We understand that some of our customers might have specific needs, including touching up the portion of the roof that is visible from the street to increase your home’s curb appeal when you put it up for sale. However, we generally do not recommend choosing a partial cleaning treatment for your home. The areas that are left untreated will likely include some microorganisms that are not yet visible. They can send spores to the treated areas and expedite the regrowth of stains.