Why roof washing? Aside from certain sections, chances are no one is going to be able to see your full roof from the street, so why bother? When it comes to soft wash roof cleaning, the goal is not necessarily to increase curb appeal, but rather to preserve your roof’s integrity. Your roof is constantly exposed to the elements. Snow, ice, rain, heavy winds, and sunlight eventually take a major toll on your roof. Not to mention, birds, rodents, and other pests may make their way onto your roof and build nests and otherwise damage it.