We are currently in the process of having our upstairs floor sprayed with expanding polyurethane foam insulation. The stuff is great! Due to the 2x4 construction we needed to get the maximum R value possible. We are supposed to be getting approx. R7 per inch. I don't think it will be quite that good but i know that it is the best way to go. It seals every square inch with foam. No air movement, no vapor barrier, no spiders. We have a friend in watrville that does the spraying.
We Even sprayed under the tub. Rodger is spraying the foam in this picture. The foam is applied at 120 deg. F. and within a couple second expands 100 times its original size. Fasinating! I love the stuff. We saw down the 2x4's to trim the foam to get it ready to for drywall.
your house looks awesome guys!!! keep up the good work, we expect it to be all warm and cozy when we get up there to visit you eventually!!!
Okay, I saw Trese this week so I know there have been some updates to the house! Let see some more pictures! :)