Survey date 2024-07-29 - inspection
SUBDIVISION OF BUILDING SPACES - SMOKE BARRIE Subdivision of Building Spaces - Smoke Barrier Construction 2021 EXISTING Smoke barriers shall be constructed to a 1/2-hour fire resistance rating per 8.5. Smoke barriers shall be permitted to terminate at an atrium wall. Smoke dampers are not required in duct penetrations in fully ducted HVAC systems where an approved sprinkler system is installed for smoke compartments adjacent to the smoke barrier. 19.3.7.3 through 19.3.7.5.2, 8.5 2021 NEW Any required smoke barrier shall be constructed in accordance with Section 8.5 and shall have a minimum 1-hour fire resistance rating, unless otherwise permitted by one of the following: (1) This requirement shall not apply where an atrium is used, in which case both of the following criteria also shall apply: (a) Smoke barriers shall be permitted to terminate at an atrium wall constructed in accordance with 8.6.7(1)(c). (b) Not less than two separate smoke compartments shall be provided on each floor. (2) Smoke dampers shall not be required in duct penetrations of smoke barriers in fully ducted heating, ventilating, and air-conditioning systems. (3) The provisions of 8.5.6.5 and 8.5.7.2 shall not apply. 18.3.7.3 through 18.8.7.5.2, 8.5 For other than existing assemblies, where there is an accessible concealed floor, floor/ceiling, or attic space, fire barriers, smoke barriers, and smoke partitions shall be permanently identified with signs or stenciling in the concealed space and shall comply with all of the following: " (1) Be located in accessible concealed floor, floor/ceiling, or attic spaces. " (2) Be located within 15 ft (4572 mm) of the end of each wall and at intervals not exceeding 30 ft (9144 mm) measured horizontally along the wall or partition. " (3) Include lettering not less than 3 in. (76 mm) in height with a minimum 3?8 in. (9.5 mm) stroke in a contrasting color. " (4) Identify the wall type and its fire resistance rating, as applicable. 8.2.2.5
No actual harm with a potential for minimal harm. The least severe class of CMS finding.
Corrected on 2024-08-30.