I went thru the pile of scrap wood my son got me and discovered I have enough to get started converting my shed. I have one question though. The wall at the back of the shed is about 3 feet from the back wall of the shed behind it, so its not getting the brunt of the wind. I have tons of cardboard boxes from things I have just bought, if I folded them say, double thickness, do you think they would be good insulation? It can get pretty windy here and the sides that are more exposed would be better insulated. Any one used this? Im in Pa and it can get down to about 0 degrees on some nights. But I also dont want it to be too hot because we can get high humidity and 90's in the summer also.