styrofoam and drywall
Build a standard stud wall framing using 2x3's or 2x4's on 16 inch centers, just inside the styrofoam.
You could have also installed 2x2 furring strips directly on the concrete wall but you can't do that now because the styrofoam is already there. Also, for an exterior wall, 2x2's won't leave enough space for non-porous non-mold-attracting insulation of enough R value.
With the styrofoam in place against the concrete foundation, any kind of additional insulation can be put between the studs.
The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.
Last edited by AllanJ; 01-27-2011 at 08:26 AM.