Wayne writes from Vestal, New York: "I live in an old Cape Cod style house that was built in 1950. It has crawl spaces that are planked floors that insulation has been blown in on the ceilings below the attic floor.I want to use this area as a storage space and must walk on the existing floor but I want to add more insulation to that floor area. Can I add a rigid insulation material on the floor surface that will allow me to walk and store articles on it?"

Answer: Owens Corning does not have a product that can be used in the way you described. Your local building code will no doubt require that the foam insulation be covered with a 15-minute thermal barrier, such as a flooring material, for fire safety.