The answer to 'why is my drip edge wind damage' is that the drip edge on your roof is likely not properly secured, allowing it to come loose and get damaged in high winds. This can happen over time as the fasteners work themselves loose or the drip edge material deteriorates.
Some common causes of drip edge wind damage include improper installation, lack of maintenance, and exposure to harsh weather conditions. Symptoms may include the drip edge flapping in the wind, visible gaps or separation from the roof, or the drip edge blowing off entirely during a storm.