FV050 Small Ventilated Cavity Barrier

Small Ventilated Cavity Barrier

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FV050 Small Ventilated Cavity Barrier is suited to an open state cavity of up to 50 mm, manufactured from a directionally
expansive intumescent material encapsulated in a foil barrier.

Fire Rating: 120 Minutes


FV050 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 FV050 will expand to close the external wall cavity, providing effective fire resistance, for integrity and insulation for up to 120 minutes depending upon the construction of the external walls. FV050 is designed for use within a 50 mm cavity, and once installed will close the remaining free air gap (in front of the 6 mm thick cavity barrier) of 44 mm.

Always read SDS, pre-application guidance and relevant application detail prior to application.
Ensure the latest documents are downloaded prior to every project commencement.

Safety data sheet must be read and understood before use.

  • Up to 120 minutes fire resistance tested in accordance with ASFP TGD19 guidance
  • Allows maximum ventilation of cavities reducing the need for cavity trays or weepholes.
  • Suitable for “open-state” ventilated cavities up to 50 mm wide.
  • Lightweight - easy & quick to install
  • Low smoke zero halogen high expansion intumescent material.
  • Water repellent resistant.
  • No maintenance required after installation.
FV050 Performance Table (en-GB).pdf Performance Table
FV050 Safety Data Sheet (en-GB).pdf Safety Data Sheets
FV050 Technical Data Sheet (en-GB).pdf TDS
Nullifire Cavity Barriers Leaflet (en-GB).pdf Brochure