Is there an incredibly thin R 13 insulation for tight spaces?
Also posted in the New house forum, as I think this could go either way, but thinking about it now it's all about bringing an old house to current day comfort.
I have an old A-frame cabin (previously used only for summer usage), about 325 sq', just had the roof and cold floor spray foamed. Also cuboard interiors. What's left is the end walls (non-sloping). So approx 3/4 of the place is now tight.
The wall construction seems to be 2" cedar boards, then shingled on outside. I think no tar paper as I can see light coming through the boards!
With the built in kitchen and bed in loft there is nowhere to frame in space for insulation without a serious reno (no budget left for that). I'm wondering if there is a super thin insulation (panels??) that may come anywhere near to R-13?
The rigid is way too thick, I think it was 2".
On top of that I do plan to put T&G pine.
Any other ideas? Thanks!