fire-resistive wall

fire-resistive wall

A wall having a fire rating in accordance with code or underwriters’ requirements governing its use; not necessarily incombustible.
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Any in-service penetration of a fire-resistive wall or floor assembly compromises its ability to function as a passive fire barrier.
Firestop systems protect against the passage of flames, deadly gases and toxic smoke through openings that are created for penetrations, joints and gaps in fire-resistive walls, floors and floor/ceiling assemblies.