Designed to block fire and smoke, the ARC Cavity Stop Sock Fire Barrier fits securely in external masonry wall cavities. Suitable for vertical or horizontal use, it meets the requirements of Approved Document B.  With a fire rating of up to 4 hours and built from non-combustible rockfibre mineral wool, this barrier enhances building safety. Its 1200mm length ensures wide coverage, helping to close cavities at eaves level and contain fire spread within the cavity space.

Key Features

Length: 1200mm

Insulation: Non-combustible rockfibre mineral wool

Thermal conductivity: 0.037W/mK

Fire Rating : 4hrs with EN1366-4 of Test standard

Orientation : Suitable for vertical or horizontal cavities

Datasheet