The track record for spray polyurethane foam (SPF) roof and wall insulation is long and positive. This widely specified and installed roofing and building enclosure system provides good insulating qualities and long-term building protection. It is relatively easy to build with, and effective in terms of first and life-cycle costs. Recent events, however, including several major U.S. hurricanes, have revealed the real value of SPF as a safe, sturdy and effective product that endures severe weather better than many other commercially available exterior systems.
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