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.
Can you pressure wash hardiplank siding.
Use a side to side motion when cleaning horizontal planks.
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.
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.
Then to pressure wash the house siding clean use either the 25 or 40 degree nozzle tip.
But it s important to make the right maintenance moves to ensure you don t accidentally do anything that voids the warranty.
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.
You will need to use the black soaping nozzle to apply the detergent.
In fact pressure washing fiber cement siding is one of the only ways you can damage this durable type of siding.
This can be a great quick way to.
Damage to siding arising from improper cleaning or maintenance may not be covered by the james hardie warranty.
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.
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.
Sand blasting can damage the fiber cement surface and is not recommended.
Pressure power washing.
Always hold the pressure wand 3 feet from the.
Be sure to completely rinse it free of any soap residue.
Start from the top and clean with the direction of the siding.
Whether you re removing dirt grease or mildew from your james hardie siding we ve gathered the tools solutions and.
Can you pressure wash james hardie siding.
Acid washing can damage the fiber cement surface and is not recommended.
From there water can damage insulation electrical wiring and can spur mold growth.
The hard spray of water from the power washer can damage the surface of the siding.
When properly cleaned and cared for james hardie siding should last for 30 50 years.
Never start off on the highest pressure setting.
Consider the size of the detergent tank.
A 3000 psi consumer grade gas pressure washer is a great choice for cleaning fiber cement siding.
This is one of the few ways that you can damage it.
Now you can clean away the dirt and lightly scrub the siding.
Starting low and gently working your way up is the safest bet.
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.
And at pressures under 1500 psi will minimize the chance of damaging the siding.
The manufacturer recommends that you do not pressure wash your hardie siding.
