The Damex FR Non-Combustible Damp Proof Course (DPC) & Cavity Tray is a unique, high performance, non-combustible fabric with a waterproof high temperature polymer coating to both sides, achieving A2-s1,d0 to EN13501-1:2018. Damex FR has been designed to meet the toughest standards but with the installer in mind. From our superior flexibility in cold working conditions, easy to make site formed corners, our unique installation method or our fire rated ancillary components.