This poor guy had to live with these stains on such a beautiful home for years. He did not know black stains on a roof could be cleaned. He called us the day after he received a flyer. We also did some paver cleaning and also cleaned the stucco.
Black stains on a roof are bacterium that feed on the limestone in the roofing shingle. Limestone is added to provide weight and strength to the shingle. Since limestone is an organic mineral made of crushed skeletal remains of marine animals, it is the perfect food for this strand of bacteria called Gleocapsa Magma. This strand of bacteria develops a UV resistant outer shell. This is why it can live on a roof for long periods of time even during long periods of drought. High pressure cleaning will not solve the problem. Power washing a roof will create damage by blowing off large amounts of roofing granules. The detergents we used are designed to penetrate this outer husk and expose the bacteria. The chlorination in the detergent will kill the spore. In treating the whole roof and not just the visually affected areas we can insure that we are getting a 100% kill ratio of the roof stain pest and can insure a clean roof for an extended period of time.
We service all towns in the surrounding Union County Area like New Providence, Cranford, Westfield, Springfield, Mountainside and more. Call us for a free cleaning evaluation and ask us about our 5 Year Spot Free Warranty.