What Is the Florida 25% Roof Rule?

What is the Florida 25% roof rule?

The Florida 25% roof rule, in the Florida Building Code — Existing Building, Section 706.1.1, states that if more than 25% of a roof area or roof section is repaired, replaced, or recovered within any 12-month period, the entire roof section must be brought up to current code. A 2022 state law created a major exception that now exempts most Florida roofs.

Does the 25% rule still force a full roof replacement?

Usually not. Florida Statute 553.844(5), added by Senate Bill 4-D and signed on 26 May 2022, says that if a roofing system or roof section was built, repaired, or replaced in compliance with the 2007 Florida Building Code or any later edition, only the repaired portion must meet current code — even when more than 25% is involved.

The 2007 Florida Building Code took effect on 1 March 2009. In practice, if your roof was installed or last replaced on or after that date, the old all-or-nothing requirement does not apply to you. Only the section being worked on has to comply.

Roofs installed before March 2009 generally still fall under the original rule.

This matters because a great deal of information online still describes the pre-2022 version. If you have been told that storm damage over 25% automatically entitles you to a brand new roof, that advice is out of date and it can lead to a claim built on the wrong foundation. We would rather tell you the accurate position up front — see our roof insurance claims page for how we approach this.

What is the 25% rule for roofing generally?

Outside Florida, the 25% rule is a general building-code principle: when a repair covers more than roughly a quarter of a roof, many jurisdictions require the whole roof section to be brought to current standards rather than patched to an older one. The intent is to avoid a roof made of mismatched code generations.

Florida codified this specifically for windstorm resistance, then softened it through SB 4-D for roofs already built to modern standards. Other states handle it differently, so a national article about the 25% rule will not tell you your Florida position.

What is the new law in Florida about roofs?

Senate Bill 4-D, passed after the Surfside condominium collapse, added subsection (5) to Florida Statute 553.844. Its effects on roofing are:

• Roofs built or replaced to the 2007 Florida Building Code or later are exempt from the mandatory full-replacement trigger
• Only the repaired, replaced, or recovered portion must comply with current code
• Local city and county governments cannot pass ordinances overriding this statewide exception

A separate Florida law — the 15-year roof rule under Statute 627.7011(5) — stops insurers refusing to write or renew a policy purely because of roof age, where the roof is under 15 years old. The two are often confused. They are unrelated.

How do I know if my roof qualifies for the exemption?

Permit history is the deciding evidence. Pull the permit for your last reroof from your county or city building department. If it was issued on or after 1 March 2009, the SB 4-D exemption almost certainly applies to that roof section.

Two complications come up regularly:

• Unpermitted work. A reroof done without a permit cannot be shown to have complied with the 2007 code, so it may not qualify.
• Mixed roofs. Additions and re-roofed sections can date from different years, which means one section qualifies and another does not.

We check permit history as part of every free roof inspection so this is established before a claim is filed rather than argued afterwards.

How is the 25% of roof area calculated?

The percentage is measured against the affected roof section, not always the whole house. A roof section is an individual plane bounded by expansion joints, valleys, ridges, or parapet walls. A home with several distinct planes may be assessed section by section.

The 12-month window is cumulative. If 15% of a section was repaired six months ago and a new storm damages a further 12%, the combined total crosses the threshold.

Measurement should be done with a tape and aerial measurement tools, not estimated by eye. A written report should state damaged square footage, total section area, the resulting percentage, and the permit date establishing whether the exemption applies.

Does the 25% rule mean insurance pays for a full roof?

No, and this is the most common misunderstanding we encounter. The 25% rule is a building code requirement. It is not an insurance entitlement. What your insurer pays is determined by your policy, not by the code.

Three policy factors decide the outcome:

• Replacement Cost Value versus Actual Cash Value. An ACV roof endorsement pays depreciated value, which on an older roof can be dramatically less than replacement cost.
• Ordinance or Law coverage. Where code genuinely does require broader work, this is the coverage that pays for the code-driven portion. Not every policy carries it.
• Deductible. Hurricane deductibles are typically a percentage of the insured value rather than a flat sum.

Where the code does require work beyond the damaged area, that requirement is real and should be documented and presented. Where it does not, claiming otherwise damages your credibility with the adjuster on everything else in the scope. Our Florida roof insurance claim guide covers the full process.

What if my insurer disputes the calculation?

If your insurer disagrees with the damage assessment or the code position, you have several routes under Florida law:

• Request a re-inspection with your contractor present and documentation in hand
• Invoke the appraisal clause in your policy, which brings in neutral appraisers
• Engage a licensed public adjuster to negotiate for you
• File a complaint with the Florida Department of Financial Services

We provide supplemental documentation for re-inspections and disputes at no charge to active clients. Reports reference the applicable code sections and statute by number.

Does the 25% rule apply to an older roof?

Yes. A roof installed before 1 March 2009, or one with no permit record, generally remains subject to the original rule — so damage above the threshold can require the full section to be brought to current code.

If your roof predates 2009, book a free pre-season inspection before hurricane season. Documented evidence of pre-storm condition is the single most useful thing you can hold when filing any claim. If the roof is near end of life, our roof replacement and pricing pages set out what to expect, and financing is available.

How One World Roofing helps

The 2022 change made this more technical, not less. Determining your position now requires permit research, section-level measurement, and a correct reading of the statute — which is exactly why homeowners should not attempt it alone.

1. Free inspection with complete damage documentation before the adjuster attends
2. Permit history check to establish whether the SB 4-D exemption applies to each roof section
3. Section-level measurement with square footage, total area, and percentage in writing
4. We attend the adjuster inspection and present the findings and the applicable code position
5. Supplemental documentation and dispute support at no charge to active clients

We are a licensed and insured Florida roofing contractor — see our licenses and manufacturer certifications. For storm damage we respond 24/7 across Central Florida, including Orlando and Kissimmee.

Call (321) 214-7663 or request a free inspection.

One World Roofing LLC — FL License CCC1330134

This page explains Florida building code and insurance concepts for general information. It is not legal advice. Your position depends on your specific roof, permit history, and policy wording.