draught stop

draught stop

[′draf ‚stöp]
(building construction)

fire stop

fire stop
In a concealed, hollow construction, a material or member which fills or seals the open construction to prevent or retard the spread of fire.
References in periodicals archive ?
It activates automatically at 25mph and retracts at 9mph while a draught stop behind the rear head restraints is self adjusting when the back seats are occupied.
The model is to be equipped with an automatic draught barrier called Aircap which includes two separate parts - a wind deflector on the windscreen frame and a draught stop between the two rear seats - and Airscarf neck-level heating system.