The answer to 'why is my flashing hail damage' is that hail can cause significant damage to your roof's flashing. Flashing is the thin metal or plastic material used to seal joints and gaps around chimneys, vents, and other roof penetrations. When hail strikes the flashing, it can dent, crack, or even completely tear the material, compromising its ability to prevent water leaks.
Hail damage to flashing is a common problem, especially in areas prone to severe storms. The size, speed, and angle of the hail impact can all contribute to the extent of the damage. Symptoms of hail-damaged flashing include visible dents, cracks, or holes, as well as signs of water intrusion around the affected areas.