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What Size Hail Causes the Most Damage to a Home?

Last updated October 31, 2026

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The short answer

The Size That Breaks Through

Hailstones start causing serious trouble when they reach about 1.5 inches, roughly the size of a golf ball. At this size, the impact force is enough to crack asphalt shingles and dent aluminum gutters. Larger stones, from 2 inches up, can punch holes in older roofing and break double-pane windows. The damage often shows as missing shingles, bruised roof decking, and shattered skylights.

Once the roof is breached, water follows the hail. That water can soak insulation, stain ceilings, and warp wooden framing. The most severe home damage usually comes from hail that is 2 inches or larger, especially during a storm with high winds. Wind pushes hail sideways, turning a straight-down hit into a battering ram against walls and windows.

Impact on Roofs and Siding

Your roof takes the brunt of large hail. Asphalt shingles can crack or lose granules, which shortens their lifespan. Metal roofs may dent, and tile roofs can crack, leaving openings for water. Siding faces similar risks: vinyl siding can split, and wood siding can chip. The damage is not always obvious from the ground, so a close inspection after a storm is wise.

The age and condition of your roof matter a lot. A newer, impact-resistant roof might survive 1.5-inch hail with minor marks, while a weathered roof could fail at the same size. Local water damage pros can help you assess the condition after a storm. If you live in Fresno, keep your roof's maintenance records handy for quick reference.

  • Check for cracked or missing shingles after any large hail.
  • Look for dents on gutters, downspouts, and vents.
  • Inspect windows and skylights for cracks or shattered glass.
  • Note any water stains on ceilings or walls soon after the storm.
  • Document the date and hail size for your records.

Why Wind Makes Hail Worse

Wind speed multiplies the damage from hail. A 2-inch stone falling straight down might dent a roof, but the same stone driven by 60 mph winds can tear through shingles and break windows. Wind also lifts hail, causing it to strike at an angle that exploits weak points like eaves and roof valleys. This is why storms with strong winds often cause the most widespread damage.

Hail damage is not always immediate. A small crack in a shingle may not leak for weeks, until the next rain. Water can travel along roof slopes and appear far from the entry point. If you suspect hail damage, a professional inspection can find the entry points before they become major leaks.

What to Do After a Hail Storm

Act quickly after a hailstorm to limit water damage. Start by taking photos of any visible damage to your roof, siding, and windows. Cover broken windows or holes with a tarp to prevent rain from entering. Then check your attic for wet spots or daylight showing through the roof. The sooner you find the damage, the easier it is to manage.

For water that has already entered, dry the affected areas as soon as possible. Remove soaked carpets or furniture to a dry place. Use fans and dehumidifiers to speed up drying, which helps prevent mold growth. If you have insurance, check your policy to understand what is covered. Policies vary, and your insurer decides what is covered.

  • Photograph the damage from multiple angles.
  • Tarp any roof holes or broken windows.
  • Move wet items to a dry area.
  • Run fans to dry out damp spaces.
  • Keep receipts for any emergency repairs.

When to Call for Help

Some hail damage is easy to see, but hidden damage can be trickier. A professional inspection can reveal issues you might miss, like fractures in roof sheathing or compromised flashing. The pros can also document the damage thoroughly, which helps if you file an insurance claim. They can assess the extent and recommend the right repairs.

For water damage that has already occurred, cleanup and drying should start within a day to prevent mold. The pros can handle water extraction, drying, and sanitizing. They can also repair structural elements like roof decking or wall framing. If you need a thorough evaluation, a water damage assessment service can provide a detailed report of what happened.

Talk to someone now

Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.

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Frequently asked questions

Can pea-sized hail damage a roof?

Pea-sized hail, about 0.25 inches, rarely causes damage to a well-maintained roof. It might knock granules off old shingles, but it won't break through. The risk rises with larger stones and older materials. You can usually ignore pea-sized hail unless the storm is extremely windy.

How can I tell if hail damaged my roof?

Look for missing or cracked shingles, dents on metal vents, and granules in your gutters. Inside, check for water stains on ceilings or in the attic. If you see any signs, call a professional for a thorough inspection. They can spot hidden damage that isn't visible from the ground.

Does homeowners insurance cover hail damage?

Most standard policies cover hail damage, but the details vary. You need to review your policy to see what is included and what your deductible is. Document all damage with photos before any repairs. Policies vary, and your insurer decides what is covered.

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