When hail hits a roof shingle surface granules get displaced.
How to tell if you have roof damage from hail.
You can tell your asphalt shingle roof has hail damage if you see black spots such as in the photos above.
Perhaps that most obvious way on how to tell if roof has hail damage is to note abnormalities in the appearance of the shingle s surface.
The visual signs of hail damage vary depending on the materials of the roof.
Shingles with a granular texture such as those made from asphalt or composite materials may show granular loss that exposes the underlying felt random dents with no perceptible pattern and soft spots on the surface.
This creates dark spots on the affected area where the granules have gone missing.
Hail damage roofs can be caused by hail stones that are smaller one inch and the bigger the hail stone the bigger the hail damage rooftops in the area.
Most roofing companies offer free inspections.