And with roof repair options for commercial properties and office buildings, on top of a variety of residences, you can always trust Pro Roofing NW to repair your roof to spec. Make sure you are dealing with a State Licensed and Certified Roofing Contractor who can provide products and services that can meet/surpass industry standards. Let the hose run for several minutes in one area before moving it up the roof a little farther. Have your helper stay inside the house waiting for the drip to app...