Update · Jul 1, 2026

If you've noticed dark streaks on your Collierville roof particularly on north-facing or shaded slopes you're looking at a living algae called Gloeocapsa magma. It's not smog from air traffic, it's not tree sap, and it's not just a cosmetic issue. This algae feeds on the limestone filler in your asphalt shingles, slowly degrading them from the surface down while spreading across your roofing system. It thrives in humid environments, which makes Collierville and the broader Memphis metro with our year-round humidity and mature tree canopy a perfect habitat. Beyond the structural impact, algae staining significantly reduces your home's curb appeal and is increasingly drawing attention from HOAs and insurance companies using satellite imagery. Reborn Roofing LLC offers professional roof cleaning in Collierville to safely eliminate this algae. We protect your landscaping, bag gutter downspouts, and apply a professional-grade cleaning solution that restores your roof's original appearance. For roofs that qualify, we often recommend following a cleaning with a Roof Maxx bio-oil treatment to further protect the shingles and extend the roofing system's serviceable life.