Ch. 14 Exterior Walls — 2025 California Building Code
California Building Code (Title 24, Part 2) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Building Code (Title 24, Part 2) Chapter 14 · Effective January 1, 2026 · Official source: Building Standards Commission
User notes:
About this chapter: Chapter 14 addresses requirements for exterior walls of buildings. Minimum standards for wall covering materials, such as material performance and fire resistance, installation of wall coverings and the ability of the wall to provide weather protection are provided. This chapter also contains limitations on the areas and heights of combustible wall coverings based on fire separation distances, radiant heat exposure and surface burning characteristics.
ICC code development note: Code change proposals to sections preceded by the designation [BS] will be considered by the IBC—Structural Code Development
Committee during the 2025 (Group B) Code Development Cycle.
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