Spray polyurethane foam (SPF) insulation is a highly effective
weatherization product that is playing an important role in national efforts to dramatically increase the energy efficiency of our homes, schools, and buildings.
«America is in the midst of a large experiment in which
weatherization efforts, retrofits, and other initiatives that affect air exchange between the indoor and outdoor environments are taking place and new building materials and consumer
products are being introduced indoors with relatively little consideration as to how they might affect the health of occupants,» said a statement from John Spengler, the chairman of the committee that wrote the report.