Intumescent Fire Grilles come in a wide range of sizes to ensure that you get a solution regardless of the size of the area that you would like to cover. The 300mm to 350mm size fits into walls and doors effortlessly, providing fire protection for over one hour. At the heart of each grille lies the intumescent core that has a 6mm galvanised steel frame and vermin-proof steel mesh that gets fitted to both faces.
You will have the option of choosing between rectangular or square grilles to get fire protection with a rating ranging between 30 and 60-minutes, with each grille has an area of 600mm2.
Each pack contains one grille and two air transfer plates.
How To Install Your Intumescent Fire Grilles
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The Grille is tested with the Steel Face Plate (included) on either side of the door.
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Suitable for fitting up to 1,000mm (1m) from floor level. The top of the grille should not be higher than 1000mm from the floor.
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For block work installation, block work should be a minimum of 75mm thick and with a suitable lintel above the grille so that the grille is non load bearing.
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Door work installation should be a minimum of 44mm thick.
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The doorset must have been shown capable, by test or assessment, of accepting an aperture of the dimensions required without detriment to its fire resistance performance. When determining acceptable aperture cut out dimensions, it is permissible to utilise aperture dimensions approved for glazed vision panels that have not been used.
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