The answer to 'why is my drip edge damaged' is that the drip edge can become damaged over time due to a variety of factors, such as weather exposure, corrosion, or improper installation. Drip edges are the metal strips installed along the edges of a roof to direct water away from the fascia board and prevent leaks, but they can become bent, cracked, or detached from the roof.
Some common signs of a damaged drip edge include visible cracks, gaps between the drip edge and the roof, or water stains on the fascia board. Causes can include high winds, heavy rain, freezing temperatures, or even damage from falling tree branches or other debris. If the drip edge is severely damaged, it may need to be replaced to maintain the integrity of the roof and prevent further water damage.