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Sheet lead.

Municipal Code of Chicago § 18-29-402.4
in effect
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18-29-402.4 Sheet lead. Sheet lead for shower pans shall weigh not less than 4 pounds per square foot (19.5 kg/m 2 ) and the sheet lead shall be coated with an asphalt paint or other approved coating.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2690941Fetched: 10/24/2026

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