Duo Sock Cavity Fire Barrier 40-50mm x 1.2mtr (50mm Cavity)

DS100 – Duo Sock Cavity Fire Barrier – 1 Hour

Widely used, practical on-site solution to close voids at junctions. Designed to prevent fire penetration, aid reduction of sound transmission and help maintain the thermal integrity of the insulation requirements under Building Regulations through wall cavity in both masonry / block and brick timber frame and steel cavity wall structures. Duo Sock, Firesock is a 1.2 m length of semi rigid mineral wool slab fully encapsulated in polythene sleeves, supplied winged.