• To restrict the spread of smoke and flames within external timber-timber cavity walls.
• To provide a cavity barrier at separating walls, separating floors and around window or door apertures.
• To minimise heat loss and the effect of flanking noise pollution through the cavity wall.

A fire-rated cavity stop sock for timber-timber construction.

Features and benefits:

• TTFRSTOP cavity stop socks comprise a length of non-combustible mineral wool insulation sleeved in a polythene outer layer for on site weather protection.
• 60-minute fire integrity and insulation performance.
• Available to suit cavity widths from 50 mm up to 150 mm.

Quality:

• Complies with Building Regulations Approved Document B and Robust Detail Part E.
• Independently tested by Warringtonfire in accordance with EN 1366-4 principles.
• Satisfies NHBC technical requirements.
• Manufactured using mineral wool insulation classified as Euroclass A1 for fire according to BS EN 13501-1.
• Mineral wool insulation is compliant with BS EN 13162 thermal insulation products for buildings.
• The product contains no CFCs, HCFCs, or other ozone-depleting substances.