ARC Cavity Stop Sock restricts the spread of smoke and flames within the cavity of external masonry walls. It is ideally suited for providing a cavity barrier within the external wall cavity, in line with a separating wall or floor as specified in Approved Document B, and for closing the cavity at eaves level.

• Up to 4 hours fire integrity


• Horizontal and vertical options


• Specified in terraced, semi-detached, apartments and major projects


• Meets requirements of Robust Detail Part E and Approved Document B


• Maximum cavity width available: 300mm


• Easily installed with compression fit; no mechanical fix is required


• Third-party certificated by Certifire