• Intumescent Fire Grille (INTUBLOCK) Grant Haze Architectural Ironmongers and Builders Merchants

Intumescent Fire Grille

A durable ventilation grille which is easily mounted in solid timber fire doors & solid block walls, and can provide in excess of 1/2 or 1 hour fire protection. Astroflame Fire Grille comprises of a moisture resistant intumescent core within a galvanized steel frame with vermin proof 6mm steel mesh fitted to both faces.

Suitable for fitting up to 1,000mm (1m) from floor level.

The design allows a free area of 80% approximately. See our Free Area table below for guidance.

Product Availability

All square and rectangular grilles are available to suit 30 minute or 60 minute fire rated applications.

Maximum single grille size is 600 x 600 mm or equivalent area.

Circular grilles are available in a range of diameter sizes and are 60 minute fire rated.

Free Area Specifications

Free Area Table: Astroflame Intumescent Fire Grilles.

Top row is width dimension. First column is Height dimension. Sizes in mm

Calculations made using 80%(approx) free air flow  Please note that this table does not allow for the effects of fitting any of the Astroflame Steel Louvred Face Plates, or any other type of aesthetically pleasing cover over the fire grille. ©1996 Astroflame (Fireseals) Ltd.

To Order & Specify

Please contact us and quote the following in the additional info area - Quantity / Product Code / Product Description / Size
Typical example:- 2 / AFFG 300200 / Astrogrille / 300x200mm


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Intumescent Fire Grille (INTUBLOCK)

  • Brand: Grant Haze
  • Product Code:INTUBLOCK
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Tags: intumescent, fire, grille blocks, grills, intublock