Envirolay insulated fireproof roofers underlay is the next generation of tough and environment friendly high performance pitched roofing underlay. It is a type HR underlay and roof space ventilation is needed at both high and low level. BRE certified, it meets BS EN 13859-1...Read More
Envirolay insulated fireproof roofers underlay is the next generation of tough and environment friendly high performance pitched roofing underlay. It is a type HR underlay and roof space ventilation is needed at both high and low level.
BRE certified, it meets BS EN 13859-1 and BS EN 12310-1 and is suitable for both warm and cold roof, supported and unsupported, ventilated roof constructions throughout the UK.
The flame retardant woven glass fibre cloth and aluminium foil weave is vapour permeable and has a high nail tear resistance which makes it untearable in normal use.
The thermal reflectivity of the material is designed to reduce the convection and radiant heat loss through the roof.
In the summer months it reduces heat entering into the building, but also helps to maintain the heat in the building during the winter.
Properties
Length : 30m.
Width : 1m.
Weight : 15kg.
Nail tear strength :
(EN12310) - 190N (MD).
(EN12311) - 340N (CD).
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