Timloc Thermo-Loc FRSTOP 1 Hour Fire Rated Cavity Stop Sock For 75mm Cavity (18 Per Pack)

The Timloc Thermo-Loc FRSTOP 1 Hour Fire-Rated Cavity Stop Sock is made for a 75mm cavity width and will help to restrict the spread of flames within the external masonry while also offering additional noise reduction at wall junctions. These thermal and acoustic cavity stop socks will easily friction fit within the cavity and can be installed both vertically and horizontally into the cavity during construction.

Made from lengths of low resin, non-combustible rockfibre mineral wool sleeved in 35 micron polythene for on-site weather protection. Once installed, your benefit from 1 hour fire integrity and a minimum of 15 minutes of insulation while further minimising the effect of flanking noise pollution at wall junctions. Care should be taken to ensure butt joints are closely fitted and the cavity sock fully fills the cavity.

The friction-fit installation method should be incorporated with a preformed horizontal cavity tray (refer to Technical Department for appropriate type) and proprietary wall weep vents (1143) at 900mm centres to prevent water ingress from bridging the cavity.

How to order: Calculate quantities by dividing the overall length of the required cavity wall run by 1.2m, allow an additional unit for each corner for cutting. Always round up to the next whole number. Determine and stipulate the cavity width that FRstop needs to suit.

• Size: 85mm x 85mm x 1200mm
• For 75mm Cavity Width (18 Per Pack)
• Fire Integrity: 1 hour fire and a minimum of 15 minutes insulation
• Polythene encapsulated cavity stop sock
• Manufactured using Rockfibre mineral wool
• Rockfibre uses no CFC’s, HCFC’s in the manufacturing process
• Thermal conductivity of Rockfibre insulation 0.037w/mK
• Meets the requirements of the Robust Detail, Approved Document B and NHBC Standards
• Boxed in smaller quantities for convenience
• Available in standard widths of 50mm, 75mm, 85mm, 90mm, 100mm, 115mm, 125mm and 150mm
• Also available to suit cavity widths of up to 300mm