Intumescent Fire Grilles by Astroflame
Astroflame branded Intumescent ventilation grilles for installation in solid timber fire doors & solid block walls. They Provide up to 1 hour fire protection BS EN 1634-2.The Grilles have a moisture resistant intumescent core within a galvanised steel frame with vermin proof 6mm steel mesh fitted to both faces. All square and rectangular grilles are available as 30 and 60 minute fire rated. Maximum single grille size is 600mm² and all the grilles have a depth of 42mm. Suitable for mounting up to 1,000mm (1m) from floor level.
Fire Test: Warrington Fire Research: Global Assessment C100767, Chiltern International Fire: FEA/F96117 and Trada/Chiltern: RF95041.
The design allows a free area of approx 80% for ventilation (without the use of cover plates). Don't forget to order your matching cover plates (Air Transfer Plates) which are available, please see the Related Product seen at the bottom of each grille product page.