How Does Hail Size Affect Roof Damage?

Hail under one inch in diameter often causes subtle damage. It can knock granules off asphalt shingles, leaving bare spots that accelerate weathering. Over time, those spots let moisture seep into the matting beneath, which can lead to rot and leaks that show up months later.

Small hail can also dent soft metals like aluminum or copper flashing. The dents create low spots where water pools, inviting corrosion. Humid climates with frequent rain can speed up that wear. You may not see damage from the ground, so a close look by a pro is worth considering.

Hail larger than two inches can punch holes in asphalt shingles and crack clay tiles. It can also dent or tear metal roofs, especially if the metal is thin or already corroded. Large hail often damages skylights and roof vents, leaving openings for rain to pour in.

The force of large hail can also loosen the seal around chimney flashing. That creates a direct path for water to run down interior walls. If you see daylight through a roof hole or water stains on your ceiling, act quickly. Local water damage pros can help mitigate the water and inspect the roof.

After a hailstorm, check your roof from the ground for obvious signs like missing shingles or holes. Inside, look for water stains on ceilings or walls, especially near chimneys and skylights. If you find any, place a bucket under the leak and clear the area to prevent slip hazards.

Consider having a water damage inspection to document the condition of your roof and attic. That helps you decide whether to file a claim with your insurance company. Policies vary, and your insurer decides what is covered. If you live in Detroit, keep a record of the storm date and any photos you take.

• Photograph any visible roof damage
• Note the date and time of the storm
• Check attic for damp insulation
• Remove debris from gutters
• Watch for leaks over the next few days