ROH §16-4.2
Fire sprinkler rules for thatched roofs and walls
Read the official text at honolulu.gov ↗This section requires thatched roofs and walls to have manual sprinkler systems. Roofs need sprinkler heads with enough water and proper pipe size. Walls need outside sprinklers that follow a specific fire safety standard. Controls must follow the rules in this article.
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The ordinance, as written (Honolulu County) — Fire-extinguishing systems
A copy, taken August 22, 2026. The version published by Honolulu is the one that governs, and it may have changed since. Check it before relying on anything here.
(a) General. Thatched materials used on the roof of a building shall be protected by manually operated sprinkler heads, with adequate water supply, pipe size, and sprinkler head spacing in accordance with sprinkler system requirements set forth in this article.
(b) Thatched materials used on the wall of a building shall be protected by manually operated outside sprinklers. Size and spacing of sprinklers and pipe size shall be in accordance with Chapter 6 of NFPA 13, Outside Sprinklers for Protection Against Exposure Fires, of the National Fire Codes of the National Fire Protection Association. Controls shall be as set forth in this article.
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LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.