After we knocked out a chimney and our kitchen ceiling for a home remodel, we discovered a relatively roomy attic space above the kitchen, which we are now finishing so we can make use of it. However, right now there is no insulation between this attic space and the roof. I want to change that before the hottest part of summer arrives.
The rafters are 4-inches deep, meaning we can only have insulation about 4 inches thick. A building inspector who was checking off part of our project told my wife that there is some kind of foam insulation that would fit in that space but still have a pretty high R value... But so far we haven't had any luck finding anything that will do the trick.
I'm currently considering a combination between some kind of foam insulation and radiant foil to help shield the new room from the worst of the sun's heat. Could this work?
I'd like to hear any other suggestions on how to insulate this area. Thanks!