What is the Life cycle of T 111 wood siding?

T111 comes in different grades of material and center lines are on 8" and 16" ,masonite is hardest to maintain, fir is good but needs constance painting , cedar is probably best and should be stained only , but you will find placement of T111 varies from wall to wall a bright sunny wall may warp or peel the finish and a cool damp wall might let mold and mildew set in and rot the material. life span would vary from climate location so it would be hard to put a life expectancy on it .