SPF roofing systems do not last.

Many research projects have been conducted to document the performance of SPF roofing systems throughout the United States. Among them, the National Roofing Foundation (NRF) conducted a series of surveys relating to the field performance of SPF roofs. The initial study was conducted in 1995, and a Phase II study was conducted several years later to look at unique SPF roofing details. Another study, which was performed at Arizona State University, documented the performance of SPF roofing in all parts of the United States. Over the course of several years, the customer satisfaction level was initially — and remained — very high for the roofing system.

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