718.2.6.1.1 Locations.
BC § 718.2.6.1.1
Noncombustible fireblocking materials shall be required at all of the following locations to cut off concealed spaces within the exterior wall covering: 1. Around wall openings.
2.In alignment with the slab edge, for a height of not less than 8 inches (203.2 mm), and at maximum intervals of 20 feet (6096 mm) vertically.
3.Between different occupancy groups, horizontally or vertically, as applicable.













