I had to hand wipe a town home last year that was oxidized. Didn’t see it while I was doing the bid.-Then washed it—and had to come back after customer had complaints.My first experience with it in 12 years of washing. A nightmare–yes…
It caught me by surprise. I can spot it now. I’ll never get involved with it again. As the other guys here say. Walk away. Or charge a couple thousand dollars to hand wipe it with a bleach water mix. That’s what I did on the vinyl siding.Not sure if that would work with Hardiplank. * Remember too.Once you set up your equipment and try to be a hero to any situation ,thinking you can resolve anything. You then become involved. I will never even set up my equipment and try anything when it’s dealing with oxidation. "Just walk away "
