fischer VentiStop Cavity Barrier - FFB-VS

FFB-VS a foil-faced stone wool pre-cut unit, which has a powerful intumescent graphite strip bonded to the exposed face. The intumescent graphite strip is pre-wrapped with a durable polythene adhesive sheet to prevent water ingress. FFB-VS has been designed to provide a 25 and 50 mm ventilation gap, that allows air flow and moisture to pass down the back of the cladding. Under fire conditions, the powerful intumescent along the front edge expands horizontally to close the gap and prevent the passage of fire. Features: - Tested up to 120 minutes integrity and 90 minutes insulation (120 min insulation with FFB-VS HP80) utilising the heating and pressure conditions of EN 1363-1: 2017 and ASFP TGD19: 2014 - Open State Cavity Barriers. - Suitable to close 25 & 50 mm ventilation gap - Free of halogens, asbestos, fibres and silica and is non-toxic - Horizontal cavities between the inner and outer construction elements - FFB-VS a foil-faced stone wool pre-cut unit, which has a powerful intumescent graphite strip bonded to the exposed face. The intumescent graphite strip is pre-wrapped with a durable polythene adhesive sheet to prevent water ingress. - FFB-VS has been designed to provide a 25 & 50 mm ventilation gap, that allows air flow and moisture to pass down the back of the cladding. Under fire conditions, the powerful intumescent along the front edge expands horizontally to close the gap and prevent the passage of fire. Available in 3 sizes/article numbers - contact us with your required size or article number. - Brand: fischer (Germany)