underlay

What is a breather membrane ? Vapour permeable breather membranes protect against wind, insects, dirt, weather penetration whilst insulating your property. Installed to the outer side of the insulation, over or under the counter-battens on a pitched roof, breather membranes allow water vapour to escape from inside a building. Often without the need for ventilation. Why do we need one...

Edilians’ technical support receives many interesting and diverse questions. John Mercer, Technical Roofing Consultant, has answered below some of the more common roofing questions. Can I use tiles below the manufacturer’s minimum recommended roof pitch? The short answer is usually no. Using tiles below their minimum recommended roof pitch increases the risk of water ingress through the tiling, which in...