GENERAL REQUIREMENTS

Municipal Code of Chicago tit. 14N, pt. I, ch. 14N-C3

in effect

Municipal Code of Chicago § 14N-C3-C301 Climate zone.

14N-C3-C301 Climate zone. The provisions of Section C301 of IECC-CE are not adopted. The following is adopted as Section C301: "C301 CLIMATE ZONE C301.1 General. Climate zone 5A shall be used to determine the applicable requirements in Chapter 4."

Municipal Code of Chicago § 14N-C3-C302 Design conditions.

14N-C3-C302 Design conditions. The provisions of Section C302 of IECC-CE are adopted by reference without modification.

Municipal Code of Chicago § 14N-C3-C303 Materials, systems and equipment.

14N-C3-C303 Materials, systems and equipment. The provisions of Section C303 of IECC-CE are adopted by reference with the following modifications: 1. Revise Section C303.1.1 by replacing "insulated siding" with "insulated siding." 2. Revise Section C303.1.4.1 by replacing "insulated siding" with "insulated siding." 3. Revise Section C303.2.1 by replacing "basement walls, crawl space walls" with "below-grade walls, crawl space walls."

Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2698385Fetched: 10/24/2026