Description
SA Vapour Barrier Membrane - Flat Roof Barrier
SA VCL is a vapour control layer. It is a cold applied, self- adhesive membrane with a modified bitumen base, glass fibre reinforcement and an integrated aluminium foil face.
A Vapour Control Layer, or VCL membrane for short, is a plastic layer that restricts the flow of warm, moist air from inside a building into the fabric of the building.