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We have all seen them, those black stains that seem to be on just about everyone’s roofs these days in and around Grand Rapids.. The stains give the impression that the roof is in need of replacement or worse, that there is something wrong with the house and that is causing the stains to just keep getting bigger on the roof as time goes by.
The roof does not need to be replaced nor is there anything wrong with the house. The black stains (Gloeocapsa magma) is an algae that has happened to land on the shingles and has found the limestone filler that is used in shingle manufacturing to be of its liking so it has taken up residence and is feeding and growing. Usually it will start on the north side of the roof where conditions are more favorable for the growth than the rest of the roof.
If you have a roof that is infested with these black streaks or even moss or lichen, do not fear, your roof can be cleaned safely and quickly using non-pressure, soft wash techniques. You do not have to put up with the ugly shingles any longer, KLEEN ROOF & EXTERIOR can give you back a nice clean looking roof that will perform the way it is supposed to and will also help extend the life of the roof at the same time.
DO NOT allow the use of a pressure washer of any kind up on your roof to try and clean the stains off. While there are things that a pressure washer is the proper tool to use, cleaning something as soft as asphalt shingles is not one of them. There is no reason to use pressure washing or as some try to do – a surface cleaning tool, for cleaning roofs. With the advance in soft wash cleaning techniques over the last 10 years, nothing is safer for your roof.

Get your home’s roof cleaned this spring. Give us a call for a free estimate. (616)914-9064