STP409

    The Effects of Moisture on Built-Up Roofing Membranes

    Published: Jan 1967


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    Abstract

    The effect of entrapped moisture on blistering, buckling, and interply adhesion of built-up roofing membranes is well known. Shown in this paper is the added effect of moisture transmission into, and absorption by, the components of an otherwise dry system, using dry cup water vapor transmission measurements. Variations in the absorbed equilibrium moisture contents, and their vapor pressures, with changing environmental conditions seems to correlate well with observed roof behavior.

    Keywords:

    roofing, moisture content, blisters, buckling, delamination, moisture transmission, absorption, Fick's law


    Author Information:

    Tator, K.
    Kenneth Tator Associates, Coraopolis, Pa

    Alexander, S. H.
    Monsanto Co., St. Louis, Mo


    Paper ID: STP41299S

    Committee/Subcommittee: D08.17

    DOI: 10.1520/STP41299S


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