A slim block-type intumescent grille giving an excellent free ventilation area.
- For ceilings, doors, walls and ventilation ducting.
- Openings are be sealed off in under one minute when attacked by fire.
- Can be made as shallow as 15mm deep to special order.
Please note; does not include face plate.
The Block Grille underwent a fire resistance test employing the general procedures and criteria of: BS476 Part 22 (1987), achieving an integrity of 240 minutes.
Also tested at VNE to European Standard EN1363-1 (2000).
Envirograf Product 36
About Intumescent Block Grille
A slim block-type intumescent grille giving an excellent free ventilation area.
- For ceilings, doors, walls and ventilation ducting.
- Openings are be sealed off in under one minute when attacked by fire.
- Can be made as shallow as 15mm deep to special order.
Please note; does not include face plate.
Envirograf Product 36
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