wrote in message
news:1074738793.129046@smirk...
....
My plan is to build the wine cellar as a room with double walls: Two
2x4 stud walls, with 2" of gap inbetween. The gap is filled with
sheet insulation (polyurethane or polyisocyanurate), R-7 per inch. On
the two outside walls (towards the masonry outside), the sheet
insulation goes directly against the masonry wall.

Seems a bit overkill for a basement, but you may want to consider something
called stress skin panels or structural insulating panels for this
application. It basically looks like a giant ice cream sandwich where the
outside is typically OSB plywood and the inside is either polyurethane or
polyisocyanurate. There are variants where one side is OSB and the other
side is sheetrock or OSB on one side and nothing on the other side.

You can sheetrock over the OSB facing the interior of your wine cellar and
then you could hang shelves anywhere because you wouldn't need to find a
stud.

Where are you going to find a door to match this super-insulated wine room?

-al sung
Rapid Realm Technology, Inc.
Hopkinton, MA