Vapor Retarder SA 31

Vapor Retarder SA 31 is a self-adhesive vapor retarder/air barrier

Vapor Retarder SA 31 is a 31 mil (0.8 mm) thick self-adhesive vapor retarder/air barrier for use within Sarnafil® and Sikaplan® insulated roofing systems. Vapor Retarder SA 31 can also serve as temporary roof protection in areas limited to light construction traffic. It can be left exposed for up to two (2) months.

  • Roll width specifically designed to allow the side lap to align with the top flutes of most structural steel decks, reducing waste and maximizing coverage
  • Polyethylene facer accepts approved urethane adhesives for insulation attachment