𝑺𝒎𝒐𝒌𝒆 𝑫𝒆𝒕𝒆𝒄𝒕𝒐𝒓 𝑺𝒑𝒂𝒄𝒊𝒏𝒈 𝒇𝒐𝒓 𝑯𝒊𝒈𝒉 𝑪𝒆𝒊𝒍𝒊𝒏𝒈𝒔

High Ceilings, New Rules: NFPA 72 (2025) Raises the Bar

NFPA 72 (2025) introduces a major change for smoke detection in ceilings over 40 feet high.
Traditional 30-foot spacing no longer applies automatically — ceiling height, stratification, and airflow must now be evaluated.

When air movement or heat layers can delay smoke reaching the ceiling, a performance-based design may be required. That means using modeling, testing, or documented engineering analysis to justify detector placement and coverage.

📘 𝑲𝒆𝒚 𝒕𝒂𝒌𝒆𝒂𝒘𝒂𝒚:

Every high-ceiling design must now include documentation proving how spacing decisions meet detection performance.

At Capitol City Fire Protection & Life Safety, our NICET IV-certified leadership ensures every layout complies with both NFPA 72 and Louisiana Fire Marshal requirements — no guesswork, no shortcuts.

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