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  • Users: autec
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  1. autec

    Commercial Roofing

    Has anyone had experience with Polyurethane Foam-in-Place Roofing Systems. I'm considering re-roofing a flat built-up asphalt roof with this system which consist of approximately 1 1/2&quot; of sprayed closed-cell polyurethane foam with 1&quot; of protective gravel on top. <br> <br> Thanks,<br>...
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