Your local building permit office will tell you all this. I received a
hardcopy guide from my county intended specifically for homeowners
finishing their own basements. It was quite handy.
Basically, you'll want 2x4 framed walls, R11+ insulation, and a
continuous vapor barrier "on the warm side of the wall".
Even if the codes allow furred walls, don't. Just don't. I can send
you photos of what it'll look like in 35 years.
There are codes on the unfinished space. The under side of stairs must
be drywalled and each room must have a light. There should be an
outlet near the furnace. It's all in the code book.
See building science website. really good information
- posted on March 14, 2006, 1:47 am
The buildingscience website really does have great info. But again,
this just confirms the confusion. This site strongly recommends the
foam insulation boards, with furring strips or a 2x4 wall built
directly in fromt of it. Absolutely discourages the vapor barrier use
on either wall.
- posted on March 14, 2006, 1:55 am
In coastal SC, the code now says not to use any vapor barrier. I will
have to check for upstate SC, but I believe it is the same. In Canada,
you want the vapor barrier on the "Warm in winter side" In the deep
south, you want the vapor barrier on the "Warm in summer side"
It all depends on your climate.