FV225 Large Ventilated Cavity Barrier
FV225 Large Ventilated Cavity Barrier consists of a specially formulated fire rated rock mineral fibre section with an integral high expansion intumescent seal attached to the leading edge, used for ventilated cavities with a maximum air gap of 25 mm.
Usage/purpose
FV225 is a fire rated product designed to act as an external wall cavity barrier at the required locations such as compartment floors, around windows, doors, etc. and within uninsulated cavities requiring permanent (open-state) ventilation.
In the event of a fire FV225 will expand to close the final gap between its leading edge and the internal face of the cladding. It provides effective fire resistance, for integrity and insulation for up to 180 minutes depending upon the construction of the external walls. FV225 is designed for use within a designed cavity of up to 450 mm, and once installed will close the remaining free air gap (in front of the 4 mm thick cavity barrier) of 25 mm.
- Enhanced for 120 minutes fire resistance tested in accordance with ASFP TGD19 Guidance.
- Maintains a 25 mm air gap.
- Up to 450 mm cavities tested.
- Fixing brackets included as standard.
- Allows ventilation of cavities reducing the need for cavity trays or weepholes.
- Lightweight for easy and quick installations.
- No maintenance required after installation.
