I have a stone house near Cleveland Ohio built between 1932 and 1944. The anatomy of the exterior walls is as follows: stone(8 to 10 inches thick), tar paper, 1X8 planks and 2X4 interior framework. I am worried about moisture in the wall cavities which may leak through from possibly old deteriorating tar paper. I removed very old paper backed insulation, which was black in color, from the wall cavities. The insulation was not wet, except for 2 areas where there was a roof leak, but the old insulation was deteriorated. Will standard R13 paper backed insulation work best or are there other types I should consider? Should I install a vapor barrier before I install drywall on the exterior walls? Any help would be greatly appreciated.
Thank You