Mine has a full basement with 3" closed cell in the walls and rim joist. Entryway is tile and the kitchen/dining room are vinyl, floors are still cold with a 65 degree basement and 72 upstairs. Living room and the one bedroom don't necessarily have cold floors, but pretty much cold everything lol. I took the stat off the wall and temp'd a 5ft piece of stat wire on to move it around, seeing if I could manipulate it a bit. Set it on the living room floor and it read 6 degrees less than it did on the wall 2 minutes prior. It's currently sitting on the back of the couch on the North half set at 70 instead of 72 like it was while hanging on the wall, a little warmer in the living room and little cooler in the bedroom (south side) but still not comfortable on the couch. Hate it. I'm fairly certain the majority of the cold plows right through the North wall and across the floor. Stupid bay window in the living room doesn't help either, I can feel the air blowing through the switch plates when it's windy. Should've foamed that too when I put the siding on but was 19 and poor