We live in a dutch colonial house constructed in the 30's. At some point, a small (10X15) office was added off the living room. The room is very cold during the winter and I believe a tremendous amount of cold is from the uninsulated floor. Unfortunately, they backfilled the crawl space so it only 10-12 inches deep. Therefore, I can't insulate the crawl space in a traditional fashion. The only access I have to the crawl space is where I knocked out a cinderblock in see what was under the floor. Does anyone have any suggestions on insulating this room? I have considered blowing in a product like attic cat loose fiberglass insulation into the space. I don't see a way of using any type of vapor barrier so I not sure is I would run into moisture issues, etc. Any suggestions would be great.