"L" writes from Wye Mills: "Our home is in Maryland (cold winters), and we are closing in a second floor porch and deck to make a heated living area...which will have an open unheated porch area underneath. This now framed in former porch/now enclosed living area is on the north side of our house, and we are anticipating very cold air blowing up under the floor. Tonight we purchased several rolls of your insulation for the walls and ceiling of our new room, but we are not sure how to insulate the floor. Could you please tell us what to do to insulate the floor, whether it should be faced or unfaced insulation - whether the facing should be up or down, or what do you recommend?"

Answer: We recommend installing Kraft-faced fiberglass insulation with the Kraft side facing the warm air. Regarding R-Value, we recommend filling the cavity of the floor joist. For example, if you have 2x10 joists install R-30; if you have 2x12 joists install R-38, etc. In really cold weather be sure to wear some nice warm slippers while in that room. I prefer PINK ones but the color is really up to you.