How do I know if my roof has hail damage?
Look for randomly scattered bruises rather than a pattern: soft dark spots where granules have been knocked off, dents on soft metal like vents and gutters, and damage on the slopes facing the storm. Check whether hail large enough to matter actually fell - NOAA treats one inch in diameter as the severe threshold - before accepting anyone's assessment.
What real hail damage looks like
Hail impacts are random in placement, which is the most useful diagnostic. Damage that appears in neat lines or confined to one manufactured pattern is usually something else - foot traffic, manufacturing variation, or blistering. Genuine hail bruising is scattered across the slope, with soft spots where the mat has been fractured and granules displaced.
The easiest corroboration is not on the roof at all. Hail hard enough to damage shingles almost always leaves dents in softer metal: gutters, downspouts, vent caps, flashing, air-conditioner fins, and the mailbox. If those are untouched, be sceptical of a roof assessment that says otherwise.
Check the storm too. NOAA's Storm Prediction Center describes a severe thunderstorm watch as covering an organized episode of hail 1 inch diameter or larger and/or damaging thunderstorm winds - one inch is the conventional severe threshold, and smaller hail rarely damages asphalt shingles.
NOAA's Storm Prediction Center describes a severe thunderstorm watch as covering an organized episode of hail 1 inch diameter or larger and/or damaging thunderstorm winds.
SOURCEDWho is telling you, and what they gain
This is the one roofing question where the identity of the person answering matters as much as the answer. Storm-chasing sales crews canvass neighbourhoods after any reported hail, and their business model depends on you concluding there is damage. That does not make them wrong - real storms do real damage - but it means an unsolicited assessment is a sales call, not an inspection.
Two protections cost nothing. First, verify that hail of a damaging size actually fell at your address on the date claimed; storm reports are public. Second, get the assessment from someone who is not the person who knocked on your door - your insurer's adjuster, or a roofer you contacted yourself.
Be especially wary of an offer to cover your deductible, which is not a discount but usually insurance fraud, and of pressure to sign anything before an adjuster has seen the roof.
An unsolicited post-storm roof assessment should be verified independently before any paperwork is signed.
OUR TAKEBasis: A judgement resting on the observed competitive picture rather than on a published rule: of the sixteen results for this question, twelve were roofing or restoration contractors whose revenue depends on the homeowner concluding damage exists, and the remainder were insurers with the opposite interest.
Related questions
- What is considered hail damage on a roof?
- Fractured shingle mat and displaced granules from impact - typically a soft, dark, randomly placed bruise rather than a crack or a line. Adjusters distinguish it from blistering, foot traffic and normal granule loss, which is why the random distribution and matching dents on soft metals matter so much.
- What size hail damages a roof?
- One inch is the conventional severe threshold - NOAA uses hail one inch in diameter or larger to describe severe thunderstorm conditions. Smaller hail can mark soft metals without meaningfully damaging asphalt shingles, so dents on a gutter alone do not establish roof damage.