Interesting idea on the 1" ... Air space, then applying bubble wrap to back of skins. Since the ribs fit snug to inner skins, only need is for tape on ribs right? In lower sections we've used 1 1/2" foam with silver lining facing toward inner part of Airstream. Will be a pretty snug fit against inner skins since some of wiring is behind rigid foam ... Maybe 1/2" of space at greatest gaps. Looks good but wanted to double check. Thanks for input so far. We're new to this but it sure is cool knowing every inch of the thing...
Sammie, Krystal, Lucas, Spencer & Jake!