How To Pressure Wash Hardiplank Siding

Choose a pressure washer.

How to pressure wash hardiplank siding.

Keep a minimum distance of 6 feet from the wall. Mix a mild dish detergent and water in a bucket until you have sudsy water. A 3000 psi consumer grade gas pressure washer is a great choice for cleaning fiber cement. Rinse out your cloth in the bucket frequently to prevent grease and oil buildup.

Instead continually rinse the area until all of the soap has washed off of the siding. Grab your soft cloth and saturate it with soapy water. Dip a soft cloth into the mixture and saturate it well. A pressure washer can quickly ruin vinyl siding by cracking it with the high pressure stream of water so it s necessary to know which pressure level and nozzle to use.

Never start off on the highest pressure setting. If you re spraying mold and mildew off of your siding you should use more than just water. You may need to repeat. Once the siding is completely sudsed up use a garden hose to rinse the area.

Starting low and gently working your way up is the safest bet. If the dirt on the home is minimal then try the soap and brush method with a garden hose first. It s best to avoid pressure washing if you can since it can result in damage to the siding finish. Clean the stained siding while rinsing your cloth frequently.

Use pressures under 1500 psi.