Florida's 25% Roof Rule, and What Changed in 2022

What the 25% rule actually says

Florida's Existing Building code has long carried a limit on partial roof work: no more than 25% of a roof's total area or section may be repaired, replaced, or recovered within any 12-month period unless the whole roofing system or section is brought up to current code.

The logic is straightforward. A roof that is being substantially rebuilt should end up meeting the standard the state expects today, rather than being patched indefinitely to a standard from decades ago. In a hurricane state, that standard is about how the roof stays attached to the house.

The practical effect is what you are being quoted. Once the damaged share crosses 25%, the rule turns a repair into a code-compliant replacement, and the price moves accordingly.

What changed in 2022

In 2022 the Legislature added subsection (5) to section 553.844 of the Florida Statutes. It says that where an existing roofing system or roof section was built, repaired, or replaced in compliance with the 2007 Florida Building Code or any later edition, and 25% or more of it is being repaired, replaced, or recovered, only the repaired, replaced, or recovered portion has to be constructed to the code in effect.

In plain terms: if your roof already meets the 2007 code or newer, the 25% threshold no longer forces a full replacement. You can repair the damaged part, and only that part has to meet today's requirements.

The statute opens with 'notwithstanding any provision in the Florida Building Code to the contrary', which is the drafting language that makes it override the code limit rather than sit alongside it.

So which one applies to your roof?

It turns on the vintage of the existing roof, not the age of the house and not the severity of the storm. The question is whether the roofing system was built, repaired, or replaced in compliance with the 2007 Florida Building Code or a later edition.

The record that answers it is the permit. Your city or county building department keeps the permit history for the property, and a re-roof pulled under the 2007 code or later is the evidence the statute is describing. If the last roof permit is old, or there is no permit at all for a roof that was clearly replaced, the older 25% limit may well still apply.

This is also why a contractor who cannot tell you when your roof was last permitted is not yet in a position to tell you what the code requires of it.

What to do when a contractor cites the rule

Ask them to put the code citation on the estimate. A contractor who is right will not mind writing down which provision they are relying on; one who is using the rule as a closing tool usually will.

Ask for both numbers. Even where a full replacement genuinely is required, you should still see what the repair-only scope would have cost, because that is the difference the code is actually creating.

Remember who decides. The building official reviewing the permit application determines what the code requires, not the salesperson at your kitchen table. If the two disagree, the building department is the one whose answer counts.

None of this makes a full replacement wrong. Plenty of roofs should be replaced, and a roof built to a pre-2007 standard on a coast that has since been through several hurricanes is a reasonable candidate. The point is that the decision should be made on evidence you can see.

How this interacts with an insurance claim

If a storm caused the damage, the code question and the insurance question run in parallel. Your policy may cover the cost of complying with the building code - often as ordinance or law coverage - and whether the 25% rule applies changes how much of that coverage is in play.

It also changes what a supplement should contain. If the code genuinely requires the full system to be brought up to standard, that is a documented cost rather than an upsell, and it belongs in the claim with the code provision attached. If it does not apply, a replacement-sized supplement will be hard to support.

Either way, the paperwork does the work. An estimate that names the code provision, the permit history, and the damaged percentage is one an adjuster can act on. One that simply asserts 'code requires full replacement' is not.