Florida code
The Rule That Decides Repair or Replacement
More Florida roofing money turns on this one threshold than on any price negotiation. Most homeowners hear about it for the first time halfway through a job.
Photographs and a written scope. If the honest answer is that it can wait another season, you will get that answer.
What it says
Florida building code limits how much of a roof can be repaired or replaced within a twelve-month period before the entire roofing system must be brought up to current code. Stay under the threshold and you have a repair. Cross it and, historically, you had a full replacement.
The practical effect is severe. A repair might be a few thousand dollars. The same damage measured one percentage point the other side of the line can be a replacement costing many times that. It is the single largest variable in most residential roofing jobs, and it is measurable before anyone starts.
The exception
The 2022 change most people missed
In 2022 the Legislature softened this. Where the existing roof was built to the 2007 Florida Building Code or later, repairs beyond the threshold no longer automatically force a full replacement of the whole system.
Whether your roof qualifies depends on when it was permitted, which means the permit history for your address is worth pulling before you accept anyone's assessment. A contractor still quoting the old rule on a 2010 house is either out of date or hoping you are.
This page describes the rule in general terms so you can ask better questions. It is not a code determination. The authority having jurisdiction over your address makes that call, and code requirements change — confirm before you rely on any of it.
Before, not after
How we handle it
- 01Measure the actually affected area rather than estimating it from the driveway.
- 02Check the permit history for your address to establish which code edition your roof was built under.
- 03Tell you which side of the threshold you are on, in writing, before any price is agreed.
- 04Confirm the interpretation with the building department where the case is genuinely borderline.
- 05Put an explicit deck-replacement allowance in the contract, so a bad deck is not a mid-job surprise.
One question
The question to ask every bidder
"What percentage of my roof is affected, how did you measure it, and what happens to this price if the building department disagrees?" A contractor who has done the work will answer in a sentence. One who has not will change the subject to material colours. It is the cheapest test available to you and it takes about ten seconds.
FAQ
Common questions
- What is the 25% rule in plain terms?
- Florida code limits how much of a roof section can be repaired or replaced within a twelve-month period before the whole roofing system has to be brought up to current code. Cross the line and a repair becomes a replacement.
- Is there an exception?
- Yes, and it matters. Changes made in 2022 mean that where the existing roof was built to the 2007 Florida Building Code or later, repairs beyond the threshold do not automatically force a full replacement. Whether your roof qualifies depends on when it was permitted.
- Can I split the work across two years to avoid it?
- The rule is written around a twelve-month period precisely to stop that. Deliberately staging work to evade a code requirement is not something we will help you plan.
- Who decides whether I have crossed it?
- The authority having jurisdiction over your address — your city or county building department. Not the contractor, and not us. What we do is establish the percentage honestly and tell you before the work starts.
- Why does this get discovered late?
- Because a contractor who has not measured it can start a repair, find the affected area is larger than assumed, and stop mid-job. That conversation is much worse once the roof is open.
- Does this apply to flat roofs too?
- The threshold concept applies across roofing work, with the details differing by roof type and by edition of the code. Ask us about your specific roof and address rather than assuming.
Next step
Find out which side of the line you are on.
An inspection, photographs of what we found, and a written scope. If the honest answer is that it can wait another season, that is the answer you will get.