Roman's guide, tips and instruction on how to power wash a wood deck.
While its always best to hire a professional deck cleaning company to get this done, many people will chose to do it themself. The following is some information about how we do it and how I sugest to get it done .
Now keep in mind that your electric pressure washer or small gas engine power washer most likely has more then the pressure required so you need to be carefull when it comes to wood deck cleaning as damage can be done quiet easily and the biggest problem of it is that when you power wash and your deck is wet then it almost always looks amazing until the next day when you see it dry and realize how much damage was done.
NEVER EVER START A POWER WASHER AIMING AT A PERSON, ANIMAL OR ANY DELICATE SURFACE AS NOT ONLY THE STREAM OF WATER CAN HURT SOMEONE OR CAUSE DAMAGE BUT THE NOZZLE CAN SOMETIMES DICONNECT AND SHOOT OUT LIKE A PROJECTIKE AND HURT SOMEONE OR CAUSE DAMAGE.
Following is a list of thing you need to decide before even starting the power washer
Now there are many different cleaning detergents for wood deck cleaning and picking the one that meets your needs is quiet impoortant, a too gentle of a cleaner will not clean a really dirty deck yet you would not want to overdo it witha heave duty cleaner stripper if all you deck needs is a very light cleaning.
If you deck is fairly new or in great shape it might just need a light cleaning:
If you do not have the nozzles for low low pressure rinse then I wpuld sugest scrubing the deck gently with a soft deck brush going along the boards and rinsing with a garden hose, too much pressure and wrong techniques of Fannin can trully make the hardwood mahogany or ipe deck look really bad when it dries - see below more on how to use a power washer, tips nozzles and technique.
Some questions you might have about wood cleaning and our practices etc.
Question- Why do we not buy or use pre made wood cleaners available in retail stores- are they not good ?
Answear - No that is not the case, there are many fantastic wood cleaners readily available, the only reason we buy in builk and use raw chemicals to make our deck cleaning solutions is because we clean many thousands of square feet of wooden decks a year and we have spent a significant amount of time on wood cleaning and restoration classes, courses, learning about said chemicals and testing the proper ratios to be able to custom mix what we belive is best for job at hand. For an average person cleaning their deck there would be no real cost saving due to quantity and the cost of it plus many require knowledge how to store as they are dangerous to store and they have a limited shelf life so buying to use over many years is not an option - some have a shelf life of only a few months.
What we recomend is buying from a local supplier a retail product amd enough for you project at hand .