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Fire Barrier Systems
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Standards and approvals |
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Rockwool Fire Barrier has a 25mm galvanised wire mesh stitched with wire to one face to produce a flexible Fire Barrier with optional aluminium foil faces.
Rockwool Fire Barrier Slab has a factory applied foil finish to both faces.
Rockwool Fire Barrier and Fire Barrier Slab achieve a reaction to fire classification of A1 as defined in BS EN 13501:1
Rockwool 1⁄2, 1, 11⁄2 and 2 hour cavity/ fire barriers
Satisfies the requirements of the Building Regulations 1991 (2000 edition). Approved Document B and Appendix A, Table A1, for 30 minutes integrity and 15 minutes insulation.
Rockwool Fire Barriers and Fire Barrier Slabs can be used where fire resistant walls need to be continued above a ceiling into the roof void. They conform with the Building Regulations Approved Document B and fulfil all normal fire insulation requirements for divisions of space.
Acoustic performance
The correct use of Fire Barrier within structural cavities and voids will reduce the level of transmitted sound.
Room to room attenuation Rw dB
1 Typical lay-in grid suspended ceiling 30
2 As above, with 50mm Rockwool Fire Barrier 42
3 Applied as 2, but Rockwool Fire Barrier foil faced 44
4 Applied as 2, but two thickness of 50mm
Rockwool Fire Barrier – both foil faced 50
5 Rockwool Fire Barrier Slab foil faced both faces 50
6 If ceiling is plasterboard, add between 2–3 db
Note: values are approximate
Thermal conductivity (K value)
λ=0.036 W/mK
Fire Barrier Systems are part of the Rockwool SoundPro range of acoustic solutions.
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Rockwool Limited, Pencoed, Bridgend, CF35 6NY, UK
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