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Minimum number of roof drains.

Municipal Code of Chicago § 18-29-1110.4
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18-29-1110.4 Minimum number of roof drains. Not less than two drains shall be installed in roof areas 10,000 square feet (930 m 2 ) or less and not less than four roof drains shall be installed in roofs over 10,000 square feet (930 m 2 ) in area.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2692835Fetched: 10/24/2026

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18-29-1110.4 | Corpus