A FIRE-RATED DOOR: WHAT IS IT?
The materials used in the construction of fire-rated doors combine to reduce or eliminate the spread of smoke, flames, and, in some cases, conductive and radiant heat transmission. Typical materials include of fiberglass, steel, wood, and fire-rated glass, or a mix of these.
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Assembly is the term used to describe fire-rated doors, which consist of the door, frame, hardware, glazing, and other component elements. Although they don't have to come from the same manufacturer, each component pieces need to be categorized and labeled in order to be used in a fire door assembly. Some manufacturers now provide fire-rated door assemblies, which make specifying easier because the individual pieces have been tested and intended to function as a cohesive unit. This ...