The answer to 'flashing curling' is that curling or lifting of roof flashing is a common roofing problem that can have several causes. Flashing is the thin metal or plastic material used to seal roof joints and edges to prevent leaks. Curling or lifting flashing is often caused by weathering, poor installation, or damage from the elements over time.
Some of the main symptoms of curling flashing include visible gaps or openings at roof edges, corners, or joints, and potential water leaks in those areas. Solutions can range from simple DIY flashing repairs to more extensive professional roof repairs or replacements, depending on the severity of the issue.