If your roof is dirty with tree branch debris, moss, and several other types of strange things growing on it, is pressure washing your roof the right choice? Remember that there are two main problems with pressure washing your roof. Firstly, it can be damaging to your roof. Secondly, the roof's warranty may get void if you pressure wash it.
While pressure washing your roof, always keep in mind that the power washer's output pressure must be controlled accurately. Otherwise, you may end up damaging your roof severely. Another thing to pay attention to is the nozzle size of the washer. If the nozzle size is different than what is required, it can damage your roof. Also, make sure that spraying should be done from the top of the roof and not underneath.
In addition to these, pressure washing your roof may compromise the sealants used in vents, flashing, solar panels, skylights, chimneys, etc. and may ultimately lead to roof leaks. Make sure that the water temperature is not too hot and the angle of the spray is correct. Otherwise, your roof might get damaged.
Before attempting to pressure wash your roof, you should understand that most of the components used on a roof are not built for enduring pounding, high water pressure. This is especially true in the case of homes with older roofs. When you use consistent high water pressure on such roofs, it can lead to various issues, like:
Here are some ways to clean your roof without damaging it.