100mm Cav Frstop 1hrfr Cavity Stop Sock 1200mm

The ARC Cavity Stop Sock is engineered for compression fitting within a masonry cavity closer during the progression of brick and block work, eliminating the need for mechanical fixing. It's crucial to ensure that butt joints are tightly fitted with no gaps remaining. The barrier must completely fill the cavity from brick to block, with any cavity insulation cut back as necessary. The Polythene Encapsulation provides on-site weather protection, and it can be trimmed away without compromising the barrier's performance.