Powerlon SupaPerm 100 is a house wrap breather membrane designed to act as an air barrier and provide a breathable layer for timber frame walls, profiled metal roofs and composite SIPs too. The CE certified 100gsm breather membrane is water resistant to BS 4016 and offers high tensile strength for ease of installation and durable coverage. Manufactured from a non-woven single-layer fabric, the product gives high water vapour permeability and Powerlon SupaPerm 100 can be custom printed to whatever you wish. Nail-tear resistant, Powerlon SupaPerm 100 is a favourite amongst contractors and self-builders to provide long term protection for the building envelope and its frame. Powerlon SupaPerm 100 House Wrap Breather Membrane Specifications Length: 100. Width: 1.6m. Weight: 100gsm. Colour: black.