Fire stop

fire stop

[′fīr ‚stäp] (building construction) An incombustible, horizontal or vertical barrier, as of brick across a hollow wall or across an open room, to stop the spread of fire. Also known as draught stop.

Fire stop

Obstructions across air passages in buildings which prevent the spread of hot gases and flames, such as the solid blocking between studs and floor and ceiling joists.

fire stop

fire stop In a concealed, hollow construction, a material or member which fills or seals the open construction to prevent or retard the spread of fire.