The answer to 'roof algae growth' is that it is a common problem caused by moisture, shade, and organic debris on the roof. Algae, moss, and mildew can build up on roofs, especially in humid or shady areas, causing discoloration and potentially damaging the roofing materials over time. To address roof algae, homeowners can try cleaning the roof with a bleach solution or a specialized roof cleaning product, but for more severe cases, it's best to call in a professional roofing contractor who can safely and effectively remove the algae growth and address any underlying issues.
Roof algae can be unsightly and, if left untreated, can lead to more serious problems like leaks and rotting of the roof. Homeowners should regularly inspect their roof for signs of algae growth and address it promptly to maintain the integrity and appearance of their roof.