How do I prove storm damage vs. normal wear and tear?
By Tom Kovack Jr., CEO · July 2, 2026 · Homeowner guide
Across 556 documented roof claims, DumbRoof-built packages won 197 and recovered $7.25M.
Short answer
Storm damage shows a random, directional impact pattern — scattered bruises, fractured granules, and matching dents on soft metals — concentrated on storm-facing slopes and tied to a verified NOAA storm date. Wear and tear shows uniform deterioration: even granule loss, curling, and edge wear across all slopes. Pattern and timing tell them apart.
The signature that separates storm from wear
- 01Pattern — storm damage is random and scattered; wear is uniform across the field.
- 02Directionality — storm damage concentrates on storm-facing slopes; wear is even on all slopes.
- 03Granules — storm knocks granules off freshly, exposing unoxidized mat; wear thins them gradually and uniformly.
- 04Collateral — storm dents soft metals (gutters, vents) in the same event; wear leaves no event-linked collateral.
- 05Timing — storm damage matches a verified NOAA storm date; wear has no event and is gradual.
The proof stack that beats “wear and tear”
- 01NOAA storm-date match — a verified hail/wind event on the loss date at your coordinates.
- 02Random impact distribution — documented across multiple slopes, heavier on the storm-facing side.
- 03Fresh-damage markers — exposed, unoxidized mat and directional bruising (recent, not aged).
- 04Soft-metal collateral — same-event dents that cannot be explained by age.
People also ask
What size hail causes roof damage?
Hail about 1 inch in diameter (quarter-size) is the threshold where meaningful roof damage begins for most materials. Larger stones crack shingles, dent metal, and fracture membranes.
How do I document hail damage on my roof?
Use a three-tier photo method — wide (the slope), mid (the impact pattern), and close (a single strike beside a coin for scale) — plus soft-metal collateral, a matching NOAA report, and chalked test squares.
Can an old roof still have a valid storm claim?
Yes. An old roof and a storm-damaged roof are not the same thing. Storm-specific forensic evidence — a matching NOAA date and random impact pattern — is what beats the “it's just old” argument.
Keep going
Educational information, not legal advice. Coverage depends on your specific policy and state law. Read your policy or consult a licensed professional. DumbRoof is documentation software you use on your own claim — it is not a public adjuster or law firm and does not act on your behalf.
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Upload your inspection photos and measurements. DumbRoof generates a forensic causation report, an Xactimate-style estimate, and a scope comparison — in about 15 minutes.
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