Not sure where this belongs, but the moderator can have is way with it, if it is in the wrong place.
Few words about me, I ski most of the winter, both downhill and cross country. I stay in cold locations, i.e. minus 20 degrees F and windy. I have owned a New Horizons fifth wheel, and other trailers - airstream being one of the worst for insulation.
My eyes are crossed from reading posts here, on the Scamp
site, about the Oliver
A lot of fiberglas trailers are insulated with some type of foil insulation - and I have a bias that that product is way oversold, and does little good, even when used with air gaps. Without air gaps it has a R value of 1.0. It is great on window coverings, but not very useful otherwise. What does work is foam, and it lasts, I have taken apart a mid 70s GMC and the foam is intact, so it does not crumble or fall
apart when done properly. Same is true of vintage Avions, FMCs etc
What does the wall and roof section of a 2000s era Bigfoot
look like, how much real foam? Is there any other fiberglass RV with foam?
The airstream forum, a person with the handle zeppelinium did a fairly rigorous serieds of tests with different types of insulation, it is a bit instructive to read. Others used the reflectix properly i.e. air gaps, and it is a laborious process, without much benefit. malconium is the person who did the best job. I havee-mailed escape
RV and the Minnesota trailers made in Backus and the both use reflectix etc. I tried telling the Minnesota mfg. that I had serious doubts about the use of reflectix for insulation, but obviously I was not listened to. I understand, probably wouldn't listen to me either
The work that zep did shows that foam is by far the best insulator, but difficult to use on an airstream.
Information on real world tests of how well various types of insulation works woud be wonderful, but cannot find any.
So I need a trailer in the 17 to 21 foot range, that I don't freeze in. I know how to winter camp, heat tape is my friend.
Thanks for any and all info, and for reading a way to long first post - or any post for that matter.