draft curtain

curtain board, draft curtain

A substantial noncombustible curtain, hung tightly against a roof or ceiling along the perimeter of a special-hazard area; acts as a partition in directing heat and smoke within the curtained area toward vents and preventing the spread of fire.
Mentioned in ?
References in periodicals archive ?
What effect do automatic roof heat and smoke vents and draft curtains have on the performance of automatic sprinkler systems?
The project will measure the performance and interaction of sprinklers, heat and smoke vents and draft curtains to develop an understanding of whether their interaction helps or hinders fire suppression.