The answer to 'shingles algae growth' is that algae growth on roof shingles is a common problem caused by moisture, lack of sunlight, and environmental conditions. Symptoms include dark green or black staining on the shingles, which can lead to premature aging and deterioration of the roofing material. Solutions include cleaning the roof, applying an algaecide treatment, and improving ventilation and drainage to prevent future growth.
In many cases, homeowners can address minor algae growth on their own by using a soft-bristle brush and a diluted bleach or vinegar solution to scrub the affected areas. However, for more extensive or recurring issues, it's best to call a professional roofing contractor who can properly inspect the roof, identify the underlying causes, and recommend the most effective long-term solution.