Deb writes from Naples, Maine: "I would like to use Insulpink on my basement walls. They are stone walls above a dirt floor. How do I attach the Insulpink? Also, my basement is not heated, but my furnace is down there & half of the basement has insulation on the ceiling and half of it doesn't. Should I insulate the part that doesn't? The guy at my local retailer said people usually don't insulate their basements."

Answer: InsulPink® extruded foam basement wall insulation is channeled to be applied with furring strips. It works best when applied to flat, even surfaces. The ceiling of the basement should be insulated whenever there is a heated space above. We recommend using Kraft-faced insulation with the vapor retarder facing up toward the heated living space. The walls of the basement do not need to be insulated since the basement is not a heated living space.