thought of using  polyiso on underside of rafters, strapping over that, finishing with sheetrock …..would spray foam around an electrical box, cut in thru the polyiso work? or undermine the effectiveness of the polyiso?  with consistent praise of the product, it sounds like the way to go… although, if there no good place to plug stuff in (I don’t even wanna think of THAT conversation with the wife), I have lots of reconsidering to do….  anyone have a good thought on this one??? got my check  for my refi… got ants in my pants…. trying to plan the heck outta this one before I get going up there….  ANY thoughts would be great….thanks alot, Todd