I am in the process of purchasing a home where the front is a slab and the rear is a pier and beam.
The rear perimeter of the home has a clearance of about 8 feet from the ground (on average) with no walls or barriers from elements, critters, or line of sight (its not pretty). Currently there is fiberglass insulation in place between the joists with polyethylene nailed on top of it all. It appears there has been some moisture in there already and I fear there is mold lurking under there too. The dirt floor has a plastic vapor barrier of sorts.
What do folks recommend I do to take control of this situation. I am thinking I should build a wall to enclose the entire back of the house that prevents critters and makes it look good, but not worry about it being 100% air tight. I would then redo the vapor barrier, remove all insulation and then then look to apply spray foam to the underside of the floor along with some small gauge chicken wire across the joists to prevent animals from burrowing in there. I have also read folks recommend using fiberglass insulation and then applying soffit board to the entire underside to seal it.
This home is in North Carolina.
Any ideas are welcomed. It is my most feared part of the new house and I dont have a plan of attack yet.