i.e. against
a wall or fence, blocking direct access to them. This will help avoid ‘peel and steal’ – the
common tactic where a door is wrenched off without the use of any tools. Think sensibly and park in
a guarded, busy and well-lit area, with CCTV around whenever possible.
5Insurance A van
insurance spokesperson
at Comparethemarket.com
says: “Having insurance won’t
prevent your personal items,
tools or van from being stolen,
but it can make the aftermath
less stressful. It is worth
spending the time understanding
what your insurance covers, if you don’t already know, or before you take out a new policy. This way
you can be confident that your van and your contents are covered in the worst-case scenario.”
62 TC FEBRUARY 2022

36V BL MOTOR.
230MM WHEEL.
88MM CUT.
TWIN 18V LXT CORDLESS POWER CUTTER: DCE090
Max. Cutting Depth 88mm, Bore 22.23 mm, Max Wheel Thickness 3.0mm, Net weight 5.6 - 6.3kg, Electric brake, Soft
start, LED job light, Brushless motor, Powered by two 18V Li-ion batteries in series to supply energy to the powerful 36V
DC motor drive system, Overload indicator lamp, Water supply kit can be connected, Battery cover protects battery from
water during wet cutting, Lock-off button for safe operation, Active Feedback Sensing Technology (AFT): Shuts down
the tool if the rotation speed suddenly slows down.
makitauk.com/product/DCE090T2X1

Updates
For further info on all these updates and more, visit www.total-contractor.co.uk
CONTROL AND COMFORT ON SITE
Snickers Workwear says dressing right and
staying comfortable when it’s cold and wet
demands the best in Climate Control working
clothes.
The company points out continuous work in cold
weather produces body heat and sweat, but
when your workrate slows, the sweat cools and
you’ll start to feel cold and damp. The solution,
the company says, is Snickers Workwear’s bodymapping
Mid-layer working clothes that deliver
advanced ventilation to control and regulate the
heat from your body.
Snickers Workwear’s body-mapping Mid-layer options.
Made to last from sustainable fabrics such as
micro fleece and recycled polyester, they’re great
for both work and leisure activities. These
garments insulate and keep heat around your
body by effectively creating an air pocket inside
your clothes.
They complement Snickers Workwear’s FlexiWork
Base-layer undergarments that combine
sustainable animal-friendly Merino Wool with
polyamide for warmth and ventilation, as well as
the Top-layer or ‘outer shell’ AllroundWork and
Flexiwork Weatherproof Jackets and Trousers that
will keep you warm, dry and comfortable all day
long. www.snickersworkwear.co.uk
CORDLESS SCREWDRIVER ADDED TO LXT RANGE
Makita UK has introduced the DFR551 18V LXT Brushless Auto Feed Screwdriver to its LXT platform. Powered by Makita’s
18V LXT battery platform, the DFR551 delivers on both output and ease of use, maximising on-site efficiency.
With extreme speed and precision, the DFR551 is ideal for repetitive fixing tasks and rapid screw driving tasks. Trigger activated
for easy use and complete control, it offers a no load speed of up to 6,000rpm and the screw feeding mechanism has been
designed to reduce screw fall and ensure durability. With no power lead restricting movement, operators have maximum flexibility
to use the DFR551 anywhere on site. The DFR551 also features Makita’s brushless motor which means that, as there are no brushes in the motor causing
friction, no energy is lost through heat production. As a result, battery run time is extended – reducing the need to regularly stop to recharge or replace
batteries and improving onsite productivity. In addition, the DFR551 features Push Drive Technology. This means that the motor only rotates at full speed
when the screw is pressed against the workpiece, further reducing power consumption and extending battery run time. Kevin Brannigan, Marketing Manager
at Makita, said: “With our LXT battery platform at its core, the DFR551 18V LXT Brushless Auto Feed Screwdriver offers the output needed to tackle any task
with ease, as well as the safety and improved usability benefits of cordless. With over 270 products in Makita’s LXT range, professionals can easily switch
LXT batteries between power tools, outdoor power equipment and accessories depending on the task at hand.” www.makitauk.com
A STEP-UP IN WINTER COMFORT AND SAFETY
The new Prime GTX hi-tech safety boot from Solid Gear incorporates some of the most advanced
technical features in safety boot design.
With a focus on comfort and S3 safety, Solid Gear’s new and athletic-looking Prime GTX boots are
probably the most comfortable and robust footwear you can get for the winter. This hi-tech safety
footwear will keep your feet dry so you can work comfortably in the roughest conditions on site – with
effective protection all day long. Solid Gear has combined a Vibram outsole with a full and lightweight
EPTU mid-sole to prioritise top-line comfort and stability. The sole combines excellent durability with oiland
slip-resistance and outstanding grip on snow and ice – even at low temperatures. What’s more, the GTX combines ergonomics with a torsional
rigidity for safety that are enhanced by the durable microfiber upper that has a waterproof and breathable GORE-TEX membrane. Comfort and fit are
delivered to the highest standard with the GORE-TEX Stretch Technology in the upper which, together with a high heel counter and the snug BOA Fit
System, make this boot a unique experience in safety footwear protection. www.solidgearfootwear.com
64 TC FEBRUARY 2022

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Updates
For further info on all these updates and more, visit www.total-contractor.co.uk
MAKITA IS LIGHTING THE WAY ON SITE
Makita UK has added two new cordless tower lights to its wide range of lighting solutions. The DML813 and DML814 are
the perfect additions to any jobsite during the darker months, providing the illumination needed for safe working.
Having fewer daylight hours to work with is one of the biggest challenges that tradespeople face during the winter months as,
without proper light, the same level of productivity simply cannot be achieved. However, with Makita’s new cordless tower lights,
professionals can keep working safely for longer.
The DML813 and DML814 18V LXT Cordless Tower Lights feature 12 daylight white LEDs that deliver up to 3,000 lumens and
mimic natural daylight for maximum user visibility. With three settings to choose from, professionals can easily adjust the output
to suit the working conditions, and both models include a memory function that will turn the light on in the last setting used, for
increased efficiency. What’s more, the DML814 features three light heads that can be pivoted independently, which is ideal when
larger work areas need illuminating.
Both the DML813 and DML814 are height adjustable (from 125-224cm), making them suitable for use at ground level and at
height. The tripod stand is easily operated using a lock-release button – and it can be secured to the ground with screws or pegs for maximum stability. At
the end of the day, the DML813 and DML814 can be neatly folded up for simple storage and transportation.
The DML813 and DML814 have also been specifically designed for use on construction sites and are IP55 certified for weather and dust resistance. They
also feature a padlock hole for the battery, to help protect against theft.
Kevin Brannigan, Marketing Manager at Makita, said: “At Makita, we are dedicated to ensuring that professionals have access to the tools that they need
to work productively and efficiently – and the DML813 and DML814 will help them to do just that.” www.makitauk.com
FLEETS AHEAD ON SUSTAINABILITY
MKM Building Supplies has invested in six IVECO compressed natural gas (CNG) HGVs, as part of
its wider ongoing commitment to sustainability.
The initial order of CNG trucks will bolster the existing delivery fleets of MKM’s branches in Newark,
Bishops Auckland, Warrington and Crewe. The first two CNG HGVs were delivered to MKM’s Newark
branch earlier this month (25th November).
“The new vehicles will not only further strengthen the
CNG is made by compressing natural gas (methane) down to less than 1% of its volume, creating a fleets but also serve as an exciting testbed for the impact
of alternatively fuelled vehicles on our wider fleet”
safe, sustainable and non-toxic fuel solution. This environmentally friendly fuel improves air quality by
emitting less NO ²
and Particulate Matter as well as reducing C0 ²
by 95% when operating on Bio-CNG versus Euro VI equivalent Diesel. It is also
significantly quieter, just 71 dB(A) (Piek Quiet Truck) when running in Silent Mode. Bio-CNG is cleaner, more sustainable and more cost effective for
fleets.
The purchase of the six CNG-fuelled HGVs from IVECO further strengthens MKM’s relationship with the vehicle manufacturer, who supply most of the
existing vehicles in MKM’s 240-strong fleet. The new vehicles come fitted with an Atlas lorry mounted crane, maximising the versatility of the HGVs.
Shane Thompson, Head of Transport at MKM Building Supplies, said: “The delivery of the first six sustainable vehicles in the MKM fleet is an important
step forward for the business. The new vehicles will not only further strengthen the fleets of Newark, Bishops Auckland, Crewe and Warrington, but will
also serve as an exciting testbed for the impact of alternatively fuelled vehicles on our wider fleet.
“Investing in sustainable HGVs has long been a priority for MKM, and as a business we’ve thought long and hard about what a mixed fleet should look
like. We chose CNG not just because of its obvious benefits in terms of carbon reduction, but also because of the existing infrastructure which makes
such an investment viable at scale. With nine CNG fuelling stations currently active in the UK, including one opposite our Newark branch, and more to
follow in the next few years, our CNG vehicles have access to a robust fuelling network.” www.mkmbs.co.uk
66 TC FEBRUARY 2022

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