2 years 2 winters in montana
well we did 2 years in our overlander.. put on ebay tonight am sad to have to let it go. just finishing building our house. it was redone and handled our montana winters well... so i won't be posting much any more if our little home sells. we had 4-5 layer of that foil insulation (bubble stuff) and we did fine to 30 below. and we were in high winds didn't even rock the trailer.. i suppose that is that nice curve that lets the wind go over. skirted it with aluminum until the last 6 months we had a garage to put it in. airstreams are great.. was a fun project. enjoy your airstreams. they pull wonderfully too. good luck to all of you that renovate these it was lots work but great satisfaction.
mtmagpie: "better to live with guilt then regret"