What is the Cause of Unsightly Stains on Roofs?
Understanding and Preventing Algae and Moss Growth on Your Roof What Causes Ugly Roof Stains? Roof stains are caused by a type of algae growth called Gloecapsa Magma. Airborne spores spread the algae from home to home, where it feeds on the organic material in moist shingles. Algae infestations typically begin on the Northern […]