Difftak Bison

Bison DiffTak - Reliable P-labelled Underlayment Roof

Bison DiffTak is a P-labelled, diffusion-open and penetration-proof underlay roof using the latest Monolithic technology. With an installation on top of the rafters directly on the insulation, no air gap is required. It protects the roof structure from the elements, and its material also allows internal moisture to escape, while being water and airtight from the outside. The material's ability to manage vapour transport helps prevent moisture and condensation problems. Its low weight and large roll area facilitate easy and quick installation. Bison DiffTak offers a robust solution for roofs that require extra protection and durability.

• Diffusion-open and penetration-proof
• Easily installed directly on the insulation, without the need for an air gap
• Effectively protects against rain, snow and wind
• Enables internal water vapour to be transported out, protecting against moisture and condensation
• Lightweight and large roll area for quick installation
• Also known as Diffusion-open underlayment, Diffusion-open underlayment