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Guidance on using vapour control layers (VCLs) to reduce air
leakage, maximise thermal performance and prevent harmful
condensation is now contained in a new brochure from
building membranes specialist Icopal. |
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guide details how high-performance VCLs, specially designed
for use in insulated metal sheeted and single-ply membrane
roofs and marketed under Icopal’s Monarflex brand, can
simply and cost-effectively help with these three elements. |
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In addition, they can help
specifiers and contractors meet the requirements of Part F
of the Building Regulations and BS 5250:1989 Code of
Practice for the control of condensation in buildings. |
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Monarflex multi-layer VCLs are
manufactured from virgin polyethylene with built-in rein-forcement
grids of HDPE. Some also feature a later of aluminium foil
for even higher water vapour resistance. |
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The reinforcement grids give
great strength and tear resistance, producing membranes
which are stable when laying and during the sheet or spacer
fastening process. They are also thermally stable from -40ºC
to +75ºC, which ensures they retain their integrity when
installed or used in extreme temperatures. |
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The Monarflex VCL product range
ensures they are suitable for a wide variety of roof types
and building uses ranging from buildings with low to medium
humidity to those with high humidity such as textile plants,
swimming pools and leisure centres. BBA-approved Reflex 275
comes in at the top end, being a five-layer, exceptionally
high performance polyester-reinforced polyethylene membrane
with aluminium foil for use in high humidity areas. |
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Monofilament 250 and Monarflex
Netofol are both three-layer polyethylene reinforced
membranes and for use in areas of low to medium humidity but
the former is slightly higher performance and is available
in two roll sizes. |
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As well as the products
available, the guide also contains information on
accessories, de-sign and installation (including sealing)
for metal roofing and cladding and single-ply mem-brane
roofs, and site work. |
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For further information on
Icopal Ltd see
www.roofinfo.co.uk/icopal |
