On Wed, 4 Aug 2010 13:55:00 -0500, "HeyBub"
wrote:

Why would you not be able to insulate it? Worst case, blowing in
insulation wshould do it.

Because the construction MAY be (going down):

* Carpet

Peel it back from the further most distance from the door.

* Sub-floor (i.e., 3/4" plywood)

Drill hole for blown -in insulation. Small hole will show if OP has
insulation.

* 2x8 joists

Fill them from the outside... or above.

* Air

That's where the insulation is supposed to go.

* Driveway
* Dirt
* China