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Vapor-Bloc SA

Self-Adhesive Vapour Barrier Membrane

Product Description
Installation and
Technical Literature

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. 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.


  • 48” wide roll provides increased coverage over steel decks 
  • SBS modified membrane can be applied in temperatures as low as –12°C
  • Excellent adhesion to prepared substrates of steel decks, gypsum board, concrete, plywood
  • Excellent compatibility with Bakor adhesives and air barrier membranes
  • Self adhesive, no flame required



Data Sheets

Vapor-Bloc SA Data Sheet Download PDF      

SDS Sheets

Vapor-Bloc SA SDS Sheet Download PDF