The Reality of SB 4-D Roof Repairs

Florida Insurance • Building Code Analysis

The Reality of SB 4-D Roof Repairs

The 25% Rule and the Patch-Job Problem in Florida Insurance

For the past several years, Florida insurance regulators have been rewriting the rules in ways that, in practice, lean hard toward the carriers instead of the people who actually pay the premiums. Lawyer fees, claim-reporting deadlines, reopening windows, mid-term policy changes — you could fill a book with the list.

I’m not writing that book today. I’m zeroing in on one specific piece of legislation: SB 4-D, and how carriers are using it to justify repairs that don’t hold up.

Why the Bill Exists

For decades carriers complained — loudly and with mixed success — that they were forced to replace an entire roof system when only a portion was damaged. Classic example: a two-level split house. Detached first-level garage, main roof over the second story. Ten squares of damage on the garage roof, and suddenly the carrier was on the hook for the whole 50-square main roof. The industry called it the “all-or-nothing” trigger.

SB 4-D was written to kill that trigger on code-compliant roofs. Fair enough on the surface. Truly isolated, independent roof planes that already meet modern wind codes shouldn’t automatically force a full commercial or residential replacement. The legislature carved out space for that reality.

What the Statute Actually Changes

SB 4-D amended F.S. § 553.844 by adding subsection (5). Stripped down: if an existing roofing system or roof section was built to at least the 2007 Florida Building Code, and 25% or more of that roofing system or roof section is being repaired, only the repaired, replaced, or recovered portion has to meet current code.

The statute is doing two distinct jobs with two distinct terms:

Term 01

Roof Section

The specific area considered when calculating and applying the 25% threshold analysis.

Term 02

Portion

The actual physical area being repaired, replaced, or recovered, which current code requirements attach to.

Those words aren’t interchangeable, and the split isn’t accidental — it’s the whole mechanism. The statute tells you which code edition governs the repaired square footage. It says nothing about whether a patch is a technically valid repair method in the first place. That gap is where the disputes start.

Where Carriers Overreach

The Carrier Strategy

The carrier argument, boiled down, is: the 25% rule applies, so we only owe the damaged area. That conclusion goes further than the statute actually supports. SB 4-D answers a code-edition question, not a repair-method question — and desk adjusters routinely treat “you only owe current code on the repaired portion” as if it meant “a patch satisfies our obligation, full stop.”

×It doesn’t. FBC § 706.1.1 still requires that the repaired portion comply with applicable code requirements, including requirements governing integration with existing construction.

Why the Patch Argument Falls Apart on the Roof

Roofing systems aren’t collections of independent pieces — they’re integrated assemblies designed to shed water as a whole. FBC § 706.1.1’s tie-in requirement is where the “just patch it” theory dies mechanically, regardless of what the 25% exception allows on paper:

  • ×

    Hips and ridges do not automatically create separate roof sections under FBC § 202. Cut into a continuous slope and you’re cutting into a single, unified roof area — the presence of a hip or ridge doesn’t settle that question on its own.

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    You cannot glue new asphalt shingles, tiles, or metal panels onto old material and call it a day. Proper repairs require tying into adjoining areas, valleys, hips, or ridges to maintain a sealed system.

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    Manufacturer specifications still govern. Ripping up part of a roof compromises the interlocked surrounding materials and underlayment. If a clean, code-compliant tie-in can’t be achieved without damaging older, brittle adjoining stock, a localized patch may not be physically feasible or code compliant — regardless of which code edition SB 4-D says applies to it.

Carriers love to take the narrow architectural carve-out meant for detached canopies or truly independent split-level planes and stretch it across ordinary hip-and-gable residential roofs, using SB 4-D’s 25% exception as cover for a repair method the tie-in requirements won’t actually support.

Applying It: A Worked Example

Take a standard hip roof, eight squares total, three squares of hail damage confined to one slope. The carrier’s estimate invokes the 25% rule, approves three squares, and calls it done.

25%
Repair Threshold
8
Roof Area — Squares
3
Hail-Damaged Area

Here’s where the practitioner’s job actually starts. The carrier’s calculation treats “roof section” and “repaired portion” as the same number — three out of eight, under 25%, current code doesn’t attach to the rest. But FBC Chapter 2 defines “Roof Section” to specifically exclude the area required for a proper tie-off with the existing system. That exclusion isn’t a side note — it’s baked into the statutory definition itself.

That means the tie-in work at the hips, ridges, and adjoining slopes isn’t optional scope the adjuster can wave off as “not part of the repair.” It’s mandatory scope that FBC 706.1.1 requires to make the repaired portion code-compliant — and it doesn’t even count against the 25% threshold, so the carrier can’t use “we’re already near the cap” as a reason to skip it either way.

The Authority Behind It

This isn’t a novel reading. The Florida Building Commission addressed it directly in Declaratory Statement DS 2021-007 (April 2021):

Declaratory Statement DS 2021-007 — April 2021

The Commission held that related work “for the purpose of connecting repaired areas to unrepaired areas (roof areas required for a proper tie-off) shall not be considered part of the roof repair in question” — and therefore isn’t counted toward the 25% threshold at all. FRSA’s Codes Committee reached the same conclusion independently, tying it back to the Chapter 2 “Roof Section” definition’s tie-off exclusion language.

Put together with FBC 706.1.1’s integration requirement, the practitioner’s argument writes itself: the 25% exception was never meant to authorize a floating patch. It was meant to answer a code-edition question for genuinely separable roof areas — and tie-in work is, by the Commission’s own reading, outside that calculation, not exempt from it.

Using This at Appraisal or in a ROR Response

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    Don’t let “the carrier’s estimate is within the 25% rule” go unchallenged as a complete answer. Ask whether the estimate includes tie-off scope at hips, ridges, and adjoining slopes — if it doesn’t, the estimate is incomplete on its own terms, independent of any coverage dispute.

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    Cite DS 2021-007 directly in your position statement or umpire submission. It’s Commission-level guidance, not a PA’s interpretation, which carries more weight with an umpire or in a mediation than a policy-intent argument alone.

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    Separate the two disputes. Whether the carrier owes full replacement is a coverage/causation question. Whether the carrier’s proposed repair scope is code-compliant is a completely separate question that doesn’t depend on winning the first one — and it’s often the stronger, more objectively provable argument.

The Real Stakes

A patchwork of weathered old shingles next to shiny new ones doesn’t necessarily restore weather resistance, system continuity, reasonable uniform appearance, or manufacturer-supported performance. SB 4-D never changed that. It changed which code edition the repaired portion has to meet — it didn’t authorize desk adjusters to use that as a blanket justification for undersized patches on continuous roof systems.

The building code sets the minimum standard for the materials used. The insurance policy sets the actual obligation to restore the property to its pre-loss condition.

Reference: F.S. § 553.844(5) • Florida Building Code § 706.1.1 • Declaratory Statement DS 2021-007