I used the BondedLogic material on the trip I took with my son (pic below is while we were in Williams, Az). I used the double-faced radiant barrier material for all then lower SMB windows and along the penthouse canvas. It worked very well, though I was on shore power at that site, with a 120V ceramic heater running. It did make a big difference, but it is a little bulky to store (keep in mind I have a LOT of windows in my SMB).
The reflective barrier material is fairly durable, but it can tear if not being careful. In the few spots where it tore, there are no issues with the insulation coming out. I believe the insulation material is shredded denim, so no worries about outgassing.
I'd recommend requesting a sample.
Herb