OSCB 120/25 (Open State Cavity Barrier)

Polythene sleeved, ROCKWOOL® stone wool fire barrier faced with high performance intumescent material designed for use within open state cavities (e.g. rainscreen systems), allowing ventilation and drainage of the cavity under service conditions.

Open state cavity barriers provide an effective fire barrier for ventilated voids up to 425 mm in depth. OSCB 120/25 delivers a fire rating of up to 120-minutes insulation and integrity with an air space of 25 mm.

Features and benefits:

• Suitable for 25 mm air space.

• Quick and cost-effective installation.

• Galvanized steel fixing brackets are supplied as standard.

• Tested in accordance with ASFP Technical Guidance Document 19 (TDG 19) and BS EN 1363-1.