Chapter 6 — FIRE PROTECTION REQUIREMENTS

Section 605 — SPARK ARRESTORS

2025 California Wildland-Urban Interface Code (Title 24, Part 7.5) · 2025 edition · ingested 2026-07-06 · California

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605.1 General.

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).

605.2 Net free area.

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.