- Size: 1.3m x 25m
- Roof area coverage: 32.5m²
- Suitable for most types of roofing structures, i.e. cold roof, warm roof & solid roof
- Premier HR fireproof protection underlay, Exova fire tested
- For use in all zonal areas 1-5
- BRE Tested
Product description
Envirolay roofing underlay is the essential component for a full new build or re roof to ensure compliance with BS 476-3. It is a type HR underlay and roof space ventilation is required at both high and low level.
Envirolay is BRE and Exova certified 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 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.
Envirolay is BRE and Exova certified 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 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.
Technical specifications
BS:ENISO 11925-2:2010
DD CEN/TS 1187 :2012 Test 4
75% Recycled Material
DD CEN/TS 1187 :2012 Test 4
75% Recycled Material