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Envirotile Roof Underlay Membrane - Length 25m x Width 1.3m

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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. - 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
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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 B.R.E. and Exova certified and is great 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 anti-tear in normal use. The thermal reflectivity of the material is made 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.

Pack QuantityEach
Width1.3m
Length25m
ColourSilver
BrandEnvirotile®
EAN Number5059688175970
DD CEN/TS 1187 :2012 Test 4,
B.R.E. Tested

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Frequently asked Questions

Eurocell fascia boards are designed to be user-friendly for confident DIYers. However, because installation involves working at height and ensuring proper integration with guttering and soffits, many customers choose a professional installer for safety and the best results. Read our installation guide to learn more and check the documentation for each product to ensure manufacturer guidelines are followed. 

Our uPVC fascia boards can last 20-30 years. They’re resistant to rot, warping, and weather damage, and require minimal upkeep. For your peace of mind, we offer a 20-year guarantee against cracking, warping or discolouration.

To measure for fascia boards, simply measure the length of the roof edge where the boards will be fitted. For full replacement, also measure the height from the bottom of the rafters to just under the roof tiles. Don’t forget to account for joins, corners, and end caps, and it's always smart to add a little extra to allow for cuts and adjustments.

Capping boards (also known as ‘cap-over’ boards) are thinner and designed to be fitted over existing timber fascias that are still in good condition. Full replacement fascia boards are thicker, stronger, and used when replacing old timber completely. If the existing timber is damaged or rotting, full replacement is the way to go.