Why do I have white on my hand after I rub my siding?
This is oxidation and it is usually chalky. This can be cleaned off but it takes a lot of time and labor to remove this from your siding there is no easy way to get it off.
This is oxidation and it is usually chalky. This can be cleaned off but it takes a lot of time and labor to remove this from your siding there is no easy way to get it off.
This is either mold mildew or algae, this grows on most homes and should be treated with soaps and detergents. Do not hire a pressure washer to blast it with pressure. Applying high pressure to your siding can cause permanent damage.
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