Roof staining organisms such as algae, lichens and moss feed off the organic material in your roof. Meaning they are simply eating the roof. The common breed of bacteria found on South Carolina roofs is known as Gloeocapsa Magma. This bacteria travels through the air and finds it’s way to your roof, where it clings onto the surface and begins to grow just like a plant. The longer the issue is left untreated, the more damage they will cause.