What effect does hailstone impact have on shingles?

Hailstone impact on shingles primarily leads to the creation of fractures. When hailstones hit the roof surface, the force can cause cracks to develop in the shingle material. These fractures compromise the integrity of the shingles, making them more susceptible to water infiltration and further damage from subsequent weather events.

Although other effects such as discoloration or loss of granules can occur due to aging or prolonged exposure to the elements, these are not direct consequences of hail impacts themselves. Curling is generally associated with aging or improper installation rather than hail impacts. The focus on fractures underscores the immediate structural risk posed by hailstones to roofing materials, which can lead to significant long-term problems if left unaddressed.