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

About this product

A cavity stop sock that restricts the spread of smoke and flames through the cavity of external masonry walls. It fits a 125mm cavity and is installed without mechanical fixings, at separating walls, floors and eaves.

Key features

• Up to 4 hours fire integrity
• Fits a 125mm cavity without mechanical fixings
• Can be installed horizontally or vertically
• Meets Robust Detail Part E and Approved Document B
• Third-party certificated by IFC

Good for

• Cavity barriers at separating walls
• Cavity barriers at floor levels
• Cavity barriers at eaves level