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..

Back to components

Force Line 4.0 Capsheet

Force Line 4.0 is a self-protected, polyester reinforced elastomeric bitumen waterproofing membrane used as a capsheet in a single or multi-layer roof waterproofing system.

View Technical Downloads

Systems in use

View all systems