Code 4 Cast Lead - 600mm x 3m Non-Breather Membranes
Best Sellers
-
Ronseal Ultra Tough Mattcoat Clear Varnish – 750ml
£19.99 Incl VAT £16.66 Excl VAT Add to basket -
Ronseal Anti-Condensation Paint – Matt White 750ml
£18.99 Incl VAT £15.83 Excl VAT Add to basket -
Timloc Mini Castellated Tile Vent Red (Box of 14)
£279.86 Incl VAT £233.22 Excl VAT Read more -
Samac Aluminum Slate Straps (Tingles) – 150mm
From: £7.49 Incl VAT £6.24 Excl VAT Select options This product has multiple variants. The options may be chosen on the product page -
Ronseal 6 Year Anti Mould Paint – White Silk 2.5L
£31.99 Incl VAT £26.66 Excl VAT Add to basket -
Timloc Double Roman Tile Vent Brown (Box of 6)
£119.88 Incl VAT £99.90 Excl VAT Add to basket
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.
