Don’t be fooled!
Do not listen to a contractor if they say it is alright to put a pressure washer on your roof. It WILL damage your shingles. Cajun Power Washing, LLC, is the only company in the Lafayette, LA roof cleaning industry that uses the methods suggested by ARMA.
Some contractors claim they use chemicals that can have your roof looking clean in six months, but who wants to wait that long when you could have it cleaned today! If a contractor says their methods will have you noticing results in any other time than immediately, then ask them if you can send them a check when you notice the results.