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Smoke barriers.

Municipal Code of Chicago § 14X-5-502.3.2
in effect
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14X-5-502.3.2 Smoke barriers. Required smoke barriers must be maintained to prevent the passage of smoke. Openings protected with smoke barrier doors or smoke dampers must be maintained in accordance with NFPA 105.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2675644Fetched: 10/24/2026

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