Thank you Greg. That does help some. We've actually replaced some of the rim joists and some of the studs already due to what you mentioned.

mobile home walls.jpg We are going to install R15 Rockwool in the outer walls of our 1979 single-wide mobile home. It is located in the Pacific Northwest in the woods, entirely off-grid. The house will be heated by a wood stove. What we don't know is how we should install vapor and/or air barriers ...