Current best sellers

Intumescent Block Grille

New product

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

More details


- +

Product Info

A non-clogging, block-type intumescent grille giving 90% free ventilation area.

All block grilles are 38mm thick, providing up to 4 hours of fire protection.

In addition to the stocked sizes the grille can be manufactured to any size or shape within two or three days. Coated steel plates are also available in anodised aluminum, white, brown (powder coated) and other colours to order.

Fire Performance

This product 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).


7 other products in the same category:


Compare 0