ARC Open State Cavity Barrier

Open State Cavity Barrier for ventilated cavities

• Reactive intumescent element
• Either 60min or 120min fire integrity
• 25mm or 44mm air gap for ventilated cavity
• Tested for ASFP TGD19 standards
• Fixing brackets included as standard
• Suitable for use horizontally
• Third party certificated by IFC

Description

ARC Open State Cavity Barriers (OSCB) are 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 25mm or 44mm.

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.

Suitable for installation horizontally, ARC Open State Cavity Barriers should be partnered with ARC Fire Stop Slab installed vertically for a complete cavity barrier solution. The person installing the Open State Cavity Barrier should first familiarise themselves with the datasheet, ensuring the correct product is being fitted into the cavity.

Key stats

OSCB25

OSCBPLUS25

OSCB44

See separate fixing details for specific bracket specification relevant to cavity width and barrier type.

Please contact us for requirements outside of these ranges. Non standard details, sizes and test data may be available.

All performance claims made are evidenced in the IFC certification IFC 1729.

Test reports, third party certification and MSDS available on request.