Yes pressure washing absolutely can damage vinyl siding if done incorrectly.
Siding damage pressure washer.
It has to have variable pressure settings.
Pressure washing involves water being pushed through a small hose and wand after being compressed.
By contrast motorized consumer pressure washers exert significantly more force.
Unfortunately too much pressure can do more harm than good.
Starting low and gently working your way up is the safest bet.
Power washing can be too harsh for some aluminum siding or other types of exterior siding like vinyl brick or stucco.
High pressure causes damage to the siding.
Concentrated pressure can also leave streaks or water marks across the front of vinyl siding.
Never start off on the highest pressure setting.
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.
They typically range from around 1 200 psi to 4 000 psi or more.
Avoiding some common pressure washing vinyl siding problems a typical plastic cleaning spray bottle sold at the grocery store will dispense liquid at a psi of around 10 to 12.
If you don t know what you are doing and use a pressure that is too high referred to as psi you could possibly damage the siding.
We have seen countless homes and buildings that have damaged areas because someone without the proper training has tried to pressure wash their building.
Professional contractors have the highest quality equipment.