Vapor-Bloc® SA is a self-adhered vapour barrier membrane consisting of an SBS rubberized asphalt compound which is integrally laminated to a blue cross-laminated polyethylene film. The membrane is specifically designed to be self-adhered to a prepared substrate.
Vapor-Bloc® SA is a self-adhered vapour barrier membrane designed to be adhered directly to roof decks. Ideal application surfaces include steel decks, gypsum board and plywood or certain insulation panels prior to the application of finished roof coverings. The main function of Vapor-Bloc® SA is to serve as a full coverage vapour barrier and secondary waterproofing layer in the composition of roof assemblies.