Wall, designed and rated to delay passage of fire, which extends continuously from the bottom to the top of a structure.
Fire door
A door designed to resist the passage of fire. Fire doors are rated by the amount of time they can resist the penetration of fire with the time ranging from one-half to three hours. Fire doors are used to close openings in firewalls, so that the door area is no more vulnerable to fire than the wall.
Fire door, corrugated
A fire-resistant door constructed of two layers of corrugated galvanized steel with 2 1Ú2 -inch corrugations over an asbestos sheet core with a steel frame.
Fire door, metal-clad
A fire-resistant door fabricated from 30 gauge, or thicker, sheet steel panels. It has interlocking seams and a core of dry wood. It is the most common type of fire door currently in use and is often referred to as tin clad.
Fire escape
A fireproof stairway that runs down the outside of a building to help people escape if the building is burning.
Fire extinguisher
Device containing fire-suppressing material under pressure, which is directed at the fire to extinguish it by means of oxygen deprivation and/or cooling. Hydrants are rated as follows:
Fire front
That part of a fire within which continuous flaming combustion is taking place. Unless otherwise specified it is assumed to be the leading edge of the fire perimeter.
Fire hydrant
A street hydrant supplied from a fire main or other water main, with connections for fire hoses and a valve to start and stop the water flow.
Fire insurance
Insurance protecting against loss or damage from fire.
Fire lines
Use of a wet standpipe, which is a vertical pipe, always full of water, which reaches to the upper floors of a building that can be immediately accessed to distribute water, in the event of a fire.
