This is a wood shingle roof. This style of roofing was most commonly used on residential homes in the 70’s and early 80’s. This type of roofing has a life of around 25 years. These types of roof wear out over time in AZ due to the sun cooking the shingles. Many times when it comes time to change this roofing material, the homeowner will change it for a different type of roofing material like tile or asphalt.