Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED ON OCCUPANCY AND USE
Section 442 — COMBUSTION ENGINES AND GAS TURBINES [SFM]
2025 California Building Code (Title 24, Part 2) · 2025 edition · ingested 2026-07-07 · California
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442.1 General. ¶
442.1 General. The installation of combustion engines and gas turbines shall be in accordance with NFPA-37 and this chapter.
442.2 Separation. ¶
442.2 Separation. 442.2.1 Construction. Every room in which is installed a combustion engine or gas turbine shall be separated from the remainder of the building by not less than a one-hour fire barrier. 442.2.2 Exterior openings. When doors, windows or louvered openings are located below openings in another story or less than 10 feet (3048 mm) from doors, windows or louvered openings of the same building, they shall be protected by a fire assembly having a 3 / 4 - hour rating. Such fire assemblies shall be fixed, automatic or self-closing. 442.2.2.1 Interior openings. In other than buildings…