Chapter 6 — FIRE PROTECTION REQUIREMENTS

605 Spark Arrestors — 2025 California Wildland-Urban Interface Code

California Wildland-Urban Interface Code (Title 24, Part 7.5) · 2025 edition · updated 2026-09-25 · California

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Cite as: 2025 California Wildland-Urban Interface Code (Title 24, Part 7.5) § 605 · Effective January 1, 2026 · Official source: Building Standards Commission

605.1 General.¶

Chimneys serving fireplaces, barbecues, incinerators or decorative heating appliances in which solid or liquid fuel is used shall be provided with a spark arrestor. Spark arrestors shall be constructed of woven or welded wire screening of 12 USA standard gage wire (0.1046 inch) (2.66 mm) having openings not exceeding 1/2 inch (12.7 mm).

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605.2 Net free area.¶

The net free area of the spark arrestor shall be not less than four times the net free area of the outlet of the chimney.

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▸Contents — California Wildland-Urban Interface Code (Title 24, Part 7.5)

California Wildland-Urban Interface Code (Title 24, Part 7.5)

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