Acoustic insulation OPEN STATE

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Cavity Barriers - External Envelope KEY FEATURES Allow continuous ventilation and drainage behind cladding Up to 120 minutes fire integrity Tested to ASFP Fire Resistance Test of Open State Cavity Barriers utilising BS EN 1363-1 and Principles of BS EN 1366-4 Suitable for horizontal (open void) and vertical (full seal) applications Fully qualified acoustic performance - vertical. For horizontal contact our Facades team SIDERISE Open State cavity barriers represent the default choice for market leading, high performance, Rainscreen Cladding Cavity Barrier applications. Used in the external envelope or fabric of buildings, they ensure the system will drain freely, whilst maintaining airflow and providing an effective hot smoke and fire seal. SIDERISE Open State horizontal cavity barriers Incorporates a continuous bonded intumescent strip to the leading edge and encapsulated in a weather resistant polymer film. In the event of exposure to fire, this expands and fully seals the designed ventilation gap formed at the time of installation between barrier and the rear of the cladding, in compliance with CWCT and NHBC guidance for air gaps up to 50mm. SIDERISE vertical cavity barriers Are specifically intended to full fill the void. As a full fill barrier system, the integral intumescent strip is not required. This product is available with a factory applied DPC pre-bonded to the surface if required.