Cleaning and Washing Your Siding
Vinyl siding and soffit should be washed periodically by hosing with a garden hose and clear water, particularly in those areas not exposed directly to rain. If you desire to do a more thorough cleaning, or where high soil collection conditions occur, use a soft-bristled, long-handled washing brush. Do not rub vigorously. This may create glossy areas over the vinyl siding finish. For hard-to-remove dirt, such as soot and grime found in industrial areas, wipe the siding down with a solution that’s recommended by the manufacturer. If you wash the entire house, start at the bottom and work up to the top, as less streaking will result. It is important that immediately following all washing operations, the entire surface be thoroughly rinsed with fresh water from a garden hose.