KY-KO Facts: What do you know about your roof? Visit our Roofing 101 section and learn everything you need to know. Welcome to KY-KO Commercial Roofing Systems, Home to Monty, Roofus and the best darn roofers this Valley's scorching summers and torrential monsoons have ever bumped into. Whether your roof is watertight or has a gaping hole in it; whether you have a simple question or are in need of some detailed roofing advice, there's one thing you should know about KY-KO Roofing Systems... Ky-Ko Roofing systems specializes in roof replacement for residential homes and commercial applications across the Valley of the Sun, including Phoenix, Scottsdale, Tempe, Mesa, Chandler, Ahwatukee, Gilbert, Glendale, Peoria, Cave Creek, Fountain Hills, Apache Junction, Queen Creek, Surprise, Buckeye and Goodyear.