Hambleside Danelaw Double Pantile Vent TV15/2 - Terracotta (Box of 5) 
Everbuild Exact Gap Foam - 750ml 
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Timco Chalk Line Set 
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Klober Double Pantile Vent - Brown KG9858-3-0247 (Box of 10) 
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Bond It PVA & Adhesive Sealer - White 500ml 
OX Pro Heavy Duty Wrecking Bar - 24" 
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Code 8 Cast Lead - 240mm x 6m 
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Siroflex SX Contractors LMN Silicone OAK 300ml 
Samac Silicone Bronze Nails - 1kg (31mm x 1.8mm) Non-Breather Membranes
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Non-Breather Membranes
Non-breather membrane, also known as a high-resistance membrane, is a type of roofing felt that does not permit vapour through. These are specially made for “cold roof” houses, which have insulation between the rafters. In these sorts of houses, a non-breathable membrane would be impractical.
This is because in a cold roof house the loft or “roof void” is colder than the house below, rather than at a similar temperature. This is popular in places for instance with heavy snow, because it helps prevent the formation of ice dams on the edges of roofs. This is because the warm roof will melt the snow into water, which will build upon the colder edges of the roof and refreeze. Cold roofs will leave the snow in place till it melts alongside the snow on the edges of the roof.
At ERoofing, we stock high-quality non-breather membranes from brands like Cromar. Don’t forget roof ventilation is even more important in houses with non-breather membranes. You can see our selection of top felt vents here.
