Environmental considerations

Recycled material is used in many PIR products. The Polyisocyanurate Insulation Manufacturers Association (PIMA) says that almost all products today meet the EPA procurement guidelines for federally funded buildings, which call for a minimum 9 percent recycled content. Rather than using recycled foam, how­ever, manufacturers buy polyol chemical components with recycled content. The foil facers used on PIR products are typically 70 to 80 percent recycled aluminum. The industry reportedly used 20 to 30 million pounds of recycled postconsumer chemicals in 1993.7