a vital component of wall framing
A solid, tight closure of a concealed space, placed to prevent the spread of fire and smoke through such a space. Includes stuffing wire and pipe holes in the fire separations.
A seal to close an imperfection of fit between components of a construction in order to restrict the penetration of flame or smoke.
A block of wood placed horizontally in the stud cavity. This prevents the cavity from working like a chimney and allowing the fire to travel up the empty space. This is most common in balloon framing.
Any object or surface placed in an enclosed space to prevent the spread of fire and smoke through the space itself. Often placed inside frame walls or floor joists.
A tightly sealed closure of a concealed space to prevent the spread of fire.
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.
A solid, tight closure of a concealed space, placed to prevent the spread of fire and smoke through such a space; In a frame wall, this will usually consist of 2 by 4 cross blocking between studs; work performed to slow the spread of fire and smoke in the walls and ceiling (behind the drywall), including stuffing wire holes in the top and bottom plates with insulation, and installing blocks of wood between the wall studs at the drop soffit line
