Cetified B Corporation

We are celebrating two years of being a B Corporation!

Read about our journey so far, and our plan to be net zero by 2040..

A stabilised polyester reinforced polymer modified bitumen, Alpa®-mix, waterproofing membrane. BBA certified for use as a single-layer roof waterproofing or as part of a built-up system on flat and pitched roofs with limited access in exposed and protected roof specifications, including zero fall applications. Please refer to the data sheet for full product information.

View Technical Downloads

Systems in use

View all systems