Steam brake Bison

Bison vapour retarder for wall and roof structures

The Bison vapour barrier is a revolutionary product for those who want to create airtight yet vapour-permeable wall and roof structures. It is specifically designed to improve airtightness while controlling water vapour, making it ideal for use on the warm side of the structure. With its balanced diffusion density, vapour control layer facilitates the drying out of any building moisture, thus preventing moisture from being trapped in the structure. This property makes it particularly beneficial for use in buildings such as holiday homes or seasonal homes, where heating is not continuous. With robust technical specifications such as high tear strength and tensile strength, the Bison vapour barrier ensures a durable solution for a wide range of construction projects.

• P-marked, controls water vapour and airtightens wall and roof structures
• More diffusion-tight than windbreaks, but allows building moisture to dry out
• Ideal for structures requiring forgiving and 'breathable' properties
• Suitable for holiday homes or seasonal dwellings with periodic heating
• Weight: 130g/m2, Length: 50 m, Width: 1.4 m
• Water density: approx. 140x10³ s/m, sd value 4 m
• Tear strength: 195 N, Elongation at break: approx. 50%
• Tensile strength: approx. 200 N/5 cm