If you have stains and or streaks on your roof, these stains contain a bacteria called “Gloeocapsa Magma”, that is actually feeding on the limestone in the shingles, causing early deterioration. Getting a professional to clean your roof can prolong the life of your shingles. Again, we never use high water pressure cleaning, but use the soft wash method, with the proper solution of detergents to remove the algae, mold and mildew from your roof.