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How Big Does Hail Need to Be to Damage a Roof?

Last updated October 26, 2026

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The short answer

Hail Size and Roof Damage

Hail damage to a roof is not a single threshold. A stone's impact force depends on its size, weight, and the speed it falls, which wind increases. Even 1 inch hail, common in strong storms, can bruise or crack older asphalt shingles, leaving them vulnerable to leaks. Newer, more flexible roofing may handle that size without visible damage.

As hail grows past 1.5 inches, the risk rises sharply. Stones that size can dent metal flashings, crack clay or concrete tiles, and create small holes in membrane roofs. Hail of 2 inches or larger can penetrate shingles and leave the roof deck exposed. The material on your roof matters as much as the stone size.

Signs of Hail Damage

After a hailstorm, inspect your roof from the ground with binoculars if safe. Look for missing or cracked shingles, dents in metal vents or gutters, and granules from asphalt shingles collecting in downspouts. Inside your home, check attics and ceilings for water stains, damp insulation, or daylight showing through the roof deck.

Hail damage can be subtle. A tiny crack in a shingle may not leak immediately, but water can work its way in during the next rain. If you notice any signs, act quickly to prevent water damage. Document what you see with photos and notes before any repair work begins.

  • Cracked or missing shingles
  • Dents in metal roof components
  • Granules from shingles in gutters
  • Water stains on attic ceilings
  • Damp insulation or wet spots
  • Daylight visible through the roof deck

What to Do After Hail Hits

If you suspect roof damage, your first step is to prevent water from getting in. A temporary tarp can cover a damaged section until permanent repairs happen. You can place a tarp yourself if the roof is safe to access, or ask a local pro for help. For tall or steep roofs, let a professional handle it.

Next, contact your insurance company to report the damage and understand your coverage. Policies vary, and your insurer decides what is covered. Take photos of the hail, the roof, and any interior damage before you make temporary fixes. This documentation helps with any claim you file.

When to Call a Roofing Pro

A roofing professional can assess the extent of damage and recommend repairs. They have the tools to inspect safely and spot issues you might miss. If you see signs of water inside your home, or if the roof is old and brittle, a professional inspection is wise before the next storm.

For water that has already entered your home, water damage cleanup may be needed. Damp drywall, insulation, and wood can grow mold within a day or two. Moisture problems can worsen quickly in many climates, especially where winters are cold and summers are humid. Address leaks promptly.

Documenting Damage for Insurance

Thorough documentation strengthens your insurance claim. Write down the date of the storm, the estimated hail size, and the areas of your roof affected. Photograph the damage from multiple angles, including close-ups of cracks and dents. Keep receipts for any temporary repairs, like tarp materials.

Your insurance company may send an adjuster to inspect. Having clear records helps them understand what happened. If you need help documenting the damage, consider a water damage assessment service. They can provide a detailed report of the extent of the damage and what repairs are needed.

  • Date and time of the storm
  • Estimated hail size
  • Photos of roof and interior damage
  • Notes on affected areas
  • Receipts for temporary repairs

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Frequently asked questions

Can small hail damage a roof?

Yes, hail as small as 1 inch can damage older or brittle roofing materials, especially asphalt shingles. The impact can crack or bruise the shingles, reducing their ability to shed water. Even if you don't see damage, small hail can shorten a roof's lifespan.

How can I tell if my roof has hail damage?

Look for cracked or missing shingles, dents in metal components, and granules in gutters. Inside, check for water stains on ceilings or in the attic. If you're unsure, a professional inspection can identify damage you might miss from the ground.

Does homeowners insurance cover hail roof damage?

Hail damage is typically covered under standard homeowners policies, but not always. Policies vary, and your insurer decides what is covered. Review your policy and contact your insurance company to understand your specific coverage. Document all damage thoroughly before filing a claim.

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