How To Pressure Wash Hardie Siding

Attach the high pressure spray nozzle to your garden or water hose and rinse the hardboard siding area that you wish to clean.

How to pressure wash hardie siding. Rinse the siding with a low pressure garden hose. Create a gentle cleansing solution made of mild dishwashing soap and water. Be sure to completely rinse it free of any soap residue. Dip a soft cloth into the mixture and saturate it well.

From there rinse the area with clean water. Remember you still want to be careful so as not to damage the fiber cement siding. Starting low and gently working your way up is the safest bet. Only use a pressure washer at a distance of 6 feet or more.

Do not use a high pressure hose to clean fiber cement siding. 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. Rub the oil or grease off the siding. Rinse out your cloth in the bucket frequently to prevent grease and oil buildup.

Wet a soft cloth with the cleaning solution and wipe the greasy stains. This can be a great quick way to clean siding but power washing can damage fiber cement siding. This is one of the few ways that you can damage it. Pressure power washing.

Use a side to side motion when cleaning horizontal planks. You may need to repeat. Start from the top and clean with the direction of the siding. Step 2 scrub the hardboard 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. Using the high pressure spray nozzle attempt to remove as much dirt dust and grime as possible before cleaning with soap and water. If using a brush brush the siding s surface dust or dirt then rinse the area with a garden hose.