how to spot hail damage on a roof

https://gethaildamagedroofden.greyhavendaily.com/posts/what-to-do-when-you-have-a-hail-damaged-roof

Hail damage on a roof often looks like a new moon on a shingle, with a dark, crater-like dent surrounded by a ring of missing granules. Also look for small cracks radiating from the impact point, or even holes. Check the metal flashings and vents too; they can show dimpled or punctured surfaces. If you spot any of these signs from the ground or on a careful climb, it's wise to get a professional inspection.