I glued 2" XPS in the rim joist but had some XPS left over so I glued 2" more on top of that for a total of 4". Is that OK? Will that hurt anything?
Will that hurt anything?
Your fuel supplier's revenues. (Perfectly fine.)
An area of our basement has rim joists that abutt our garage on one long side, a 3 season room on the other long side and is essentially exposed to outside on the short side. (The 4th side of this area opens to another part of the basement.
I will put the XPS for sure on the side part that is exposed to the outside elements. Am I gaining much of anything buy adding the XPS to the garage and 3 season room sides. These are eseentially under ground, no wind no rain etc etc. Its noticably warmer in the those areas too when I pull back the fg compare to the 3rd short side.
On the other side of the basement (its 'L' shaped) I put 2" XPS in the rims and the fg back on top of that.....but that entire area was more or less exposed to the elements.