The answer to 'fascia curling' is that the most common causes are exposure to sunlight, moisture damage, and improper installation. Symptoms include the fascia boards (the horizontal boards that cover the roof's edge) pulling away from the roof and becoming wavy or curled. This can lead to leaks, rot, and other structural issues.
Addressing fascia curling typically requires a combination of repairs and preventative measures. If the damage is minor, you may be able to fix it yourself by re-attaching the fascia, sealing gaps, and painting or coating the boards to protect them. However, for more significant curling or damage, it's best to call a professional roofing contractor to assess the issue and make the necessary repairs.