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How long does a spray polyurethane foam (SPF) roof last?

April 26, 2017foam polyurethane roof Roofing SPF spray

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How long does a spray polyurethane foam (SPF) roof last?

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The oldest performing SPF roofs are over 30 years old. Because the physical properties of the SPF change little with age, how long the SPF roof system lasts depends primarily on the original application and long term maintenance.