We had extremely large black streaks on our garage and house roofs that looked as if it was coal dust painted in huge 3′ vertical designs over the north sides of these roofs. The crew came out and explained that this condition really wasn’t caused by acid rain but an algae that was growing on the roof. They explained that they had a chemical process that did away of this growth and would restore the roof shingles to like new condition. My wife was concerned that this chemical process could cause harm to her flowers and other landscaping, but they assured her that his process was environmentally friendly. We have to say that after this process, our roof looks like new and there was no damage at all to any of our landscaping. The crew was very professional and I would highly recommend this company for anyone looking to make their roof look like new again.

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