The answer to 'how to clean flashing repair' is to thoroughly clean the flashing around your roof to remove any dirt, debris, or corrosion. This will help ensure the flashing is functioning properly and preventing leaks. Start by using a stiff-bristle brush and mild detergent to scrub the flashing, then rinse it clean with water. You may also need to use a metal polish or rust remover to address any corrosion.
It's important to inspect your flashing regularly, typically once or twice a year, and clean it as needed. If you notice any significant damage or issues, it's best to call a professional roofing contractor to evaluate and make any necessary repairs.