Thanks for the replies.
I'm hoping to find threads about building them. I won't be spending $100k on having one made, and would like to see what techniques other people have used.
I'm starting to design a hard sided popup to put on a flatbed RAM 3500, and am looking for examples & inspiration. I've looked through the site for ideas, but am afraid I've missed some because of the way the site is organized (by vehicle type, not living space type).
Is there any sort of list...
I think this is key: 24-inch on center 2" x 6" wood assembly. Roof application. Test Method ASTM 1116. Airspace of 2.64 inch on each side of product.
So, for something that probably costs more than fiberglass, but still takes the same space, it has a lower R value. With cheap-*** fiberglass...