fire grading
The fire-hazard classification of a building or structure, usually specified in hours; see fire-protection rating.
The fire-hazard classification of a building or structure, usually specified in hours; see fire-protection rating.
A cast-iron housing, permanently installed in a large fireplace opening to reduce its size.
An installation of automatic sprinklers, foam nozzles, fire hoses, and/or portable fire extinguishers, designed to provide adequate fire-extinguishing capability for
A portable device, for immediate and temporary use in putting out a fire: class A: used on fires involving ordinary
The subjection of a material or construction to a high heat flux from an external source, with or without flame
1. Any window which opens onto a fire escape. 2. A window at ground level which is designed to open