D.J. writes from Pleasant Grove, Alabama: "i have a two-car uninsulated attached garage with heated living space above with hard wood floors. I do not intend to finish the garage, I just want to insulate the ceiling. What type of insulation can I use that would not require me to install drywall? I don’t know how tough this question is, but it is one that I really need an answer to."

Answer: We recommend either Kraft-faced R-19 or R-25 placed in the ceiling of the garage. The paper vapor retarder should be installed up toward the heated living area. The FIBERGLAS™ insulation side is non-combustible and does not need to be covered with drywall. The insulation will need to be supported by nylon banding or metal insulation supports.