If you were going to provide a roof maintenance program and retreat a roof that you previously cleaned 2 or 3 years prior, what kind of solution would you use.
I also have a potential customer ask me, once the roof is cleaned could he spray his roof with bleach to prevent the return of algae
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Green Apple Roof Cleaning Co LLC
412 - 389 - 4662
Soft wash roof cleaning
preferred method of the roof manufacturers association