ROOF STAINS AND STREAKS (ALGAE)
al.gae: (Gloeocapsa magma) A blue-green plant that leaves black mold-like stains and streaks on roofs commonly found in climates with warm, humid summers. Undoubtedly you have noticed a lot of roofs in our neighborhoods that have black streaks. And judging from the number of customers who call to find about what can be done about