Eric writes from Traverse City, Michigan: "I am finishing off my basement. I am insulating between the floor joists to try to reduce sound from upstairs. I purchased r-13 Kraft back with vapor barrier to do this job. Should I remove the vapor barrier, or which way should it face? In locations where there is ductwork for heating is it ok to have the fiberglass insulation resting against the duct work?"

Answer: In a nutshell, the vapor retarder should be toward the side that is warm in winter. Instructions for installing fiberglass insulation under floors are available on the Owens Corning Web site.