smoke door

smoke door

In the roof of a theater, above the gridiron, a door which opens automatically in case of fire or when a release line is cut; confines the smoke to the backstage area.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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(3.) NFPA105-2103, Standard for the Installation of Smoke Door Assemblies and Other Opening Protectives.
Life Safety Services specializes in the inspection and repair of fire and smoke dampers and fire and smoke doors in commercial facilities in all fifty (50) states, Puerto Rico, Canada, and Mexico, and the United Kingdom.
Firefighter Colin Cambell, of Whitchurch Fire Station, Cardiff, told how he entered the building and tried to open the smoke doors in the lobby on the second floor.
``It was such an amazing experience walking through the famous smoke doors, '' she said Laura.
Its product line includes continuous geared hinges, edge-sealing products for fire doors and smoke doors, nylon brush seals, low-closing-force automatic door bottoms, and a patented line of ADA-compliant modular ramp thresholds.
Twenty-minute doors are often referred to as smoke doors, and some localities require only that they be self-closing and sealed.
When duct detectors sense smoke, they initiate action with other fire safety equipment to close automatic dampers, shut off fans, operate smoke doors, and activate other life-safety and property-protection procedures.