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    Wind Resistance of Loose-Laid and Spot-Attached Single-Ply Roofing Membranes

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    Wind tunnel and current simulated uplift tests can be used to evaluate mechanically spot-attached single-ply membrane roofing systems if existing criteria for failure are modified. Tests indicate that these systems can be designed for use under very high wind conditions. Current simulated uplift tests cannot be used for evaluation of loosely laid single-ply membrane roofing systems. Wind tunnel tests are inconclusive regarding loosely laid systems in high wind areas but do indicate that increasing ballast weight or use of concrete pavers does not provide a large advantage. Use of bound gravel as ballast in loosely laid systems does provide resistance to significantly higher wind velocities.


    single ply, roofing, loose laid, spot attached, wind uplift, wind resistance, ballast, wind tunnel, simulated uplift

    Author Information:

    Goodwillie, JM
    Research Department, United States Mineral Product Company, Stanhope, N. J.

    Committee/Subcommittee: D08.20

    DOI: 10.1520/STP32468S