What type of Insulation can I use on the exterior of my home?
...thermal barrier and air barrier, so if you are going to redo the exterior this is a good time to do both. I think you may be best to look into some rigid insulation boards, but be sure to get the right ones, so be sure to read this page first -
The difference between Polyiso, EPS & XPS Foam Insulation & Styrof...