Delaware Insurance AppraiserIndependent claim appraisal · First State

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Wind vs. Flood Damage Split Estimator

When a coastal storm brings both wind and rising water, the homeowners policy and the flood policy each cover part of the damage. This tool shows how the split changes what each one pays — and what’s left for you.

Wind vs. flood split estimatorFor coastal and creekside homes
45%
The rest is treated as flood (rising water). The split is the real dispute — try several.
Used when the deductible is flat.
Enter 0 if you have no flood policy.
Combined payment from both policies$0
Homeowners paysFlood paysYou pay
Wind portion of damage$0
Homeowners deductible$0
Homeowners payment$0
Flood portion of damage$0
Flood payment$0
Left for you to cover$0

For planning only. Results depend on the figures you enter and your policy’s terms. They aren’t a quote, an appraisal or legal advice, and nothing you enter is stored.

Why the split matters in Delaware

Coastal storms along the Delaware Bay, the Atlantic and the inland bays often bring wind damage and flood damage at the same time. Homeowners policies generally cover wind and wind-driven rain through storm-created openings and exclude flood. Flood policies cover rising water but have their own limits and deductibles. When each insurer argues the other should pay, the allocation decides your recovery.

How the estimator calculates

  • The wind share of the total damage goes to the homeowners policy, minus the hurricane deductible (percentage of Coverage A) or a flat deductible.
  • The rest goes to the flood policy, minus its deductible and capped at its building limit.
  • Anything not paid by either policy is shown as your share.

Try different splits

Move the slider and watch the payments shift. With a large hurricane deductible, a wind-heavy split may still leave you paying a lot; with no flood policy, every dollar allocated to flood is yours. That’s why documenting water lines and wind-created openings carefully is so important. All figures are illustrative.

Questions about this worksheet

Can appraisal decide the wind vs. flood split?

Sometimes appraisers value damage by cause, but whether an appraisal panel can decide causation depends on the policy and the law. Coverage disputes may need an attorney.

Do NFIP flood policies cover contents?

Only if you bought contents coverage. This tool looks at building damage only.

Why does my homeowners policy pay nothing at some splits?

If the wind portion is smaller than the hurricane deductible, the homeowners policy has nothing to pay.

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