You should not pressure wash asphalt shingles on your roof as this will remove the granules that protect your roof. Additionally, the pressure can cause your shingles to fall off, causing repair problems and possibly water damage. A professional pressure washing technician will be able to tell which areas in and around the roof are safe for pressure washing, as well as the best techniques for getting the job done.
It’s also wise to avoid wooden surfaces like outdoor furniture. The pressure and heat of the pressure washer can remove stains from these surfaces, so they should be done carefully and with a special soft-touch technique that is gentler on the surface.
Do not pressure wash porches or other painted surfaces
Using a pressure washer on porches and other painted surfaces outside your home can potentially be a bad idea. If the pressure is too high, the paint will most likely come off your porch. And I’m sure that’s not how you planned to make your porch clean. If you absolutely must use a pressure washer on these types of surfaces, be sure to set it to a lower pressure.
If you have outdoor furniture in your backyard, chances are this one applies to you. Wooden garden furniture should be stained to protect the wood from weather and pests – this is very important for the preservation of your furniture. The problem with using a pressure washer on stained wood is that it won’t get stained afterwards. The high pressure water spray will remove the stain right away.
Back of the pressure washer
Read the manual: The pressure washer manual is more important than many appliance manuals. It contains crucial information on how to operate your pressure washer, how to use the device safely and what not to do with the device. Our list of pressure washing dos and don’ts is suitable for general pressure washers, but there are specific differences between pressure washers that you should be aware of.
Start at the widest spray angle: If you’re worried about damaging a surface (and you should be), start at the widest spray angle and work your way down. A wider spray angle has less power, which means less risk of damage. If it does not remove contaminants on the surface, reduce the spray angle as needed.
What you should not pressure wash, 21 examples
The following table shows 21 examples of materials you should not pressure wash:
When pressure washing any surface, make sure you don’t use it at higher pressure than recommended. You should use detergents with pressure washers to get rid of older, more stubborn stains. Use the right nozzle for the job. Different types of nozzles have different spray patterns. And different types of surfaces require different spray patterns to avoid damage. It would be best if you didn’t use your pressure washer on air conditioners, old mortar, and plants.
Should screens be removed before pressure washing the house?
It is advisable to remove mosquito nets before you start pressure washing your home. This will prevent the screens from being damaged by high pressure water. In addition, it will facilitate access to all the nooks and crannies that need to be cleaned.
Windows should also be removed before pressure washing your home. This will protect them from high pressure water damage and make them easier to clean. Plus, it will allow you to get into nooks and crannies around window frames.