GR Intumescent Air Transfer Blocks 40mm Thick

Description

When installing ventilation, air conditioning, ductwork or simply cutting holes for ventilation within a compartment wall the integrity of the building must be retained.

Fire blocks offer a low maintenance, low cost answer to this application giving up to 60 minutes* integrity in accordance to BS 476 parts 20:22 together with giving excellent free air flow during normal use.

Excellent free air flow, no mechanical or moving parts, hence need no regular maintenance apart from inspection to ensure they have not been damaged

We recommend that these blocks be sealed in place using intumescent mastic compound. See linked products below.

Will normally require a decorative trim grill to one or both faces. Please order separately - See linked products below.

Available in a variety of sizes and shapes (Square, Rectangular and circular)

40mm Thick