Steam brake Bison

Bison vapour control layer - Effective vapour control layer protection solution

The Bison vapour barrier is a high-quality solution for managing water vapour and air sealing in building structures. Optimally designed for use on the warmer side of a wall or roof structure, it offers excellent protection while allowing any building moisture to breathe out. With its unique diffusion properties, Bison vapour barrier helps to keep the structure dry without risking moisture damage, making it an ideal choice for a sustainable and safe construction environment.

• P-marked vapour barrier for use on the warm side of wall or roof constructions
• Perfect for air sealing and water vapour control
• Compatible with Wall Wind Barrier and Roof DiffTak/DiffTak 175
• More diffusion-tight than a wind barrier, but not as tight as a classic air and vapour barrier
• Allows building moisture to dry out due to diffusion properties
• Builds airtight but vapour-open to avoid trapping moisture