Insulate Magazine Issue 10
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<strong>Insulate</strong> Debate<br />
The only independent insulation industry trade magazine<br />
It combines the benefits of traditional roofs and<br />
off-site roofs while minimising the downsides of<br />
both, constructed off-site to tighter tolerances<br />
and higher standards.<br />
Modular Systems Calling Time<br />
On Traditional Building Techniques<br />
Off-site construction fits the current requirement for houses being built with speed,<br />
cost-efficiency, the environment - and most importantly - quality, in mind. With the<br />
UK’s housing crisis requiring urgent address, building processes such as this could be<br />
key to property supply keeping pace with demand. Indeed, a study by the Modular Building<br />
Institute found modular construction techniques mean a building can be completed ready for<br />
occupation 50% faster than using traditional on-site methods.<br />
Each panel combines breather membrane, counter<br />
battens and roof timber which are prefabricated<br />
offsite in one insulation product. The panel<br />
edges are rebated to form a shiplap joint, therefore<br />
once installed and fixed, the potential air gaps<br />
and cold bridges found in a traditional roof are all<br />
but eliminated.<br />
All this performance within a single system makes<br />
life simpler for specifiers and architects. The versatile<br />
design allows for a much faster installation<br />
with the potential for a standard-style roof to be<br />
watertight within just four hours of the product<br />
arriving on site. Available in five different lengths<br />
up to 6.5m, L-Ments panels can be lengthened<br />
beyond this by joining on an intermediate purlin.<br />
Off-Site More than Speed<br />
The growing popularity in prefabricated<br />
solutions isn’t solely based on speed,<br />
however. Off-site manufacture makes for safer<br />
on-site working conditions as it requires<br />
fewer staff and less machinery to install. Modular<br />
solutions can also reduce the potential impact<br />
of bad weather on build times, whilst faster<br />
weatherproofing of structures will reduce delays<br />
for internal trades.<br />
The off-site option offers greater flexibility,<br />
providing buildings that can be reconfigured more<br />
easily to suit changing requirements. Another major<br />
benefit is reduced waste, as according to a UK<br />
Waste & Resources Action Programme (WRAP)<br />
report, off-site construction generates up to 90%<br />
less discarded material, emphasising its cost-effectiveness.<br />
Innovative Solution<br />
The insulation industry is constantly looking for<br />
innovative solutions to ensure buildings comply<br />
with regulations. A recent addition to support the<br />
off-site approach is Recticel’s innovative L-Ments;<br />
the pioneering room-in-a-roof system which can<br />
be installed making the building watertight in a<br />
matter of hours rather than days or weeks.<br />
The unique system applies the ethos of ‘Modern<br />
Methods of Construction’ to traditional insulation<br />
solutions. Rather than cutting insulation boards<br />
to fit between the timbers or trusses of a pitched<br />
roof which can lead to thermal bridging and<br />
lower performance, a panel is manufactured on a<br />
PIR production line incorporating structural<br />
timbers within the panel.<br />
Once produced, they are transported to site as a<br />
ready-to-install element with breather membrane<br />
and counter battens already installed. Its PIR insulation<br />
core offers a thermal conductivity of only<br />
0.023 W/mK, making it among the most efficient<br />
insulation products available.<br />
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www.insulatenetwork.com<br />
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