Over the course of the last four years, I have had lots of experience with removing mold from driveways and walkways. I lived in Seattle, Washington and in Portland. In both of these locations I had a good opportunity to own my own business and work as a handyman. For the most part I did a lot of landscaping, but when landscaping business got slow at the start of the recession, I had to look for other venues of income. So I went out and bought the largest pressure washer I could find, and started doing a lot of pressure washing in addition to my regular landscaping work. Over the course of 3 to 4 years, I became very good at cleaning moss and mold off of drives, patios and roofs.
Removing Mold with a Pressure Washer
The best way to do mold removal is to use a pressure washer. The pressure washer that I chose to use was a 13 hp Honda pressure washer. It had the capacity to process four gallons per minute and use 3,500 PSI. Today, the newer models are slightly more powerful and they can generate up to 4,000 PSI. For most outdoor mold removal jobs, you’ll be using between 2,500 and 3,500 PSI. If you want to use the full 4,000, that is okay too. Just make sure you have a wide-angle model and that you keep your pressure washer a good distance away from what you are cleaning. Usually, you want to clean from the furthest distance and you can still do a very good job. This will enable you to clean faster. Even though there are some new tools that you can use, I have always liked to use a gun with a 40° nozzle. I think that it is a very fast way to clean and a very good way to do mold and mildew removal.
When you use a pressure washer, you don’t even need to use chemicals. The pressure washer will take care of all of the mold and mildew and help get rid of it for good.