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

Last updated October 25, 2026

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The short answer

Hail Size vs. Roof Damage

Hail starts to threaten most roofs at around 1 inch in diameter, roughly the size of a quarter. At that size, stones can bruise asphalt shingles, knock granules loose, and dent metal flashings. Smaller hail, like pea sized or marble sized, usually bounces off without lasting harm unless your roof is already brittle or old.

The impact angle and wind speed matter too. Hail that hits straight down on a steep slope does less damage than hail driven sideways into vulnerable edges. Roof vents, skylights, and ridge caps are often the first spots to show damage because they are exposed and less forgiving than the main roof field.

Signs of Hail Damage

After a storm, check for missing granules on asphalt shingles, which look like bald patches. You might also see cracks, splits, or small dents in metal components. On a flat or low slope roof, hail can leave dimples that hold water, which speeds up wear and can lead to leaks.

Look inside your attic or top floor for new stains, drips, or daylight showing through the roof deck. If you see any of those, the roof may be compromised even if the damage is not obvious from the ground. A water damage inspection can document the condition and help you decide on next steps.

  • Missing granules on asphalt shingles
  • Cracks or splits in shingles or tiles
  • Dents in metal flashing, vents, or gutters
  • Water stains on ceilings or in the attic
  • Daylight visible through the roof deck
  • Loose or displaced ridge caps

Roof Age and Material

A newer roof with impact resistant shingles can handle larger hail than an older roof with brittle, sun baked material. Asphalt shingles lose flexibility over time, so a 1 inch stone that would bounce off a fresh roof can crack a 15 year old one. Metal roofs dent more easily but resist cracking, while tile roofs can crack or shatter on impact.

The roof deck matters too. A solid wood deck absorbs impact better than a thin or sagging deck. If you are unsure of your roof's condition, a local water damage pro can look at it during an inspection and point out weak spots that hail could exploit.

When to Take Action

If hail was larger than 1 inch in your area, or if you see any of the signs listed above, do not wait. Small leaks can turn into bigger water damage, including soaked insulation, rotting wood, and mold. Acting quickly after a storm can save you from more expensive repairs later.

You can start with a simple visual check from the ground or a ladder if it is safe. For a full picture, schedule a water damage inspection. The pros can identify hidden damage and tell you whether a roof leak repair or a full replacement is the better path.

Working with Pros

When you hire local water damage pros for an inspection, they will check the roof surface, attic, and interior for signs of hail impact. They may also look at the gutters and downspouts for granules that washed off. Their findings can help you file a claim with your insurance company if you choose to.

Policies vary, and your insurer decides what is covered. Be sure to document the damage with photos and notes before any repairs. If the roof needs patching or replacement, a roofing professional can handle that. For water damage that already happened inside your home, the water damage pros can help with drying and restoration.

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Phones are answered 24/7 for Mesquite and nearby communities.

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Frequently asked questions

Can pea sized hail damage a roof?

Pea sized hail, under 1/4 inch, rarely damages a healthy roof. It can cause minor granule loss on very old shingles, but usually not enough to leak. If you see other signs like cracks or missing granules after a storm, it may be time for an inspection.

What does hail damage look like on a metal roof?

On metal roofs, hail leaves small dents or dimples, especially on softer metals like aluminum. These dents can hold water and lead to corrosion over time. Look for creases near edges or seams, which can weaken the metal and cause leaks.

Should I get a roof inspection after every hailstorm?

If hail was larger than 1 inch or you notice any signs of damage, an inspection is wise. Even if you see nothing, a quick ground check for granules or dents is a good habit. An inspection can catch hidden issues before they become leaks.

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