Existing buildings must comply with not less than the minimum provisions specified in Table 14X-5-501.2. The provisions of this chapter do not allow the elimination of fire protection systems or a reduction in the level of fire safety provided in existing structures constructed in accordance with requirements in effect at the time of construction.
Exceptions:
1. Where an alteration has been permitted in accordance with the Chicago Building Rehabilitation Code.
2. Group U occupancies.
SECTION | USE | OCCUPANCY CLASSIFICATION | ||||||||||||||||||||
High-rise | Atrium | A | B | E | F | H-1 | H-2 | H-3 | H-4 | H-5 | I-1 | I-2 | I-3 | I-4 | M | R-1 | R-2 | R-3 | R-4 | R-5 | S | |
SECTION | USE | OCCUPANCY CLASSIFICATION | ||||||||||||||||||||
High-rise | Atrium | A | B | E | F | H-1 | H-2 | H-3 | H-4 | H-5 | I-1 | I-2 | I-3 | I-4 | M | R-1 | R-2 | R-3 | R-4 | R-5 | S | |
502.2 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
502.3 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
502.4 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | – | R | – | R |
502.5 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | – | R | – | R |
502.6 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | – | R | – | R |
502.7.1 | – | – | – | – | – | – | – | – | – | – | – | – | R | – | – | – | – | – | – | – | – | – |
502.7.2 | – | – | R | R | R | R | R | R | R | R | R | R | – | R | R | R | R | R | – | R | – | R |
502.7.3 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
502.7.4 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | – | R | – | R |
502.7.5 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | – | R | – | R |
502.7.6 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | R | R | – | – | – | – |
502.8 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | – | R | – | R |
502.9 | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.1 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
504.2.1 | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.2.2 | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.2.3 | – | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.2.4 | – | – | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.2.5 | – | – | – | – | – | – | – | – | – | – | – | R | R | – | – | – | – | – | – | – | – | – |
504.2.6 | – | – | – | – | – | – | – | – | – | – | – | – | R | – | – | – | – | – | – | – | – | – |
504.2.7 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | R | R | – | – | – | – |
504.2.8 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
504.2.9 | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.3.1 | – | – | – | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.3.2 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | – | R | – | R |
504.3.3 | – | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.4.1 | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.4.2 | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.4.3 | – | – | – | – | – | – | – | – | – | – | – | R | R | R | R | – | – | – | – | – | – | – |
504.4.4 | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.5 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | – | R | – | R |
504.6.1 | – | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.6.2 | – | – | – | – | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.6.3 | – | – | – | – | – | – | – | – | – | – | – | R | R | R | R | – | – | – | – | – | – | – |
504.6.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | R | R | R | – | – | – |
504.6.5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | R | R | R | R | – | – |
504.6.6 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | R | – | – | – | – | – |
504.6.7 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | R | – | – |
504.7 | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
504.8 | – | – | – | – | – | – | – | – | – | – | – | R | – | – | – | – | R | R | R | R | R | – |
504.9 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
505 | – | – | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
506 | R | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
R = The building is required to comply.
a. Existing buildings must comply with the sections identified as "Required" based on occupancy classification or use, or both, whichever is applicable.
(Amend Coun. J. 2-19-20, p. 14473, Art. V, § 17)
This section governs maintenance of the materials, systems, and assemblies used for structural fire resistance and fire- resistance-rated construction, separation of adjacent spaces to safeguard against the spread of fire and smoke within a structure, and the spread of fire to or from separate structures.
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