How To Pressure Wash Hardie Siding

Start from the top and clean with the direction of the siding.

How to pressure wash hardie siding.

Do not use a high pressure hose to clean fiber cement siding. Step 2 scrub the hardboard siding. Create a gentle cleansing solution made of mild dishwashing soap and water. This can be a great quick way to clean siding but power washing can damage fiber cement siding.

Starting low and gently working your way up is the safest bet. Mix a mild dish detergent and water in a bucket until you have sudsy water. Wet a soft cloth with the cleaning solution and wipe the greasy stains. Rub the oil or grease off the siding.

If you feel that you need to use a pressure washer especially on harder to reach locations only use it at a low pressure under 1500 psi with a wide tip. Pressure power washing. Use a side to side motion when cleaning horizontal planks. Rinse out your cloth in the bucket frequently to prevent grease and oil buildup.

Only use a pressure washer at a distance of 6 feet or more. Be sure to completely rinse it free of any soap residue. If using a brush brush the siding s surface dust or dirt then rinse the area with a garden hose. Dip a soft cloth into the mixture and saturate it well.

Using the high pressure spray nozzle attempt to remove as much dirt dust and grime as possible before cleaning with soap and water. Remember you still want to be careful so as not to damage the fiber cement siding. 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. If using a soft cloth wet the cloth then wipe the area in a side to side motion in the direction of the plank shingle or panel siding until clean.

From there rinse the area with clean water. You may need to repeat. Attach the high pressure spray nozzle to your garden or water hose and rinse the hardboard siding area that you wish to clean.