ARC CSS125 - Cavity Stop Sock to Suit a 125mm Cavity 135 x 120 x 1200mm (Bag of 15) by ARC Building Solutions

The ARC Cavity Stop Sock is designed to restrict the spread of smoke and flames in external masonry walls, providing effective fire protection in cavity wall construction. Measuring 135 x 120 x 1200mm, it fits 125mm cavities and is supplied in bags of 15 for straightforward site installation.

Providing up to four hours of fire integrity, it can be installed horizontally or vertically. The product meets the requirements of Robust Detail Part E and Approved Document B and is third-party certificated by IFC, ensuring dependable fire performance across both residential and commercial projects.

Key facts:

• Up to 4 hours fire integrity
• Horizontal or vertical applications
• Meets Robust Detail Part E and Approved Document B
• Third-party certificated by IFC

The ARC Cavity Stop Sock fits securely within the cavity without mechanical fixings, providing consistent fire safety at separating walls, floors and eaves level. It acts as a reliable cavity barrier that supports compliance and long-term protection on site.

IMPORTANT INFORMATION - Fire Socks are sent on a two day delivery and may not arrive next working day

Installation info:

Insert the sock into the cavity at the required position. Compress firmly so adjoining sections butt together, forming a continuous, gap-free fire barrier.