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ARC Cavity Stop Sock restricts the spread of smoke and flames within external masonry walls, as well as minimising the effect of flanking noise pollution at wall junctions
- Masonry fire rating - up to 4 hours (check out data sheet for actual depending on size required)
- Cavity widths 50 - 300mm
- Specified in terraced semi-detached, apartments and major projects
- Complies to Robust Detail Part E and Building Regulations
- Can be manufactured to suit cavity widths up to 300mm
- Easily installed with compression fit; no mechanical fix is required
They are manufactured from low resin, non-combustible rockfibre mineral wool insulation and are sleeved in polythene for on-site protection.
|Third-party certifcation||Certifire CF5403|
|Insulation||Non-combustible rockfibre mineral wool|
|Fire rating||Up to 4 hours|
|Insulation performance||Minimum 15 minutes|
|Test standard||BS 476 Part 20|
|Orientation||Vertical or horizontal|
|Robust detail performance||E-WM 1-21|
ARC Cavity Stop Sock is designed to be compression fitted within a masonry cavity as the brick and block work progresses, no mechanical fixing is required.
Care should be taken butt joints are tightly fitted with no gaps remaining. The barrier must fully fill the cavity from brick to block, with any cavity insulation cut back.
The polythene encapsulation offers on-site weather protection, but can be cut away without affecting the barrier’s performance
ARC’s wealth of technical experience ensures that the best solution can be identified from their comprehensive range of products. All fire barriers and cavity closers are manufactured to NHBC requirements and hold LABC accreditation. Operating within an ISO 9001 Quality Management System and ISO 14001 Environmental Management System, all products are manufactured to the highest standards.
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