A partition designed to restrict the spread of fire.
Fire proof
The covering of all exposed surfaces constructed of noncombustible materials, which include brick, aluminum siding, cement and asbestos shingles.
Fire rating
Rating system that shows the fire resistance of a material or system as tested by a recognized laboratory against applicable ASTM standards. For instance, one 5/8 inch thick type X gypsum drywall sheet installed on each side of a wood stud will give a wall a one hour rating, while a double thickness will give a two hour rating.
Fire resistance
The property of a material or assembly, to withstand fire or give protection from it.
Fire resistant panels
Panels made of type x gypsum wallboard. Fiberglass and other heat-resistant, noncombustible materials are added to its core to increase the fire resistance of the wallboard.
Fire resistive
Materials, which are able to withstand exposure to flame of a specified intensity or for a specified time. Fire resistive materials are used in interior finishes, such as wood paneling, wallboard, acoustical tile, furniture and carpeting fabrics.
Fire retardant
A chemical or preparation of chemicals used to reduce flammability or to retard spread of a fire over the surface.
Fire retardant paint
Paint with nitrogen compounds that form insulating gas bubbles when exposed to heat so that the heat transfer is slowed by the trapped gas, thus protecting the painted surface.
Fire retardant treatment
Saturation of material or coating of surfaces with fire retardant chemicals.
Fire stop
Wooden block built between the wall studs or joists, within covered walls, which closes off the passage of air, thereby limiting the spread of fire.
