List of featured suppliers of ROOFING UNDERLAYS PITCHED ROOF MEMBRANES AVCL Air and Vapour Control Layers on Building Products Index
Roofing underlays are materials that are installed beneath the roof covering to provide an additional layer of protection against water, wind, and dust. Pitched roof membranes are a type of roofing material that are designed to be installed on sloped roofs to prevent water infiltration. AVCL air and vapor control layers are a type of material that is used to control the movement of air and water vapor through the building envelope, helping to prevent moisture buildup and control energy costs.