Ångbroms Bison

Steam brake Bison - P-labelled steam brake for wall and roof construction

The Bison vapour check is a high-performance solution to enhance water vapour control and air sealing in building structures. This P-marked vapour barrier is placed on the warm side of the wall or roof structure and is designed to work in harmony with products such as the Windbreak and DiffTak range. With an optimum balance between diffusion tightness and the ability to allow building moisture to breathe out, the Bison vapour barrier is ideal for creating an airtight but moisture-tight building environment, where the risk of mould and moisture-related damage is minimised.

• P-marked vapour barrier for use on the warm side of the structure
• Provides effective air sealing and controls water vapour ingress
• Compatible with Wall Wind Barriers and DiffTak/DiffTak 175 Ceiling Wind Barriers
• More diffusion-tight than Wind Barriers but not as a traditional air and vapour barrier
• Favours drying out of building moisture without trapping moisture