Thanks InspectorD. Reading the article, it says "Your local code may not require you to use felt or housewrap, but unless you live in an extremely arid climate you need to use it." Phoenix is pretty arid. I have been researching alternatives and saw some moisture barrier paint. What about...
Remodeling a house in Phoenix. Our framer didn't install a vapor barrier or house wrap between osb sheathing and the exterior siding (t-111). City inspector is requiring it because "you do not want water penetrating from the outside into the wall cavities because it will rot the insulation."...