1) I understand there is a reflective or radiant "barrier" type of product that is installed on the roof joists inside the attic. My house has a metal roof mounted on 2x2 consequently an air space exists between the roof deck and the metal roofing. I'm wondering if it would be worth while to install the reflective "barrier". I have a 12/12 pitch creating a large attic space. Is this worth the investment?
2) There is about 12" of blown-in insulation in the attic. I have had to work in the attic causing compression of the insulation. Also the house is 21 years old and the insulation has settled. The recomended R value for Ft Collins Co is 49. I'd rather add unfaced fiberglass batts instead of adding more blown-in insulation. Would this application be ok? Would there be any potential problems with moisture accumulation? How much should I add?