Even though it does not take much to keep vinyl siding free of damage, it still needs to be maintained regularly. In warm and humid weather it can accumulate mildew and mold. This has to be removed before it builds up and does more damage.
Before beginning any DIY project though, make sure to check the guidelines that came with the siding material. Some chemical cleaners can do more harm than good on certain siding materials. Better yet, test each cleaning agent by spraying a small amount on a section of