Shingle Magician Roof Cleaning
(585) 301-3415

 Frequently Asked Questions

Are black roof stains caused by tar, acid, dirt, or jet fuel?

No.  Roof stains are caused by a hardy type of blue-green algae called Gloeocapsa Magma.  All it takes is for one algae spore to land on your shingles and take hold and then it’s off to the races.  The algae will continue to multiply and spread, its growth fed by the limestone filler in the shingles and moisture.

Will chemical roof cleaning damage shingles, gutters, and landscaping? 

No.  If you’re using the right chemicals with the proper procedures and rinsing techniques then you have nothing to fear.  ARMA (the Asphalt Roofing Manufacturers Association) and GAF (North America’s largest shingle maker) both recommend that shingles be cleaned with non-pressure, chemical methods, and any experienced home inspector would also concur. 

Is algae on roof shingles really a signal that it's time for a new roof?

No.  Simply the presence of algae stains does not necessarily equate with needing a new roof.  In many cases all a roof needs is a good professional cleaning to restore its original look and health.  You might notice that roofers don’t like roof cleaners very much, and this is because we keep them honest.  If a roofer tells you that you need a whole new roof just because of some algae staining tell him to take a walk and look up your local non-pressure roof cleaning company instead.  You’ll save a huge amount of money.