Mark writes from York, Pennsylvania: "We are finishing our basement. The builder wrapped the concrete basement walls with insulation that has a plastic-like vapor barrier. We framed out from the insulation so not to compact it. Now we want to add R-13 insulation between the studs, but don't know if we can. Do we need to remove the plastic-like vapor barrier, or can we just add insulation onto the existing?"

Answer: If the plastic-like material is a vapor retarder we do not recommend placing insulation over it. If you want to discuss your situation with someone, call the helpful Owens Corning customer service folks at 1-800-GET-PINK (438 7465).