I have a 14x32 portable building with white vinyl siding. The north side is in shade 100% of the time and it is developing a greenish tint in certain places which I assume is mold, mildew, etc. due to never being exposed to the Sun.
Does anyone have any recommendations for a good vinyl siding cleaner that doesn't need a pressure washer and doesn't require scrubbing? I seem to recall reading about some that you applied with a garden pressure sprayer and then hosed off but I can't find the thread.