Black Mildew On Vinyl Siding

Mildew forms best in shady moist areas.

Black mildew on vinyl siding. Malfunctioning gutters running water problems and malfunctioning or misplaced sprinklers can all promote the growth. 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. As rainwater and condensation accumulate on vinyl siding it can develop black spots of mold and mildew. Choose the best cleaning solution.

Standard household cleaners won t necessarily remove mildew from siding but a solution of. Even though vinyl is extremely hardy and durable as an exterior siding for your home mildew will form on it in areas that are in the shade or where the vinyl is exposed to moisture on an ongoing basis. If you have problems with mold and mildew on your vinyl siding you may want to experiment with spraying a copper sulfate on the siding. You can probably use a power washer although the vinyl siding institute recommends checking with the manufacturer first.

However if you ve got valuable landscaping or trees nearby. Chlorine can also damage foliage and stain clothing.