How to Tell Hail Damage on a Dimensional Roof

Hail can cause significant damage to roofs. The extent of damage depends on the type of roof as well as the severity and frequency of hailstorms. While other weathering factors wear out a roof, damage done by hail leaves definite signs. Dimensional shingle roofs, also known as architectural shingles, have two layers of shingles, unlike asphalt shingles. This gives them a 3-D look. As a result of the thicker material, they are more resistant to hail and wind than asphalt shingles. These roofs last for 40 to 50 years under normal circumstances. However, they must be checked for damage after a hailstorm.

Tall ladder
Magnifying glass
Outdoor/gardening gloves

Instructions

- 1
  
  Roof weathering begins when hail removes granules on shingles to expose the layers inside.
  
  Use a tall ladder to climb onto the rooftop. Observe the shingles carefully. If the granules covering the shingles have weathered away, this could be hail damage. As a result, the underlying asphalt will be exposed to ultraviolet radiation. Look for any shingles that look like potato chips. This is due to sun damage after the granules are lost.
- 2
  Look for "bruises" and dark spots on the shingles. This is where the granules have been washed away by hail to expose the fiberglass. If the damage was recent, the spot will appear shinier. Older damage shows duller spots. They may look like dimples or dents.
- 3
  Look for shingles with a bubbled appearance. This is another sign of hail damage. Touch the shingle to check if it has turned brittle. This type of damage requires immediate replacement as brittle shingles will break and be blown away by the wind.
- 4
  Examine gutters, swimming pools and other places where granules might have fallen from the shingles.
- 5
  Examine flashing, vent stacks and ridges for dents. These indicate hail damage.
- 6
  Be alert to neighborhood activities. If a neighbor's roof is being repaired, chances are yours needs repair too, possibly from hail damage.

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