Then rinse with the hose.
Cleaning hardie board siding.
Now you can clean away the dirt and lightly scrub the siding.
Make sure to dilute any concentrated soaps like dish soap.
Be sure to use a soap with no harsh chemicals as these can damage fiber cement siding.
Be sure to completely rinse it free of any soap residue.
If cleaning panel direction of the siding is up and down.
Use a side to side motion when cleaning horizontal planks.
Any areas that have been missed may show up when the siding has dried.
In most cases this is the best method for cleaning your hardie board siding.
Always clean and rinse from the top of the siding to the bottom so that grime gets washed away instead of spread around on the siding.
A little goes a long way.
If you prefer to use a soft cloth to handle the debris wet it and wipe the siding until it is clean and once again rinse with the hose.
Do not allow the soap and mildew cleaner to dry on the siding continually rinse the area until all of the cleaner has washed off of the siding.
Gently clean the siding with the soft brush or wet soft cloth in a side to side motion in the direction of the plank siding.
Start from the top and clean with the direction of the siding.
A mild biodegradable soap dish soap is a good choice a soft brush or a cloth.
Never use a hard or abrasive brush to clean cement fiber siding.
Do not push soft brush or wet cloth too hard against product surface.
To complete the job you ll need the following items.
From there rinse the area with clean water.
Pressure power washing.
Take your soft brush and use it along the siding to remove the dust or chalk that you want to clean.
Don t let soap or cleansers dry on the siding.
This can make cleaning harder and even potentially cause damage.