How To Remove Mildew From House Siding

Pour the cleaning solution into a power washer.

How to remove mildew from house siding.

If you are worried about damaging the vinyl you may use a lower pressure pump sprayer. Standard household cleaners won t necessarily remove. Just in the past couple of years some kind of mold or mildew has formed on the vinyl siding on the north side of the house. As rainwater and condensation accumulate on vinyl siding it can develop black spots of mold and mildew.

Spray and scrub exterior siding like a vampire mildew shies away from strong sunlight so it s most likely to develop on the north side of your house and under eaves and windowsills. When mildew gains a foothold homeowners often turn to diluted chlorine bleach sodium hypochlorite a k a. Your standard household whitener it appears to make mildew vanish but on porous surfaces such as wood or vinyl siding chlorine evaporates too quickly to get to the fungi s roots guaranteeing regrowth. Remember not to angle the sprayer upward to keep the solution from seeping under the siding layers.

I have lived in my house for 25 years.