fire vent

smoke and fire vent

A vent cover, installed on a roof, which opens automatically when the heat exceeds 160°F (71.4°C), thereby releasing the door and venting the fire.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
The Bilco Company's Lumivent is a domed automatic fire vent that provides natural daylight, energy efficiency, and the protection of automatic fire venting.
Because the fire vented itself through the roof, it's believed that the fire had burned for a long time before it was discovered, Deputy Chief Testagrossa said.