I have never washed a roof in my life but plan on getting into it. I have a 3300 PSI @ 4.5 GPH wash unit. What other equipment do I need? (Besides a ladder and guts) What is the "BASIC" chemical/cleaners do I need?
Ever heard of ARMA? Since chlorine contains sodium, it's recommended that roofs be rinsed after cleaning to avoid becoming dried out or brittle. That being said, chlorine IS the recommended chemical to clean shingles by the Asphalt Roofing Manufacturers Association. Here's some more reading for you. You'll need Adobe Acrobat.Cat Powerwash said:Gentleman, I read that bleach or chlorine is a no no when it comes to roof cleaning. Yes it will clean it but it will also cause the shingles to dry out.