Storm Damage Roof Calculator

Assess storm damage to your roof, estimate repair costs, and calculate your expected insurance payout after deductible and depreciation

Evaluate the type and extent of storm damage to your roof

Quick presets

sq ft

Estimated Claim

$5,324

After $1,000 deductible

PRO

Professional Calculator

Calculate insurance claim payout with depreciation and deductible

sq ft
years
$
50%

Estimated Materials

60 bundles

Roof Area

1,792 sq ft

Squares

17.9

Detailed Breakdown

Roof Area1,792 sq ft
With Waste1,971 sq ft
Roofing Squares17.9
Bundles60
How to Use This Calculator
The Storm Damage Roof Calculator walks you through three critical stages after storm damage: assessing the damage, estimating repair costs, and understanding your insurance claim.

Damage Assessment tab: Select the type of storm (wind, hail, fallen tree, or tornado/hurricane) and the extent of damage from minor to total loss. Enter your roof area, age, material, and pitch. The calculator categorizes your damage severity and provides an initial estimate range based on damage type and extent. This gives you a realistic expectation before contractors or adjusters arrive, so you can identify lowball estimates.

Repair Estimate tab: Choose whether you need spot repair, slope replacement, or full replacement. The calculator prices the work based on your material type, area, and region at 2026 rates. It also factors in emergency tarping costs and additional damage to gutters, interior, or structural framing. The output is a detailed estimate you can compare against contractor bids and the insurance adjuster's scope.

Insurance Claim tab: Enter your total repair estimate, deductible (flat dollar or percentage), and policy type (Replacement Cost Value or Actual Cash Value). For ACV policies, the calculator applies depreciation based on roof age versus expected lifespan. It shows your gross claim value, deductible, depreciation (if ACV), and the expected net payout. For RCV policies, it shows the initial payment (with depreciation holdback) and the recoverable depreciation you receive after completing repairs.

The Formula
The storm damage calculator uses these formulas:

Repair Cost Estimate = Roof Area × Per-Sq-Ft Rate × Damage Multiplier + Emergency Tarp + Additional Damage Damage Multipliers: - Spot repair (under 10% of area): 0.10-0.15 × full replacement cost - Slope replacement (10-40%): 0.35-0.50 × full replacement cost - Full replacement: 1.00 × full replacement cost

Per-Sq-Ft Installed Rates (2026): - 3-tab shingles: $3.50-$5.50 - Architectural shingles: $4.50-$7.50 - Impact-resistant shingles: $5.50-$9.00 - Standing seam metal: $10.00-$18.00

Insurance Payout (RCV Policy): - Depreciation = Replacement Cost × (Roof Age ÷ Expected Lifespan) - Initial Payment = Replacement Cost - Deductible - Depreciation Holdback - Final Payment (after work done) = Depreciation Holdback released - Total Received = Replacement Cost - Deductible

Insurance Payout (ACV Policy): - Depreciation = Replacement Cost × (Roof Age ÷ Expected Lifespan) - Payout = Replacement Cost - Depreciation - Deductible - Depreciation is permanent — not recoverable

Percentage Deductible: Deductible = Dwelling Coverage × Deductible Percentage Example: $350,000 coverage × 2% = $7,000 deductible
Example Calculation
Example: Hail Damage Claim in Dallas, Texas

Tom's 2,200 sq ft roof with 12-year-old architectural shingles sustained major hail damage. His policy has a $2,500 flat deductible with RCV coverage.

Step 1: Damage Assessment
• Storm type: Hail (1.5-inch stones confirmed by weather service)
• Damage extent: Major — 3 of 4 slopes show widespread granule loss, dents, and cracked shingles
• Since damage exceeds 25% of roof area, the adjuster approves full replacement

Step 2: Repair Estimate
• Full replacement: 2,200 sq ft × $6.00/sq ft = $13,200
• Gutter replacement (hail-damaged): $2,200
• Emergency tarp: Not needed (no leaks)
• Total repair estimate: $15,400

Step 3: Insurance Claim (RCV Policy)
• Replacement cost: $15,400
• Depreciation: $15,400 × (12 years ÷ 25-year lifespan) = $7,392
• Deductible: $2,500

- Initial check from insurance: $15,400 - $7,392 - $2,500 = $5,508
• Tom hires a contractor and completes the work
• Depreciation recovery (after sending invoice): $7,392
• Total received: $5,508 + $7,392 = $12,900
• Tom's out-of-pocket: $15,400 - $12,900 = $2,500 (the deductible)

Frequently Asked Questions

How do I file a roof damage insurance claim after a storm?
Follow these steps: (1) Document the damage immediately — take photos and video of all visible damage from the ground and safely from a ladder, including close-ups and wide shots. (2) Prevent further damage by tarping any openings (keep receipts — insurance reimburses this). (3) Call your insurance company to file a claim within 24-72 hours. (4) Do NOT make permanent repairs until the adjuster inspects. (5) Get 2-3 written estimates from licensed roofing contractors. (6) Be present during the adjuster's inspection and have your contractor there if possible. (7) Review the adjuster's scope carefully — if damage is missed, request a re-inspection. The entire process typically takes 2-6 weeks from filing to receiving payment.
Should I make emergency repairs before the insurance adjuster visits?
Yes — your policy requires you to mitigate further damage. If your roof is leaking or exposed, have it tarped or boarded up immediately. Take before-and-after photos of the emergency repair. Keep all receipts. Do NOT make permanent repairs or sign a contract for full replacement before the adjuster inspects — this is the number-one mistake homeowners make. The adjuster needs to see the damage to approve the claim. Emergency tarping typically costs $300-$3,000 depending on the area covered and is fully reimbursable under most policies.
What documentation do I need for a roof damage insurance claim?
Essential documentation includes: (1) Date-stamped photos and video of all damage from multiple angles. (2) Photos of the storm event or NOAA weather records confirming the storm in your area. (3) Your roof's age and any previous maintenance or repair records. (4) Written repair estimates from 2-3 licensed contractors with line-item breakdowns. (5) Emergency repair receipts. (6) A copy of the hail or wind report from your local weather service or a service like HailTrace. (7) Your policy declarations page showing coverage limits and deductible. A thorough documentation package makes it significantly harder for the insurer to underpay or deny the claim.
Is there a time limit for filing a storm damage roof claim?
Yes. Most homeowner insurance policies require you to report damage "promptly" or "as soon as practicable," which courts generally interpret as within 30-90 days of the storm. Some states have specific deadlines codified in law — for example, Florida requires notice within 2 years of the loss event (though recent reforms have tightened this). Filing late does not automatically void your claim but gives the insurer grounds to dispute it. Additionally, statutes of limitation for filing a lawsuit against the insurer range from 1-6 years depending on your state. The bottom line: file as soon as you discover damage. Even if you find damage months later, file immediately.
When should I hire a public adjuster for my roof claim?
Consider a public adjuster when: (1) the insurance company's initial estimate seems significantly below the actual repair cost (underpayment by 30%+ is common); (2) your claim was denied and you believe the damage is covered; (3) the damage is extensive (over $15,000) and involves multiple trades (roofing, framing, interior, gutters); or (4) you lack the time or knowledge to negotiate. Public adjusters typically charge 10-15% of the final settlement and can often increase payouts by 30-50% over the initial offer. However, for straightforward claims under $10,000 with a cooperative insurer, hiring a knowledgeable roofer who works with insurance companies may be sufficient.

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