A friend and myself are building a cabin in southern california. It doesn't snow often where it is located.
The cabin itself is setup on a post foundation and we are almost finished with the subfloor.
My question is, should we put a vapor barrier between the sub floor joists and the plywood sheets we put down? The front of the cabin is about 2 feet off the ground while the back of the cabin is about 6 feet off the ground.
If so, would something like tyvek work?