oxidized vinyl siding cleaning
Oxidation is sun damage, not dirt
If color comes off on your hand, the surface has chalked. A wash should not scrub that chalk into stripes.
Oxidation is the binder in paint or vinyl breaking down under ultraviolet light. It looks dull. It wipes off as chalk. It is not feeding on moisture, so sodium hypochlorite does not “remove” it the way it removes algae. Aggressive scrubbing removes chalk unevenly, which looks like a bad wash, because it is.
What we can do is remove the organic film that is sitting on top of the oxidation, so you can see the true condition of the siding. Sometimes that is all the owner wanted. Sometimes it reveals that the siding is due for paint or replacement. We will not talk you into a restoration product we are not there to warranty.
Gutters chalk too. Brightening is a harsher process and it is separate. Do not let a house-wash quote silently include “and the gutters will look new.” If they are oxidized, they may only look cleaner.
The service this belongs to is Vinyl siding cleaning.
In the towns we actually drive to
The west and south faces chalk first. The north face grows mildew. They are two different problems on one house.
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Black streaks are a colony, not dirt →