Siderise RV vertical cavity barriers for rainscreen cladding are used to full fill the void between the external envelope and internal structure. Comprising a Lamella stone wool core with reinforced aluminium foil faces, the RV Vertical Cavity Barrier can compress and flex in-line with the natural building movement common in cladding, with no loss of performance during the building lifecycle.

The construction offers excellent resistance to the passage of both smoke and fire. Additionally, by fully sealing the void, they assist ventilated façades to function by maintaining air-pressurisation compartmentation.

Significantly, their unique stone wool lamella core construction enables the vertical barriers to accommodate the serviceability movement normally associated with rainscreen façades.