In 2008 I started seeing black streaks on my roof and didn't know what was causing it. I called 2 places in town that did roof cleaning and both used chlorine to clean the roof. Not wanting toxic chemicals to be used I set out to find a solution that could safely clean my roof. After a lot of trial and errors I found a product that really worked great and most importantly it was safe around my landscaping and my family. I then cleaned my mom's roof, then my sister's, and so on. With a quality product and the know how I started my own roof cleaning business in 2010.