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Fire BarrierA fire resistance rated vertical or horizontal assembly of materials designed to restrict the spread of fire in which openings are protected.
Fire WallA wall separating buildings or subdividing a building to prevent the spread of fire and having a fire resistance rating. Fire walls are structurally stable such that collapse of construction on either side will not cause the wall to collapse.
Smoke BarrierA continuous membrane, either vertical or horizontal, that is designed and constructed to restrict the movement of smoke.
Fire Rated or Fire ResistantA system that has been tested in accordance with the appropriate fire test standard and passed. As applied to elements of buildings, it is characterized by the ability to confine a fire or to continue to perform a given structural function, or both. Such testing is conducted by a nationally recognized laboratory, which rates the system for the time it endured the test.
Fire Test StandardFire test standards are procedures intended to measure and describe the response of materials, products, and systems to heat or flame under controlled conditions.
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