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Ventilated Fire Brick Vent

Product 55


Intumescent ventilated fire brick that expands and seals to prevent fire penetration

£0.00 ex. Vat

    • 35.86 £


Ventilated fire brick

Ventilated fire brick (FBV), fireplaces bricks are under a sealed cavity tray (SCT) to allow ventilation. Bricks fit under SCT trays at every 2 metres. Designed with small holes to stop rodents from entering the cavity but also designed to allow 41% of free airflow. Designed with zintex metal as well as internal intumescent. During a fire the intumescent will expand and seal the brick, thus preventing fire penetration and airflow.

215mm x 102mm x 62mm, EN1366-3 (2009) and EN1364-5 (2017) tested to 85 minutes integrity.

Cavity Barriers are pieces of fire-stopping material. They fit within the cavity of a building at each floor horizontally and party wall in a verticle position. The material provides compartmentation. Both the flames and heat cannot be transferred to other compartmental areas. Throughout the life of the building, the Cavity Barrier will remain fixed in place. In the event of a fire, the intumescent material expands and seals off the gaps. Additionally, the horizontal barriers allow for a ventilation gap within the cavity. Subsequently closing when the intumescent expands.

Our Cavity Barrier range at Envirograf® offers superb protection to your building by providing fire stopping. Explore the Cavity Barrier range online.



  • Designed with intumescent which expands and seals a fire
  • Improves free air flow by 41%

Order References / Sizes

FBV     215mm x 102mm x 62mm