As most of the roof cleaning Indiana companies told me that bleach was a safe cleaner to use in roof cleaning; I knew I wanted to use what the major shingle makers recommended. They actually suggest using bleach, so I knew right away  that’s what I was going to use on my customer’s roofs because I knew I couldn’t go wrong.

Companies like GAF, Owens Corning, and the Asphalt Roofing Manufacturers Association all recommend using a mix of bleach and trisodium phosphate applied with low pressure. They also warn against the use of a pressure washer for roof cleaning Indiana and all around the country.