Proper maintenance of your flat metal roof is simple but critical to its longevity. Regular inspections should be carried out twice a year and after significant weather events. They help detect and eliminate potential problems at early stage. Keep roof clear of debris, leaves and branches. This will help prevent moisture accumulation and subsequent corrosion. Drainage systems efficiently prevent water accumulation, so it should be cleaned at least every season. Prompt repair of any minor surface damage such as scratches or dents will protect the inner layer of metal. Your flat metal roof can remain in excellent condition for decades with proper care.