Intumescent Grille - Fire Doors - Please contact us directly on 0161 336 5065 for bespoke products not listed as we specialise in made-to-measure vents and custom designs.


CVE Shop Air Transfer Grilles provide protection against the spread of fire through walls, doors, air ducts and openings in fire-resisting constructions such as partitions and doors and have been specifically developed for installation in particularly aggressive humid environments.

The grilles are made from a rectangular extrusion of uPVC filled with an intumescent core. In the event of fire the effect of heat causes the intumescent core to expand, sealing off the duct or opening against the passage of flames and hot gases.
Correctly installed Air Transfer Grilles may be expected to last the design life of the situation in which they are to be used.
CVE Shop Air Transfer Grilles are available in grey as standard. Other colours including red, white and black are available to special order.

Air Transfer Grilles are designed to fit neatly into rectangular or square ducts and openings and can be made to any required size. The standard thickness is 40mm: rectangular grilles are available as standard in sizes ranging up from 100mm square in 25mm increments on height and length up to 600mm square.