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 intu-mescent along the front edge expands horizontally to close the gap and prevent the passage of fire.
- Tested up to 120 minutes integrity and 90 minutes insulation utilising the heating and pressure conditions of EN 1363-1: 2012 and ASFP TDG19: 2014 - Open State Cavity Barriers.
- Suitable to close 25 & 50 mm ventilation gap
- Voids up to 450 mm wide
- Free of halogens, asbestos, fi bres and silica and is non-toxic
- Long life expectancy
- Contributes to green building