
It seems hard to even conceive of this, but there was a point in our past when paint was not something that the average person could afford to get their hands on. A big part of the reason why that is the case has to do with the fact that paint has always been a rather tough thing to create, but thanks to industrialization as well as various modern practices we are now able to make paint much more cheaply at any given point in time and that has allowed it to become a great deal more widespread in some way, shape or form.
Suffice it to say that your home will not be complete until and unless you add a fine coating of paint to its exterior, but if you have recently bought a fixer upper you should know that using a power wash on it to remove the old and flaking paint can be an all important first step. You need a fresh canvas to paint on after all, and pressure washing allows you to get it.
That said, painting immediately after pressure cleaning will be one of the worst mistakes that you have ever made so far since it can dramatically reduce the overall efficacy of what you are trying to do here. Paint can be resistant to water from the outside, but it is notoriously susceptible to it on the inside. Since the surface will have absorbed a lot of water from your pressure cleaning, the internal moisture can make your paint run and dissolve. While paint is quite widely available, that still doesn’t mean that it’s cheap all in all.