A-Plus Roof Clean has been a recognized name in the Virginia roofing industry for over 10 years.ÃÂ A-Plus Roof Clean removes and stops algae growth on asphalt roof shingles.ÃÂ A-Plus Roof Clean'sÃÂ process is simple; we let the environmentally safe solution do the cleaning. We use EPA approved solutions which are designed for cleaning asphalt shingles, cedar, metal, concrete, and tile roofs. All of these solutions are biodegradable and non-toxic. They will not harm your grass, plants, flowers, shrubberies, or landscaping. A-Plus Roof Clean makes your roof look like new again!