Percentage involved
How much of the roof section the repair covers.
CODE GUIDE · FLORIDA
The Florida 25 percent roof rule, and what changed in 2022.
Homeowners hear that a roof must be replaced once 25 percent of it is damaged. That is partly true, partly outdated and often confused with roof age rules for insurance. Here is how the rule actually works.
THE SHORT VERSION
Key points
- The rule is about how much of a roof section is repaired within 12 months, not how old the roof is.
- Traditionally, repairing more than 25 percent meant bringing the whole section up to current code.
- Since 2022, roofs built to the 2007 Florida Building Code or later only need the repaired part to meet current code.
- Roof age and insurance are a separate topic, covered by a different law.
THE TRADITIONAL RULE
Twenty-five percent of a roof section, within 12 months.
The Florida Building Code's existing-building provisions have long said that when more than 25 percent of a roof or roof section is repaired, replaced or recovered within a 12-month period, the entire section has to be brought into compliance with the current code. In practice, that could turn a large repair into a full replacement of that section.
The rule was written to stop older roofs from being patched indefinitely without meeting modern wind and water requirements. "Roof section" refers to a part of the roof separated by changes in plane or by other defined boundaries, so the percentage is not always measured against the entire house.
THE 2022 CHANGE
An exception for roofs built to the 2007 code or later.
In 2022 the Legislature amended section 553.844 of the Florida Statutes. If the existing roof system or roof section was built, repaired or replaced in compliance with the 2007 Florida Building Code or a later edition, then when 25 percent or more of it is repaired, replaced or recovered, only the portion being worked on has to meet the current code. The rest of the roof does not have to be replaced to satisfy the 25 percent limit.
The 2007 code took effect in 2009, so roofs permitted earlier generally fall outside the exception and can still be pushed toward a full section replacement. The permit history for the address is the best way to find out which edition applied; your city or county permit search, or your contractor, can help locate it.
THE 25-YEAR MYTH
A roof does not have to be replaced at 25 years by law.
Many people mix the 25 percent repair rule with insurance questions about roof age. There is no Florida law requiring a roof to be replaced at 25 years. Separate rules, in section 627.7011 of the Florida Statutes, limit when an insurer can refuse to write or renew a homeowners policy based on roof age, and an inspection showing remaining useful life matters for older roofs. Read roof age and insurance in Florida for that topic.
WHAT TO ASK BEFORE A LARGE REPAIR
Questions that keep the scope honest.
When the damaged area is large, ask the contractor to state the approximate percentage of the roof section involved, the code edition the existing roof was built to if known, whether the repair needs a permit and whether the building department is likely to require the whole section to be upgraded.
If the numbers point toward replacement anyway, compare both options with a written scope. Start with a roof inspection in Miami, then weigh roof repair against roof replacement.
Code edition
Whether the roof was built to the 2007 code or later.
Permit outcome
Whether the building department will require a wider upgrade.
SOURCES AND LIMITS
Where this information comes from
This guide is general information for South Florida property owners, not legal, insurance or engineering advice. Rules change; confirm current requirements with the building department, your insurer or a licensed professional for your property.
QUESTIONS WORTH ASKING
Florida 25 Percent Roof Rule: What Changed in 2022: Questions
Clear answers make it easier to choose the right next step for your property.
01Does Florida require a new roof if 25 percent is damaged?
Not automatically. For roofs built to the 2007 Florida Building Code or later, only the repaired portion must meet current code. Older roofs can still be required to upgrade the whole section.
02Is there a 25-year roof rule in Florida?
No law requires replacing a roof at 25 years. Roof age questions come from insurance rules, which are separate from the 25 percent repair rule.
03How do I know which code my roof was built to?
Check the permit history for the address with your city or county building department, or ask your contractor to look it up.
04Does the 25 percent rule apply to commercial roofs?
The existing-building provisions apply broadly, but how they apply to a specific commercial roof should be confirmed with the building department and your contractor.
KEEP READING
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