At Chuck Bergman Pressure Washing and Roof Cleaning, we can pressure wash your House, Pool Area, Decking, Driveway, Dock, Screen enclosure etc. We just don't pressure wash roofs, we chemically clean roofs. That is how the roofing manufacturers specify that they be cleaned. Here is a 2 minute video and you can watch a large portion of this blackened tile roof come clean before your eyes. http://www.tubechop.com/watch/474113
We cleaned this roof a couple of weeks ago in South Gulf Cove. A large development that falls within Port Charlotte, Florida It's right down the street from me, I am in Gulf Cove. Also, here are pictures of before and after. This was originally a 10 minute video, I cut it to 2 minutes. The 10 minute version is on YouTube. If you want to see just how much black algae discoloration there was, you should watch the 1st 10 seconds. It has some close ups.