Your roof and siding are two of the largest installations in your home, and they are also two of the most delicate -- at least in the face of a pressure washer, they are.
This presents a problem when your roof and siding become dirty. They are so large, so everyone will see that eyesore, but you can't quickly knock away with the mess with a pressure washing . . . Unless you want a broken home, that is.
What you can do, instead, is to get a soft washing!
When it comes to cleaning your home's delicate components, you can't beat a soft washing. A soft washing uses far less pressure than a pressure washing does, so it won't damage your home's siding or roofing while still providing a quality cleaning.