The fixing brackets should be mechanically fixed in to the edge of the concrete floor slab or in to blockwork. A minimum 50mm masonry screw should be used.
ARC Fire Stop Slab provides up to four hours of fire integrity horizontally and vertically within external wall cavities. It is particularly well suited for use with medium and high-rise projects. The ARC Fire Stop Slab is manufactured from rockfibre mineral wool insulation with a class ‘O’ reinforced aluminium foil facing both sides offering resistance to smoke.
| Length supplied | 1.2m |
| Third-party certification | IFC certificate number: IFCC 1731 |
| Insulation | Non-combustible rockfibre mineral wool |
| Thermal conductivity | 0.035W/mK |
| Fire rating | Up to four hours |
| Test standard | EN1366-4 |
| Construction type | Masonry & SFS |
| Orientation | Horizontal or vertical |
What should I use to fix the brackets to the substrate?
The fixing brackets should be mechanically fixed in to the edge of the concrete floor slab or in to blockwork. A minimum 50mm masonry screw should be used.
Does ARC Fire Stop Slab need a compression fit?
A 5mm compression fit is recommended. When cutting on-site, it is important to ensure the cut size is suitable for the as-built cavity, as no gaps can remain between the barrier and the internal or external leaf.
Is the ARC Fire Stop Slab suitable for use with SFS
Yes. ARC Fire Stop Slab has a range of supporting test evidence in accordance with BS EN 1366-4, and subsequently a FoA report has been written by independent fire engineers outlining the approved scope of use. This includes use against SFS and sheathing board.
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