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    Wind-Resistance Tests of Roof Shingles and Roof Assemblies

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    Two laboratory test methods have been developed in the past few years to aid architects, engineers, manufacturers, and regulatory agencies in the evaluation of the wind resistance of roof covering and roof deck materials and construction methods. The test apparatus and methods are described in this paper. They are based on the effects of high-wind conditions on buildings as determined by observations of storm damage and wind-tunnel tests of model structures. One method evaluates the resistance of asphalt strip shingles, of the self-sealing and lock types, to high-velocity air flow. The other method evaluates the wind-uplift resistance of 10 by 10-ft sections of roof decks under the application of positive pressure on the underside and vacuum (negative) pressure on the topside of the roof. The results of various curing and outdoor exposure conditions on self-sealing shingles are related. Also, uplift tests of three common forms of roof decks and of clip methods for attaching insulation board to metal decks are described. While data are not yet available showing correlation between these laboratory tests and wind storms, the methods appear to provide engineering data useful in evaluating relative wind resistance of materials and assemblies.


    wind-resistance tests, roofing, shingles, storm damage, wind-tunnel tests

    Author Information:

    Benjamin, I. A.
    Director of research, Granco Steel Products Co., St. Louis, Mo

    Bono, J. A.
    Managing engineer, Underwriters' Laboratories, Inc., Northbrook, Ill

    Committee/Subcommittee: D08.02

    DOI: 10.1520/STP41294S