Silverliner® Open State Cavity Barrier

Silverliner® Open State Cavity Barrier is designed to protect ventilated façade systems by closing the voids between the external cladding and internal structure in the event of a fire. Engineered for use with a 25mm or 50mm linear air gap, it allows natural ventilation and moisture drainage during normal conditions. In fire situations, the intumescent edge expands to seal the gap, effectively preventing the spread of fire and smoke between compartments. Featuring a non-combustible core, aluminium foil facing to restrict fibre migration, and third-party IFCC approval, Silverliner® offers a fast, dry-fit installation with up to 120 minutes of fire resistance as tested to ASFP TGD 19 delivering long-term, compliant protection with an assumed working life of 25 years.