Timloc Thermo- Loc FRSTOP Fire Rated Cavity Stop Sock for 50mm Cavity (20 Per Pack)

FRstop 1-hour fire-rated cavity stop sock. Designed to restrict the spread of flames within external masonry and to further minimise the effect of flanking noise pollution at wall junctions.

- FRstop cavity stop socks are lengths of low resin, non-combustible, rockfibre mineral wool sleeved in 35 micron polythene for on-site
weather protection
- 1 hour fire integrity and minimum 15 minute insulation
- Polythene encapsulated cavity stop sock
- Meets the requirements of the Robust Detail, Approved Document B and NHBC Standards