Non-Breather Membranes
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Cromar Alphachem Liquid Mortar Tone – Black 5L
£19.99 Incl VAT £16.66 Excl VAT Add to basket -
Everbuild 503 SBR Bond – 5 Litre
£22.70 Incl VAT £18.92 Excl VAT Read more -
3m x 3m Twinwall 10mm Polycarbonate Lean to Roof Kit, Clear
£947.84 Incl VAT £789.87 Excl VAT Read more -
Evo-Stik Liquid Nails Solvent Free – Buff 290ml
£4.99 Incl VAT £4.16 Excl VAT Read more -
Hambleside Danelaw TV15/4 Tile Vent
From: £25.99 Incl VAT £21.66 Excl VAT Select options This product has multiple variants. The options may be chosen on the product page -
Timco Tape Measure
From: £7.99 Incl VAT £6.66 Excl VAT Select options This product has multiple variants. The options may be chosen on the product page
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.