Things You'll Need
When siding begins to look dull and lifeless, oxidation is the culprit. Running a finger along the siding will come away with a powdery film that needs scrubbed away. Siding gives the home individual personality and provides the interior protection from the elements. Metal, wood, vinyl, cement fiber and composite siding are all subject to dirt and oxidation problems. Annual cleaning is the best defense. Keeping the surface clear of oxidation improves the looks and extends the life of all types of siding.
Spray the siding down with a garden hose. Start at the top and spray downward.
Mix 3 cups of liquid trisodium phosphate (TSP) cleaner and 3 gallons of water in a large bucket. Begin scrubbing the siding using a scrub brush. One that is designed to clean recreational vehicles works great.
Scrub from the top to the bottom in six to eight foot sections. Rinse well with the garden hose.
Work in shaded areas to avoid having the cleaner and dirt dry on the surface of the siding. Continue cleaning in small sections around the entire home exterior.
Clean the siding in shaded areas for the best results. Dried cleaning solution can cause permanent stains.
Wear safety glasses and gloves when using TSP.