Originally Posted by Fletcher
During COVID I've been rebuilding a 1999 Casita
. The exterior is done and now I'm into the interior. I have a question about the Reflectix and hull liner. Is this the standard insulation and wall/ceiling treatment? Mine was almost completely bare when I got it, so I don't know what was there. There's just so much one can do with those curvy surfaces. Had you considered other treatments, or is this the standard for curvy fiberglass campers? Any help would be appreciated. Thank you. Your camper is turning out really nice. I'm getting some really nice ideas from your build.
Generally speaking, I'd avoid reflectix in favor of some sort of closed-cell foam. Probably EPDM or PVC based, since HDPE is a pain to stick to things. The RV makers like Scamp
like to claim that it's R-6, but that's only when it's paired with a correctly-sized air gap on the "hot" side. Sandwiched between layers in a wall, it's maybe R-0.6.