Serving Northwest Arkansas, we are The Roof Cleaning Solution. Enviro Roof Restore and More is "Green" and uses only environmentally friendly solutions to kill the algae (dark streaks and stains)along with any moss and lichens that might be present on your shingles and cedar shakes. We remove the dead algae with a low-pressure water spray with special "roof cleaning equipment" (no power washing). Through the years our customers have requested other exterion cleanings and we have responded with environmentally friendly solutions for "total exterior cleaning" that includes Dryvit. Please call 479.631.ROOF(7663) for a free quote. We use only "Professional Grade" SOLUTIONS THAT WORK and are good for the environment.