A storm rips shingles off a corner of your roof. The damage looks contained. Then a roofer tells you the whole roof has to come off because of "the 25% rule."
Sometimes that is true. Often it is not. Here is what the rule actually says, and why the answer for your home depends on when your current roof was permitted.
Quick Answer
- If more than 25% of your roof's area is repaired, replaced, or recovered within 12 months, the Florida Building Code generally requires the entire roofing system to be brought up to current code. That usually means full replacement.
- Big exception: since Senate Bill 4-D (May 2022), roofs built or replaced under the 2007 Florida Building Code or later only need the damaged portion repaired to code.
- The 2007 code took effect March 1, 2009. If your roof was permitted on or after that date, repair is often allowed.
- First step after damage: pull your roof's permit date from county records, then get the damage percentage documented by a licensed contractor.
What the 25% Rule Actually Says
The rule lives in the Florida Building Code. In plain terms: if more than 25% of a roof's total area is repaired, replaced, or recovered within any 12-month period, the whole roofing system generally has to be brought up to the current code.
For most homes, "brought up to current code" means a full replacement. Older roofs were built to older standards, and you cannot patch a 2003 roof into 2026 compliance.
Two details trip people up. First, the percentage is measured against the whole roof area, not one slope or one section. Second, the 12-month window means repairs add up. A 15% repair in January and another 15% in August puts you over the line.
The Exception That Changed Everything
In May 2022, Florida passed Senate Bill 4-D. It added a major carve-out to the 25% rule.
If your existing roof was built, repaired, or replaced in compliance with the 2007 Florida Building Code or any later edition, only the damaged portion has to be repaired to current code. The undamaged remainder can stay exactly where it is. Even if the damage covers more than 25% of the roof.
The 2007 code took effect on March 1, 2009. So the practical dividing line is simple. Roofs permitted on or after March 1, 2009 can often be repaired after storm damage. Older roofs that hit the 25% threshold usually need full replacement.
And this is not a temporary loophole. The 9th Edition of the Florida Building Code, taking effect December 31, 2026, keeps and refines this exception.
Why Your Permit Date Is the First Thing to Check
Before anyone talks you into a full replacement, find out when your current roof was permitted. That single date decides which side of the rule you are on.
Most Florida counties have searchable online permit records. Look up your address and find the most recent roofing permit. If you cannot find it, your county building department can pull it, and we check permit history on every estimate we do.
One honest caveat: a post-2009 permit date is strong evidence, but the roof also has to actually comply with that code. A licensed contractor can confirm what is on your roof matches what was permitted.
Not Sure If Your Roof Qualifies for Repair?
We will check your permit history, inspect the damage, and give you a free written estimate with the honest answer. We beat any written estimate.
What This Means After a Hurricane
This rule matters most in the weeks after a storm, when decisions get made fast. Say wind tears up 40% of your shingles.
- Roof permitted in 2015: the SB 4-D exception likely applies. The damaged 40% gets repaired to current code. The rest stays. Our hurricane and wind damage team handles exactly this kind of scope.
- Roof permitted in 2004: you are over 25% on a pre-2009 roof. A full replacement is almost certainly required.
- Damage at 20% on any roof: a code-compliant repair of the damaged area is generally fine either way.
Smaller leaks count too. A slow leak that spreads can push a repair scope past 25% if it sits untreated. Catching it early with professional leak detection and repair keeps the problem, and the percentage, small.
How the Rule Interacts With Your Insurance Claim
Here is where homeowners get squeezed. Your insurer scopes the claim based on the damage it accepts. The building code decides what work is legally required. Those two numbers do not always match.
If an adjuster scopes a 30% repair on a 2005 roof, the code may still require full replacement. That gap is worth fighting over, with documentation. The reverse happens too. On a newer roof, an insurer may only owe for the damaged portion because the exception allows a repair.
This is why the damage percentage has to be measured and documented honestly, by a licensed contractor, before the claim gets settled. We photograph, measure, and document everything, and our insurance claim assistance team works directly with your adjuster. If you are starting a claim, read our guide on how to file a roof insurance claim in Florida first.
Get the Percentage Documented Honestly
The 25% figure is not a guess. It is a measurement of damaged area against total roof area, and it should be backed by photos and a written scope.
Be careful with anyone who rounds the number to whatever outcome pays them best. A roofer who inflates damage to force a replacement, or an adjuster who shrinks it to avoid one, can both cost you. Verify your contractor's license before signing anything. Ours is CGC1532806, and we are licensed, bonded, and insured.
One short disclaimer: building code questions are ultimately decided by local building officials. This article is general information, not legal advice.
The Bottom Line
The 25% rule sounds scary, but it is really a two-question test. How much of the roof is damaged, and when was the roof permitted? Newer roofs, permitted March 1, 2009 or later, can often be repaired. Older roofs over the threshold usually need replacement.
Either way, do not take one verbal opinion as the final word. Get the permit date, get the percentage measured, and get it all in writing. We do all three for free, and our team brings 35+ years of combined experience to every inspection across Fort Lauderdale, West Palm Beach, Boca Raton, Miami, Orlando, and beyond.
