The answer to 'why is my roof curling shingles' is that the shingles on your roof are likely curling due to improper installation, age, or environmental factors. Curling shingles can be a sign of significant roof damage that requires professional repair or replacement.
Common causes of curling shingles include inadequate ventilation in the attic, exposure to direct sunlight, poor quality shingles, or improper installation techniques. Over time, the shingles can become dried out, cracked, and start to curl up at the edges or in the middle. This can lead to leaks, water damage, and further deterioration of the roof.