I have found the contributers to this newsgroup to be quite
knowledgeable about building construction as well as metalworking. For
my new and enlarged workshop I am planning to reside an old timber frame
barn. I would like it to look like an old barn from both the inside and
the outside. My plan is to nail 1 x 8 rough pine boards to the outside
of the beams, then cover these from the outside with 1" XPS (rigid blue
foam), wrap with tar paper and cover from the outside with 1 x 8 rough
pine. The roof would be similar except the outside layer would be
roofing steel.

Does this make sense? I am not looking for great insulation, mostly just
wind protection. Does this contravene fire regulations?

Any comments would be appreciated.