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Spray foam is out due to cost.

Thanks for your input Bill. I planned on heating with a wood stove.

I guess just from what I’ve read it seems to be more common to have a vapor barrier on the interior when heating for any decent amount of time to prevent moisture from getting trapped in the wall cavity. I honestly have no idea what’s right or wrong. Just trying to figure out the best solution...

I’m leaning towards plywood or metal. Would you still do the same thing as Stryfe? Slash vinyl back, install unfaced, and then add a plastic vapor barrier? What are your thoughts on just unfaced, no slashing of existing and then plywood and/or metal wall covering? That would leave me with just...

For the ceiling I have R38 blown in and a vapor barrier installed on the interior just behind the metal ceiling.

That’s what I leaned towards at first but worry that while heating would trap moisture in the walls. I thought about doing rock wool thinking it would be less susceptible to holding moisture if that did happen.

Southern VA, about 15 minutes from NC line. Zone 4.

So I just had a 30x60x14 post frame shop built. I had the builder install 2” vinyl back insulation between the metal exterior and the girts. I am regretting my decision and would like to add something with a higher R value but don’t want to run into an issue with the moisture barrier being on...

That’s what I’m leaning towards… it’s just hard since I just had the thing built and regret my decision of having the vinyl back installed. Hard to cut into that insulation since it’s brand new. Lol

I know this post is a few months old but I am currently in the exact same predicament. I have 2” Vinyl Back installed between metal and hurts but want to add additional insulation such as R19 batts. What did you end up doing?