Florida's 25% roof rule says that if more than a quarter of a roof is repaired, replaced or recovered in any 12-month period, the roof covering on the whole roof or roof section has to be brought up to the current Florida Building Code, unless the roof was built under the 2007 code or later. The 15-year roof rule is a separate insurance law: an insurer can't refuse to write or renew a homeowners policy solely because of the age of a roof under 15 years old, and an older roof gets the chance to pass an inspection first.
Both rules changed in 2022, and both get garbled on social media. Below is what the code and statutes actually say, with section numbers, and what they mean for a house in Polk County. This is general information, not legal or insurance advice. Your local building department decides what a permit requires, and your insurance agent is the person to ask about your policy.
What does Florida's 25% roof rule actually say?
The rule is Section 706.1.1 of the Florida Building Code, Existing Building, 8th Edition (2023). The text reads:
"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."
Three details in that sentence matter more than the headline number.
- It counts a 12-month window. Two smaller repairs a few months apart can add up past 25 percent.
- It measures the total roof area or a roof section. "Roof section" is a defined term in the code, so how your roof is divided can change the math. That call belongs to the building official.
- It covers repairs, replacements and recovers. The Florida Building Commission's analysis of the 2023 edition notes the section was revised so that once the rule is triggered, it applies to a roof replacement and to a roof recover.
What changed in 2022?
During a special session in May 2022, the Legislature passed SB 4-D, which became Chapter 2022-269, Laws of Florida, effective May 26, 2022. It added subsection (5) to Florida Statute 553.844:
"if an existing roofing system or roof section was built, repaired, or replaced in compliance with the requirements of the 2007 Florida Building Code, or any subsequent editions of the Florida Building Code, and 25 percent or more of such roofing system or roof section is being repaired, replaced, or recovered, only the repaired, replaced, or recovered portion is required to be constructed in accordance with the Florida Building Code in effect, as applicable."
The same subsection told the Florida Building Commission to put this exception into the code, and it says a local government may not amend the exception by ordinance. The exception now appears word for word under Section 706.1.1.
When a repair crosses the 25 percent line within 12 months, the two cases compare like this:
| Roof was built, repaired or replaced under | What has to meet current code |
|---|---|
| A code edition older than the 2007 Florida Building Code | The roof covering on the entire roof system or roof section |
| The 2007 Florida Building Code or a later edition | Only the repaired, replaced or recovered portion |
One more date is worth knowing. The 9th Edition (2026) of the Florida Building Code takes effect December 31, 2026. The Commission's published analysis of changes for the 9th Edition Existing Building volume does not list a change to Section 706.1.1, though it does change some underlayment details for roof replacements.
Which roofs qualify for the 2007 exception?
The test is whether the roof was "built, repaired, or replaced in compliance with" the 2007 Florida Building Code or a later edition. The 2007 code took effect on March 1, 2009, after the Commission pushed it back from October 1, 2008. A roof permitted after that date was generally reviewed under the 2007 code or a newer one. Roofs installed before then generally were not.
The date is a starting point, not the answer. What counts is compliance, and the building official decides whether a given roof qualifies. The permit history for your address, kept by the city or county building department, is the best record of when the roof went on and under what code.
For a Polk County home whose roof went on before March 2009 and has not been fully replaced since, the exception generally does not apply, and the original 25 percent rule still governs.
What does it mean if a storm damages part of my roof?
A strong afternoon thunderstorm or a hurricane can take shingles off one slope and leave the rest alone. The code question is the same either way: how much of the roof area or roof section is being repaired, replaced or recovered within 12 months, and what code was the roof built under?
Working through it in order:
- Measure the damaged area against the whole roof or roof section. Include any other repairs to that roof in the past 12 months.
- Check the permit history to see when the roof was installed and under which code edition.
- If the damaged area is 25 percent or less, the 25% rule does not force a full replacement. The repaired area still has to meet code. See our page on shingle roof repair in Polk County for what a typical repair involves.
- If it is more than 25 percent and the roof predates the 2007 code, the roof covering on the entire roof or section has to be replaced or recovered to current code. That is a shingle roof replacement or a recover where Section 706.3 allows one.
- If it is more than 25 percent and the roof was built to the 2007 code or later, only the repaired portion has to be built to current code.
When a full replacement does happen on a site-built single-family home, Florida Statute 553.844(3)(a) requires it to include a secondary water barrier and strengthened or corrected roof-deck attachment and fasteners. Nothing in the 2022 exception stops an owner from choosing a full replacement anyway, because the exception only removes the requirement.
For homeowners in Lakeland and the rest of Polk County, the permit goes through whichever local government covers the address. Under Florida Statute 553.80, each local government enforces the Florida Building Code, so the building official there makes the final call.
How does roof age affect insurability in Florida?
The 15-year rule is in Florida Statute 627.7011(5), added by SB 2-D during the same 2022 special session. It applies to homeowners policies issued or renewed on or after July 1, 2022. By roof age, it says:
| Roof age | What the statute says |
|---|---|
| Less than 15 years | An insurer may not refuse to issue or renew a homeowners policy "solely because of the age of the roof." |
| 15 years or older | Before requiring replacement as a condition of a policy, the insurer must allow an inspection by an authorized inspector, at the homeowner's expense. |
| 15 years or older, inspection shows 5+ years of useful life left | The insurer may not refuse to issue or renew solely because of roof age. |
A few limits are written into the same section:
- "Solely" is the key word. Subsection (6)(c) preserves an insurer's ability to decline for underwriting criteria or other lawful reasons. The statute protects against age alone, not against a roof in poor condition.
- The inspector has to be approved by the insurer. The list of authorized inspectors includes licensed home inspectors, certified building code inspectors, licensed general, building, residential and roofing contractors, engineers and architects.
- Mobile home policies are excluded. Subsection (6)(b) says the section does not apply to them, which matters for mobile home owners in Polk County.
- Age is measured from the last full replacement. Subsection (5)(d) counts from the last date 100 percent of the roof surface was built or replaced to the code in effect at the time.
The statute does not set premiums or say what any insurer will charge. For questions about your own policy, talk with your agent.
Talk with a local roofer before you decide
Titan Blue Ventures is a state-certified roofing contractor based in Auburndale, licensed and insured, working across Polk County. If your roof has damage on part of it, we can look at it, measure the affected area, and explain the repair and replacement options as the code reads them. The building department still makes the permit decision. Contact Titan Blue for a free estimate.