I built a redwood deck some 10 years ago and used to treat it with deck oil finish every year or two. I found it to be a mess. It looks amazing in the beginning but after a year or two it gets ugly.
- In the traffic areas the finish catches the dirt from shoes and gets more and more black.
- In the sun-exposed areas (SoCal) the wood gets bleached.
- In the sun-protected areas the oil finish builds up to a thick film.
At the end I stopped that maintenance and just let the redwood get a nice grey patina. It looks much cleaner and is much less work. Once a year I take a pressure washer with a rotating nozzle to clean off the dust and dirt.
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