Interior rigid foam
My gut feeling is rigid foam no matter what thickness is prone to less moisture caused problems than exterior. And less costly.
Would like Martin Peter Joe and all to discuss. The rim joist cause for concern to me is not a cause for any concern.
Seems to me a better lesser cost less dangerous assembly whether new construction or a renovation.
I have noticed many contractors in my area are now insulating exteriors but only with an inch or less of for example Dow Styrofoam. Are these homes going to have problems? Seems likely to me. Zone 6a.
Posted Tue, 10/22/2013 - 17:07
Edited Tue, 10/22/2013 - 17:10
Other Questions in Energy efficiency and durability