Bettle55-
I agree with what you are saying. That is one of the reasons why I am building my own ICF/concrete home. It's a complete joke on how poorly these tract homes are out here. Sadly they are ALL like that, except for the high-end million dollar homes that sometimes (not always) get fully sheathed with OSB.
I've seen plenty of problems already with these homes out here. Many are experiencing mold/rot and even failing walls. The walls that have problems are of course those that were never fully OSB sheathed. The open framing causes wall shifting and windows to shift and even break due to the wall racking and twisting out of square. Wall leaks from water intrusion is another problem.
It blew my mind that they build like this out here. Still stuffing R-13 fiberglass batts in the 2x4 walls and using 15# building paper as your water barrier.
Instead of "
Where's the beef?" in Phoenix it is
"Where's the OSB?" (hopefully you get the 1980's reference)