Tested to BS476: Part 22: Comprehensive range of sizes. For use in doors and walls. In excess of 30 or 60 minutes fire rating. Vermin proof wire mesh 80% free area NHBC Type Approval. Suitable for mounting up to 1 metre from floor level.
A durable ventilation grille which is easily mounted in doors and walls, and can provide in excess of 1/2or 1 hour fire protection. Fire Grille comprises of a moisture resistant intumescent core within a galvanised steel frame with vermin proof 6mm steel mesh fitted to both faces. The design allows a free area of 80% approximately.
Availability
All square and rectangular grilles are available to suit 30 or 60 minute fire rated applications. Maximum single grille size is 600mm 2 or equivalent area, although a combination of grilles may be fitted together as a system to achieve a maximum size of 1500 x 1000mm. Circular grilles are available in 100, 125, 150, 200, 225, 250, 300, 350, and 400mm diameter sizes, and are 60 minute rated.
