Roofing is one of the most scrutinized categories of permitted work in Florida, and it is not bureaucratic overkill. A roof that fails during a hurricane does not just damage itself, it exposes the rest of the structure to wind-driven rain, and a poorly attached roof covering can become a projectile that damages neighboring homes. The permit and inspection process exists to catch problems before they become someone's emergency.
Unlike some cosmetic home improvements, reroofing in Florida almost always requires a permit, regardless of whether you are repairing a section or replacing the entire roof. The only real exceptions are very minor repairs below a small square-footage threshold set by your local jurisdiction. If you are getting quotes and a roofer tells you a full replacement does not need a permit, that is a red flag worth asking about directly.
Every roofing material used in Florida, shingles, tile, metal panels, underlayment, has to carry a product approval number showing it has been tested and approved for use under the Florida Building Code, including wind resistance ratings appropriate for your area. Your contractor should be able to provide the product approval documentation for whatever they are installing, and the permit application typically requires it upfront, not after the fact.
Many Florida jurisdictions apply a rule where if the area of roof being replaced or repaired exceeds roughly a quarter of the total roof area within a set period, the entire roof may need to be brought up to current code, not just the section being worked on. This catches people who try to do a roof in phases to avoid a bigger project, and it is worth asking your building department about directly if you are only planning a partial replacement.
A permitted, code-compliant roof with documented wind mitigation features can lower your homeowner's insurance premium, sometimes significantly. An unpermitted roof replacement can do the opposite. If a claim is ever filed and the insurer discovers the roof was replaced without a permit, it can complicate or void coverage for roof-related damage entirely.
Reroofing permits exist because roofs are the first line of defense in a hurricane, and Florida's inspection process is built around catching the specific failure points that cause the most damage when storms hit. Get the permit, ask for the product approval documentation, and do not let anyone talk you into skipping the dry-in inspection to save a few days.