The hard spray of water from the power washer can damage the surface of the siding.
Can you pressure wash hardiplank siding.
The manufacturer recommends that you do not pressure wash your hardie siding.
A little goes a long way.
Start from the top and clean with the direction of the siding.
To pressure clean the higher up areas you will want to use an extension wand because you want to avoid using a ladder with a pressure cleaner.
Instead use a soft cloth.
Consider the size of the detergent tank.
Sand blasting can damage the fiber cement surface and is not recommended.
Damage to siding arising from improper cleaning or maintenance may not be covered by the james hardie warranty.
This is one of the few ways that you can damage it.
Use a side to side motion when cleaning horizontal planks.
When properly cleaned and cared for james hardie siding should last for 30 50 years.
When you invest in james hardie fiber cement siding or hardie board siding you have made an excellent decision.
Only use a pressure washer at a distance of 6 feet or more.
While it s possible to wash wood siding correctly there s also a good chance that water will find its way up and under the exterior surface if you use high pressure.
Now you can clean away the dirt and lightly scrub the siding.
Pressure power washing.
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.
Acid washing can damage the fiber cement surface and is not recommended.
A 3000 psi consumer grade gas pressure washer is a great choice for cleaning fiber cement siding.
Whether you re removing dirt grease or mildew from your james hardie siding we ve gathered the tools solutions and.
Never start off on the highest pressure setting.
In fact pressure washing fiber cement siding is one of the only ways you can damage this durable type of 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.
And at pressures under 1500 psi will minimize the chance of damaging the siding.
You will need to use the black soaping nozzle to apply the detergent.
But it s important to make the right maintenance moves to ensure you don t accidentally do anything that voids the warranty.
Starting low and gently working your way up is the safest bet.
Be sure to completely rinse it free of any soap residue.
From there water can damage insulation electrical wiring and can spur mold growth.
The larger your house is the more pressure washing you ll have to do and the more frequently you ll have to refill the detergent tank.
Then to pressure wash the house siding clean use either the 25 or 40 degree nozzle tip.
Do not use a high pressure hose to clean fiber cement siding.
Don t use a high pressure power washer to get the job done as it turns out a low pressure hose and a soft medium bristle nonmetal brush is the best way to remove dirt and debris from james hardie siding and trim.
