The answer to 'flashing curling' is that flashing curling is a common roofing issue caused by improper installation, weathering, or damage. Flashing is the thin metal or plastic material used to seal joints and gaps in the roof, like around chimneys, vents, and edges. Over time, the flashing can become loose, cracked, or start to curl up at the edges, which can lead to leaks and water damage.
Some common causes of flashing curling include exposure to UV rays, temperature changes, poor sealant application, and physical damage. Symptoms include visible curling or lifting of the flashing, cracks or holes, and water stains or leaks around the affected areas. To fix curling flashing, you may be able to re-seal it with a roofing sealant, but in many cases it's best to have a professional roofer replace the damaged flashing to ensure a proper, long-lasting repair.