Florida’s 25% Roof Rule: Who It Still Applies To — and Who Escaped It
The building-code threshold that can turn a roof repair into a full replacement — amended in 2022 so that the year on your last roofing permit now decides which rules you live under.
The short answer
Florida’s “25% roof rule” is a building-code threshold with insurance consequences: when more than 25% of a roof — technically, of any roof section — is repaired, replaced, or recovered within a 12-month period, the code requires the entire roof section’s covering to be brought into conformity with the current Florida Building Code. Since May 2022, there’s a statutory exception that changed the math for newer roofs: if the existing roof was built, repaired, or replaced in compliance with the 2007 Florida Building Code or any later edition — in practice, permitted on or after March 1, 2009 — then only the portion being repaired has to meet today’s code, no matter how large the repair. For a roof last permitted before that date, the old rule still bites: cross 25% and the whole section’s covering comes up to current code. That’s why two neighbors with identical storm damage can face completely different bills — and why the year on your last roofing permit is one of the most financially consequential facts about your house.
The rule and the exception, verbatim
The baseline lives in the Florida Building Code’s Existing Building volume: “Not more than 25 percent of the total roof area or roof section of any existing building or structure shall be repaired, replaced or recovered in any 12-month period unless the roof covering on the entire existing roof system or roof section is replaced or recovered to conform to the requirements of this code.” Note the code measures against the total roof area or a roof section, and the clock is 12 months, so staged repairs don’t dodge the threshold. The exception is statutory, from SB 4-D (chapter 2022-269, May 2022), now codified at section 553.844(5), Florida Statutes: for a roof built, repaired, or replaced under the 2007 code or later, “only the repaired, replaced, or recovered portion is required to be constructed in accordance with the Florida Building Code in effect, as applicable.” The Legislature also blocked local governments from amending the exception by ordinance, so it applies statewide. The hinge date matters because the 2007 Florida Building Code took effect March 1, 2009 — a roof permitted from that date forward carries the exception’s protection; an older roof doesn’t.
Why this is an insurance question, not just a code question
The insurance stakes hide in the gap between what damage costs to repair and what the code requires you to do once you cross the threshold. On a pre-2009 roof, a windstorm that damages 30% of a roof section doesn’t price as a 30% repair — the code requires the entire section’s covering be replaced to current standards. Two policy features decide who pays for that difference. Repairing or replacing the damaged portion is what replacement-cost dwelling coverage addresses; the cost of bringing undamaged portions up to code is a law-and-ordinance question. And Florida’s law-and-ordinance framework has a scope limit worth reading twice: the statute says that coverage “applies only to repairs of the damaged portion of the structure unless the total damage to the structure exceeds 50 percent of the replacement cost of the structure.” How a specific claim resolves under those provisions is always policy- and adjustment-dependent — which is exactly why the coverage-selection decision below is worth making deliberately, before any storm.
The law-and-ordinance choice: 25% or 50%
Florida law makes every homeowners insurer offer you the law-and-ordinance choice up front: replacement-cost coverage excluding code-upgrade costs, or including them at either 25% or 50% of your dwelling limit — your selection. Unless you sign a written refusal, your policy is deemed to include the 25% level, and insurers must offer the 50% upgrade even if you already carry 25%. The Legislature considered this important enough to require an 18-point bold notice on every policy: “LAW AND ORDINANCE: LAW AND ORDINANCE COVERAGE IS AN IMPORTANT COVERAGE THAT YOU MAY WISH TO PURCHASE. PLEASE DISCUSS WITH YOUR INSURANCE AGENT.” The statute’s advice is ours too, with one sharpening: the age of your roof is a major input to that discussion. Working with your agent, a pre-2009 roof on a home near the coast argues harder for the 50% option than a 2020 re-roof does — because the pre-2009 roof is the one the 25% rule can turn into a full-replacement event.
What to actually do
What this means in practice. Know your permit year: pull the last full roof permit from your county’s building department — it decides which side of the March 2009 line you’re on, and it’s also the document that proves your roof’s insurance age. If you’re repairing: on a post-2009 roof, repair freely — only the repaired portion must meet today’s code; on a pre-2009 roof, get the repair scoped precisely, because the difference between 24% and 26% of a section is the difference between a patch and a tear-off. If a storm just hit: document everything before temporary repairs, keep the mitigation reasonable and receipted, and route the claim to your carrier — then loop in your agent on the coverage-selection questions the claim will surface for next time. And if you’re planning a re-roof anyway: crossing to a current-code roof ends your exposure to this rule entirely, resets your roof’s insurance age, and typically earns wind-mitigation credits — the full payoff picture is in our wind mitigation guide and the age rules in our roof rules pillar.
FAQs
What is Florida’s 25% roof rule?
A building-code threshold: repair, replace, or recover more than 25% of a roof section within 12 months and the whole section’s covering must be brought to current code — unless the roof was already built, repaired, or replaced in compliance with the 2007 Florida Building Code or later, in which case only the repaired portion must comply.
Does the 25% rule still exist after the 2022 law change?
Yes — SB 4-D didn’t repeal it; it created an exception. Roofs permitted under the 2007 code or later (in practice, on or after March 1, 2009) escape the full-replacement trigger. Roofs last permitted before then are still fully subject to it.
How do I know if my roof qualifies for the exception?
The permit record answers it: if the last full build or replacement of the roof was permitted on or after March 1, 2009, the exception applies. Your county building department’s permit search is the authoritative source, and that same record proves the roof’s age for insurance purposes.
Who pays to bring my roof up to code after storm damage?
Repairing the damaged portion is what replacement-cost dwelling coverage addresses; code-upgrade costs are the province of law-and-ordinance coverage, which Florida offers at 25% or 50% of your dwelling limit — and which by statute applies to repairs of the damaged portion unless total damage exceeds 50% of the structure’s replacement cost. How a given claim resolves depends on the policy and the adjustment — which is why the 25%-vs-50% selection deserves a real conversation before storm season.
Should I choose 25% or 50% law-and-ordinance coverage?
The statute requires both to be offered, and unless you refuse in writing your policy is deemed to include the 25% level. The inputs worth weighing with your agent: your roof’s permit year (pre-2009 roofs carry the full-replacement exposure), the home’s age and construction, and the price difference between the two levels at each carrier.
Can my city or county change the 25% rule?
Not the exception — the statute expressly bars local governments from amending it by ordinance, so the post-2009-roof protection applies statewide regardless of local code amendments.
Is your law-and-ordinance coverage sized to your roof?
The 25%-vs-50% choice deserves your roof’s permit year as an input — we run it across 20+ carriers. Call or text 813.920.8181.
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