Current Status: In Progress with Preliminary Successes Achieved
The Problem: Energy efficient insulation materials found in green buildings often contain toxic flame retardant chemicals. Polystyrene, polyisocyanurate, and polyurethane are energy efficient insulation materials whose use in green buildings is increasing. However, due to building flammability codes, flame retardant (FR) chemicals must be added. Most of these FRs have not been adequately evaluated for their impact on human health and the environment. When tested, many are found to be persistent, bioaccumulative, and/or toxic. Some are carcinogens, mutagens, reproductive, neurological, thyroid, and/or developmental toxicants.