subject: Washing Vinyl Siding: Tips And Tricks [print this page] Vinyl siding eventually collects dust, dirt and grime. A good power washing will restore its attractiveness. Power washers do a great job but have to be used properly for optimum results.
Tips for Washing Vinyl Siding Properly
Pick a test spot. Try the sprayer on a small section of vinyl siding that is inconspicuous. Chances are you won't damage the siding, but you'll be able to experiment with the water pressure.
PSI. Use from 1,800 psi to 2,500 psi (pounds per square inch) for washing vinyl siding. If the owner's manual for the sprayer specifies otherwise, use the manufacturer recommended setting.
Safety first. Avoid touching the spray or you'll lose some skin. Make certain the sprayer trigger is locked, the priming lever is off, and the pump pressure control is on low.
Start at the top and work down. Vinyl siding panels are meant to shed falling rain. Pressurized water forced up underneath the butt end of the panels can wet the insulation and wood frame.
Keep the sprayer moving. Spraying the siding in one spot longer than another may result in streaks. Keep the pressure consistent along the wall by moving with the sprayer. This allows you to maintain an even distance from the siding and get consistent results.
Vinyl siding cleaner. A household detergent can be used to help dislodge dirt, algae and persistent grime. Err on the side of using too thin a cleaning solution rather than overdoing it. Follow the manufacturer's instructions on mixing the solution. Follow up by rinsing the vinyl siding with clear water.
Keep your vinyl siding looking good with an annual cleaning. Washing vinyl siding maintains the appearance of your home, removes algae and mold that eventually stains the siding, and allows you to inspect for damage at the same time.