Florida 5% Named Storm Deductible & ACV Roof Schedule Audit: Avoiding Calendar-Year Hurricane Traps
In Florida and Gulf Coast commercial property binders, a "5% Named Storm Deductible" (ISO CP 03 25) is NOT 5% of the storm damage—it is 5% of the Total Insured Value (TIV) of the entire building at the time of loss. On a $6,000,000 commercial building, a 5% Named Storm deductible equals a $300,000 out-of-pocket threshold before the insurer pays $1! Worse, if the deductible is written "Per Occurrence" instead of on a "Calendar-Year Aggregate" basis, two named tropical storms in the same season trigger two separate $300,000 deductibles ($600,000 total), while a hidden Cosmetic Damage or Actual Cash Value (ACV) Roof Schedule (CP 10 36) depreciates a 12-year-old roof by 60%.
Florida Property Owner Paid $290,000 Out-of-Pocket Under 5% Per-Occurrence Named Storm Deductible & ACV Roof Schedule
A $5.0M commercial property with a 5% Per-Occurrence Named Storm Deductible ($250,000 threshold) and an ACV Roof Surfacing Endorsement suffered $310,000 in hurricane roof damage. After the adjuster depreciated the 12-year-old roof by 50% ($155,000 ACV), the entire loss fell below the $250,000 percentage deductible.
EndorseIQ™ converts Named Storm deductibles to a Calendar-Year Aggregate cap (<=2%–3% or paired with a Deductible Buy-Down) and strikes ACV Roof Schedules (CP 10 36) to restore 100% RCV valuation.
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“CALENDAR-YEAR HURRICANE DEDUCTIBLE CAP, DEDUCTIBLE BUY-DOWN & RCV ROOF VALUATION: (a) Named Storm / Hurricane Percentage Deductible shall not exceed 2%–3% of Total Insured Value (or is capped via a Named Storm Deductible Buy-Down policy above $50,000) and shall apply strictly on a Calendar-Year Aggregate basis (once exhausted in a calendar year, subsequent storms are subject only to the
What to Say to the Insurance Carrier / Underwriter & Lease Landlord
"On a $6M building, a 5% Per-Occurrence Named Storm deductible coupled with an ACV Roof Schedule means the carrier pays $0 even if a hurricane strips the entire roof. We need the Named Storm deductible written on a Calendar-Year Aggregate basis at <=3% (or paired with a Deductible Buy-Down), and full Replacement Cost (RCV) valuation restored on the roof."
Why they drafted it this way: Coastal property carriers combine a 5% per-occurrence TIV deductible with an ACV roof endorsement so that even when a $450,000 roof replacement occurs after a Category 2 hurricane, the after-depreciation ACV payout falls completely below the $300,000 deductible.
Mandatory Audit Checklist Points
- Convert Per-Occurrence Named Storm deductibles (ISO CP 03 25) to a Calendar-Year Aggregate Hurricane Deductible
- Strike Actual Cash Value (ACV) Roof Surfacing Schedules (ISO CP 10 36) and Cosmetic Hail Exclusions
- Verify whether the percentage deductible applies per affected building vs. across the entire location TIV
- Ensure Water Driven by Wind / Wind-Driven Rain is covered without requiring a structural roof hole first
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ACTIVE ENGINE: ENDORSEIQ™ (MULTI-HOP ISO & COVERAGE GRAPH)Frequently Asked Questions
How is a 5% Named Storm Deductible calculated on a Florida commercial property policy?
Under ISO Form CP 03 25, a 5% Named Storm Deductible is multiplied by the Total Insured Value (Limit of Insurance) of the building—not the amount of the loss. If your building is insured for $5,000,000 and suffers $220,000 of hurricane roof damage, your 5% deductible is $250,000—meaning the insurance company pays $0.
What is the difference between a Per-Occurrence Named Storm Deductible and a Calendar-Year Hurricane Deductible?
A Per-Occurrence deductible resets for every named tropical storm or hurricane that hits your property in a single season. A Calendar-Year Hurricane Deductible applies only once per calendar year—if a second storm hits in October after you met your deductible in August, only the small All Other Perils ($5,000–$10,000) deductible applies.
How do I redline Florida 5% Named Storm deductible ACV roof schedule commercial property audit traps in my Commercial Property & Lease COI anonymously without creating an account?
Upload your Commercial Property & Lease COI PDF or Word (.docx) draft to ExclusionRadar.com to run the "Florida 5% Named Storm Deductible & ACV Roof Schedule Audit: Avoiding Calendar-Year Hurricane Traps" defense cartridge 100% anonymously—with zero account registration, zero email login, and stateless in-memory processing. EndorseIQ™ flags Florida 5% Named Storm deductible ACV roof schedule commercial property audit exposure (typically $150,000 – $550,000+ in stacked hurricane deductibles & ACV roof depreciation; documented unredlined loss: $290,000 in stacked hurricane deductibles & ACV roof depreciation), checks for cross-section overrides, and exports a ready-to-send Microsoft Word (.docx) Track-Changes file.
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