Hurricane Isaias made landfall near Destin on the night of October 9, 2026 — Category 2, 105 mph — and then did most of its work somewhere else. The National Weather Service’s highest gusts are at Jay (118 mph), Oriole Beach (116), and Whiting Field (114), all west of the landfall point. Verisk puts the worst building damage in Santa Rosa and northeastern Escambia counties. Vexcel’s Gray Sky assessment, published October 14, evaluated 412,403 buildings in the high-wind zones and identified 17,860 with damage. Those buildings are not one kind of job. They are at least six, and they scope differently, bill differently, and meet the policy in different places. This is the taxonomy.
Treefall first — the Okaloosa norm
In Okaloosa County, Verisk says, the most common damage mechanism was trees falling on houses. Insurance Journal’s October 13 account is the pattern in one address: a tree through the roof structure and attic of a house on Pensacola’s north side, tarp and a roofer inside 24 hours. A puncture repair with interior water through the opening is often a modest claim — and on a Florida residential policy it runs into a percentage hurricane deductible computed on the dwelling limit, which is why so much of this storm’s residential work is landing under the deductible. Two scope facts to write down while the tarp is still on: rain entering through a wind-made opening is inside Florida’s statutory hurricane coverage (§627.4025), and the separate roof deductible cannot be applied to a hurricane roof loss or to a tree fall that punctures the roof deck (§627.701(10)). The deductible that applies is the hurricane deductible. Document the opening — the hole is the coverage fact.
Pull-off is not puncture — the Milton pattern
Karen Clark & Company’s account, quoted by Artemis, describes Milton, about 20 miles inland: downed trees and severe structural damage, partial and total roof pull-out on single-family homes, multi-family homes, motels, and grocery stores. Insurance Journal adds the apartment complex that lost most of its roof structure and the high school gymnasium that lost most of its roof. Keep two different jobs separate in the scope. Loss of roof covering with the deck intact is the 25 percent rule question below. Loss of the roof structure — deck and diaphragm — is a different code section entirely: under section 707.3.2 of the Florida Building Code, Existing Building, where the structural roof deck is removed from more than 30 percent of the diaphragm and the design wind speed exceeds 115 mph, the diaphragm, its connections, and the roof-to-wall connections get evaluated against code wind loads, and strengthened or replaced if they cannot resist at least 75 percent. A shingle count does not answer a diaphragm question.
The 25 percent rule, with the exception most scopes miss
Section 706.1.1 of the 2023 Florida Building Code, Existing Building: not more than 25 percent of the total roof area or of a roof section may be repaired, replaced, or recovered in any 12-month period unless the covering on the entire roof system or that section is replaced or recovered to code. The unit can be a section — divided by expansion joints, parapet walls, a change of elevation, roof type, or legal description — so a motel wing can cross 25 percent while the building does not. The tie-off area needed to marry new work to the existing system is excluded from the percentage. And the clock is any 12 months, not this storm: repairs permitted back to October 2025 add to Isaias work permitted now.
Then the exception, which is statute — section 553.844(5), Florida Statutes — and which a city may not amend away by ordinance: if the roofing system or roof section was built, repaired, or replaced in compliance with the 2007 Florida Building Code or any later edition, then at 25 percent or more, only the portion actually being repaired, replaced, or recovered must meet the code now in effect. The untouched remainder is not dragged into a full replacement by this section. Now place that against this coastline: Sally in 2020, Zeta in 2020, and Helene in 2024 put widespread new roofs on these same buildings — Moody’s RMS names those reroofs in its own loss commentary — and every one of them is a post-2007 roof, sitting squarely inside the exception. Moody’s names the 25 percent rule as an Isaias loss driver without stating the exception. Both scope errors are live in the field this week: writing a 2019 motel wing as an automatic full code replacement overstates the job; writing a 1998 wing as a patch understates it. The scope document needs the roof’s code-edition evidence — permit history, prior replacement records — next to the section math. Two boundary notes: the High-Velocity Hurricane Zone is Broward and Miami-Dade only, not this coast, whatever a product approval says; and the 25 percent rule is Florida’s — nothing in the record puts the same rule on the Alabama or Mississippi buildings on a three-state account.
Openings, cladding, and the building that stayed weathertight
Pensacola Beach is the opening-failure file: KCC describes wall siding and cladding damage on mid-rise and high-rise buildings, and Insurance Journal reported the Portofino Island Resort losing many windows across two towers, bedrooms open to the weather, new guest arrivals suspended. That is fenestration and cladding scope, separate from any roof percentage. KCC also describes beach-town gas stations destroyed — building, canopy, and contents as one loss, with its own questions attached. Verisk’s list rounds out the small end: fences and debris, the line items that so often sit under a percentage deductible and still need to be in the file.
And then the jobs with no opening at all. Power peaked at nearly 900,000 customers out, by Gallagher Re’s count; some Panhandle counties lost power for a majority of customers. A grocery that kept its roof and lost its cold cases, a motel that closed with the building intact: Florida’s Department of Financial Services answers those in its commercial guidance — spoilage from a storm outage is not generally covered unless the coverage was purchased, and business income generally requires direct physical damage to insured property. Those are utility-service and spoilage endorsement files, not roof claims, and the scope should say so on its face so the adjuster’s file and yours agree about which coverage is being asked.
Water, by map
The surge split on this storm is asymmetric enough to scope by address. Panama City Beach, east of landfall, recorded 5.6 feet above mean higher high water — the second-highest reading at that gauge since 1995, per Gallagher Re. Old Pass Lagoon read 3.98 feet, East Pass Destin 3.68, Pensacola 2.73. Mobile Bay’s tributaries went negative — Dog River at −2.60 feet, Mobile State Docks at −3.22 — the western wind field blew the water out. AM Best’s commentary says the same thing in market language: the strongest winds were on the western side, blowing water away from the coast and limiting surge and flood losses. So a floor-line water claim is a Panama City Beach fact pattern far more than a Mobile one, and the coverage line follows FEMA’s: water from the ground up is flood; water through a wind-made opening is the wind policy’s. The fight in the middle — surge paid on wind-only policies — is visible enough that Verisk excludes “storm surge leakage” losses from its estimate by name. Write the water line’s evidence (gauge, elevation, entry path) into the scope while it is still readable on the building.
The file discipline underneath all six job types is the same one this desk keeps: the scope is a record before it is a price — section math, code-edition evidence, the opening, the water line, the outage window. Document, Hold, Respond is the standing doctrine. The broker’s version of this storm — the three loss ledgers reconciled, the deductible mechanics, and what AM Best’s earnings-event call does not promise about January — is at Risk Coverage Hub: Three Ledgers for One Storm.
Sources: NHC Tropical Cyclone Update, October 9, 2026; NWS Mobile Post Tropical Cyclone Report, October 13, 2026; Verisk, October 13, 2026; Karen Clark & Company via Artemis, October 15, 2026; Moody’s RMS, October 16, 2026; Gallagher Re via Reinsurance News, October 15, 2026; AM Best BestWire, October 15, 2026; Vexcel Gray Sky, October 14, 2026; 2023 Florida Building Code, Existing Building, sections 706.1.1 and 707.3.2; Florida Statutes §§553.844(5), 627.4025, 627.701; Florida DFS commercial disaster guidance.