Unfortunately, the answer in this forum is still "no": there is no super-insulating material available to homeowners at an affordable price.

This post was edited by kudzu9 on Mon, Jul 21, 14 at 23:44

Easy. Put up the R-13 foam or whatever to get your insulation then cover it with wall paper that looks like wood paneling. Thin - warm - cheap.

mxyplx, R-13 in foam would be 2" thick and the op wants much thinner than that.

Guess I got it rong? I thot the 2" rigid PLUS the T&G pine was too much so the paper being about zero would be a dandy fix. Not so. Don't know how thick the pine might be.

Facing reality I'd forget the pine and hang as much rigid as practicable where possible then paint over it and live with it. I insulated my steel garage door with 2 thicknesses of foam total R-10 as I recall. That's all that would fit. Really helps. 1.5" thick. 10/13 = 0.7692307692307692307.... not too bad. It's only 23% colder at that end. :-)

Yes afraid 2" won't cut it. One inch is truly too thick, as pine t&g is just under an inch already.
Will try an inch rigid plus the pine and just find a sneaky way to transition it.
Thanks all!

mxyplx,
The foam board needs to be covered by something other than paper or paint. Fire regulations.

Code here also requires a covering.

true dat!

What about 5 mil flooring underpayment cut in strips? It could give you a shiplap look and some even have a decent veneer on one side if you wanted the wood look and not paint it.

Scottie-

Not clear how your comment applies to this 5 year old post about trying to obtain high insulation values in a limited space. I doubt that underlayment has any unique or significant insulation properties... ;-)