"mark" ) writes:

assume the same goes for the floor? Just paint it, or plastic then stud and
insulate, then plywood over that?

The advantages of insulating the subfloor are supposed to be minimal. Most
of the cold comes in from above-ground walls.

--
"For it is only of the new one grows tired. Of the old one never tires."
-- Kierkegaard, _Repetition_

James Owens, Ottawa, Canada