ROOFTOP® does not require special maintenance. To provide you with a peace of mind, ROOFTOP® was designed and formulated to have a long lifespan and minimum maintenance. Rain water will most often wash away the dirt and grime on the upper surface of the roof, so it usually does not require special cleaning. For the bottom surface, in case any dirt remains, gently wipe off with soft cloth. Avoid using brush or other sharp instrument as it may damage the roofing sheet. For more information regarding cleaning, please do not hesitate to contact us.