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§ 14B-25-2508 — Gypsum construction

Municipal Code of Chicago (2026 S-74, current through Council Journal of June 17, 2026) · Municipal Code of Chicago § 14B-25-2508

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14B-25-2508 Gypsum construction.

The provisions of Section 2508 of IBC are adopted by reference with the following modifications: 1. Revise Section 2508.4 to read: "2508.4 Adhesives. Gypsum board and gypsum panel products secured to framing with adhesives in ceiling assemblies shall be attached using the fastening schedule recommended by the manufacturer. Expandable foam adhesives for fastening gypsum wallboard shall conform to ASTM D6464. Other adhesives for the installation of gypsum wallboard shall conform to ASTM C557." 2. Revise note b to Table 2508.6 to read: "Values shall be reduced 50 percent in Seismic Design Category D."