Nullifire FV125 Large Ventilated Cavity Barrier - 1000mm x 75mm x 4mm

• Up to 180 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

The FV125 is a fire-rated cavity barrier engineered for use in external walls to restore fire resistance performance in open-state cavities. It is suitable for critical locations, such as around windows, doors, compartment floors, and uninsulated cavities requiring permanent ventilation. During a fire, the FV125's intumescent material expands to seal the gap between its leading edge and the cladding's interior surface. Designed for cavities up to 450 mm, the barrier effectively closes a 25 mm air gap in front of its 4 mm thickness, offering up to 180 minutes of fire resistance for both integrity and insulation, depending on the external wall's construction.

What fire rating does FV125 offer?

FV125 provides up to 180 minutes of fire resistance, depending on the specific application and installation. Check the product documentation for detailed performance data.

Is FV125 suitable for external wall systems?

Yes, FV125 is specifically designed for use in external wall systems with ventilated façades.

What applications is FV125 suitable for?

• Ventilated façades in residential, commercial, and industrial buildings.
• Projects requiring both fire safety and moisture control.