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Under the NFPA 1 Fire Code, how wide must roof access pathways be on homes with solar panels?

At least 36 inches, running from the gutter to the ridge.

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  1. At least 6 inches
  2. At least 10 feet
  3. At least 36 inches ✔

Why: Firefighters need clear lanes to climb onto and move across a roof. NFPA 1 calls for pathways at least 36 inches wide running from the gutter to the ridge.

Huh, didn't know that: NFPA 1 has required roof access pathways for solar in its 2015 and later editions.

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Why do many fire departments keep dalmatians? Because they assist them in looking for hydrants!
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References

Answer: At least 36 inches. Firefighters need clear lanes to climb onto and move across a roof. NFPA 1 calls for pathways at least 36 inches wide running from the gutter to the ridge.

  1. NFPA: Residential Solar Panel Requirements www.nfpa.org/news-blogs-and-articles/blogs/2024/02/29/residential-solar-panel-requirements
    They are required to be not less than 36 in. (914 mm) wide and run from the gutter to the ridge.
    Checked 2026-10-10.

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