In the first photo, you can see no dents or protrusions from the bottom side of the gutter. You can see dents in the soft metal gutter guards from the top side. These took the brunt of the impact and masked the presence of hail damage from underneath. In the second photo, you will notice very few shingle granules in the gutters. This is a sign that this hail damage is fresh. As hail damage ages, granules slide off the roof and fill up the gutters leaving the asphalt and fiberglass beneath the granules exposed to the elements.
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Signs of hail damage on your roof
In the top photo, you can see the discolored areas on shingles known as spatter. When you look closer, you can see that the granules are missing in some places and the asphalt, leaving the fiberglass exposed. The fiberglass mat is not water-resistant, allowing water to pass through the shingles, causing leaks.