Roofing permits and code in Flagstaff
Updated July 2026
Re-roofing in Flagstaff requires a permit, and the local code reflects the mountain climate in ways desert codes do not. The two rules to know are the ground snow load the structure must handle and the fire-rating of the roofing material itself.
Who issues the permit
Inside city limits, the City of Flagstaff Building Safety program, part of Planning and Development Services in the Community Development Division, issues roofing permits and inspects the work. Homes in unincorporated Coconino County outside the city go through the county instead. Confirm which jurisdiction you are in before you apply, because it changes where you file and which amendments apply.
Snow load and materials
The City of Flagstaff designs to a 60 pound per square foot ground snow load, a figure that would be unheard of in the Valley and that shapes how roofs are structured and fastened. For re-roofing, the city requires roofing materials rated Class A or Class B, and specifies that rolled roofing be a self-adhering polymer-modified bitumen type. A licensed local roofer will know these requirements, which is one more reason to hire in-market rather than out of the Valley.
Why hire a licensed roofer for permitted work
A licensed Arizona ROC roofer pulls the permit, builds to the snow-load and material requirements, and stands behind the work through inspection. Arizona licenses roofing contractors statewide through the Registrar of Contractors, so you can verify any roofer against the ROC regardless of city. Skipping the permit to save time tends to surface later, at resale or in an insurance claim, when unpermitted roof work becomes a problem.
Frequently asked questions
Do I need a permit to re-roof in Flagstaff?
Yes. Re-roofing a building requires a permit from the City of Flagstaff inside city limits, or Coconino County if you are in an unincorporated area. Confirm your jurisdiction before applying.
What is the Flagstaff snow load requirement?
The City of Flagstaff designs to a 60 pound per square foot ground snow load. It is a defining difference from desert construction and it shapes how roofs are framed and fastened.
What roofing materials does Flagstaff allow?
The city requires Class A or Class B rated roofing materials for re-roofs, with rolled roofing specified as a self-adhering polymer-modified bitumen type. A licensed local roofer will build to these.