In the United States alone, the demand for insulation materials is projected to grow approximately 6% annually through 2012. However, the SPF insulation market has been growing in excess of 20% annually since 2003. Since SPF continues to gain market share against other insulation types, exception growth rates are anticipated to continue, despite the current economic issues. This rate of growth is a positive for anyone considering starting a Spray Polyurethane Foam insulation business.