Verified by manufacturer 2 months ago
Open state cavity barrier for ventilated cavities.
Cavity barriers designed for installation within cavities where ventilation is required in service use. Manufactured from non-combustible rockfibre mineral wool with a reactive intumescent layer, the cavity barrier can provide an air gap of up to either 25 or 44 mm. The intumescent layer will rapidly expand when exposed to heat in a fire event, closing off the air gap and preventing vertical fire spread within the external wall cavity.
Features and benefits:
ARC OSCB open state cavity barriers should be partnered with ARC Fire Stop Slab installed vertically for a complete cavity barrier solution.
Rock fibre mineral wool.
P12/360 Mineral wool rigid batts
P12/40 Mineral wool rigid batts
60 minutes integrity and insulation.
Cavity width less 25 mm. Insert requirements.
Red with green strip.
25 mm maximum air gap.
100–450 mm. Insert requirements.
ARC pigtail screw and ARC OSCB fixing bracket.
ISOQAR and UKAS.
Contains Red List materials
Country of material origin
Country of product manufacture
NBS BIM object standard
This BIM object has been authored to meet the requirements of the NBS BIM object standard.
Find out more about the NBS BIM object standard.
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