I am finishing our basement. The previous owner has framed the basement with 2X4 turned sideways 16"OC. I originally planned on removing the framing and placing 1" XPS against the foundation, then framing with 2x2s. Is this necessary or can I just put XPS between current studs and dry wall on top? We had a few moisture problems which have been corrected so I will replace some small parts of the framing either way.
That describes my whole house except the attic. The house was build in the 50's so there is 0 insulation in the walls. Previous owner installed aluminum siding so that helps a little.
I am in Kansas so it does get cold, but I really don't want to tear down perfectly good framing if I don't have to.