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VentiStop Cavity Barrier - FFB VS

Effective ventilated fire barrier designed to close the void 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 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.

Product Description

Advantages
  • 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

Available Product Variants


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Application and Permission

Applications
  • Horizontal cavities between the inner and outer construction elements
Building materials
  • Concrete slabs, columns and walls
  • Curtain wall assemblies
  • Stone cladding, etc.
You can find detailed information on building materials in the registration document.

Assembly Instruction

Functionality
  • 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 fl ow 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.
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Documents for Downloading

Additional Documents

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