Hail damage isn't always obvious from the ground — but the mechanics of how a hailstone destroys a shingle are surprisingly predictable. Understanding what's happening helps you spot damage early, before the insurance window closes.
The Impact Sequence
When a hailstone strikes a shingle, it doesn't usually punch a hole. Instead, the impact compresses the asphalt-fiberglass mat, dislodges granules, and creates a 'bruise' — a small depression where the protective granule layer has been knocked loose. The granules in the gutters are the first visible evidence.
Why Bruises Matter
Granules protect the asphalt from UV degradation. Once they're gone, the shingle ages 3–5x faster on that spot. Over 12–24 months, those bruise locations begin to crack, then leak. A shingle hit by hail today is often a leak source in 2027.
The Insurance Window
Most Alabama policies require hail claims to be filed within 1 year of the date of loss. After that, even legitimate damage is uncoverable. Document the storm date and inspect within 90 days.
How Hail Damages Shingles: Key Takeaways
- 1"+ hail can bruise standard shingles
- Bruises are circular and soft
- Granule loss accelerates UV damage
- Leaks typically appear 12–24 months later
- Insurance window is usually 1 year
How Hail Damages Shingles — Questions Answered
Can I see hail damage from the ground?+
Almost never. Trained inspectors look at shingles up close, check soft-metal collateral damage, and chalk-test bruise patterns.
Roofing Services Related to How Hail Damages Shingles
Local Factors That Change How Hail Damages Shingles in Huntsville
North Alabama averages well over 50 inches of rain a year, and the Tennessee Valley sits in a spring severe-weather corridor. That combination — heavy rain, spring hail, and fall straight-line wind — is what turns small roofing defects into interior damage here faster than in drier climates.
Local code matters too. Roofing work inside Huntsville city limits follows the International Residential Code as adopted locally, which sets nailing patterns, drip edge, underlayment, and attic ventilation minimums — and allows no more than two roof coverings before a full tear-off is required. When a roof is replaced, the new installation has to meet current code even if the old one predated it.
What to Do Next
- 1Write down when you first noticed the issue — carriers and contractors both ask for a date.
- 2Look for granules in gutters and at downspout outlets, which signals shingle wear or impact.
- 3Avoid climbing the roof yourself; wet or aging shingles cause most homeowner falls.
- 4Have the roof and attic inspected together, since half the useful evidence is underneath.
- 5Compare any two estimates line by line: underlayment, flashing, ventilation, warranty.