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    Wetness Monitoring on the Exterior of Infrastructures

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    The ASTM G-84 time-of-wetness sensor was used to study the moisture deposition on the exterior of a large building for an autumn and a winter period. It was possible to detect the presence of all types of moisture deposition and to measure the time-of-wetness at any location on the building. The influence of such parameters as orientation, design, and temperature on the moisture deposition is discussed.


    time-of-wetness, TOW, moisture, condensation, atmospheric corrosion, building materials

    Author Information:

    Hechler, J-J
    Senior Research Officer and Program Manager, Industrial Materials Research Institute, National Research Council of Canada, Boucherville, Province of Québec

    Committee/Subcommittee: G01.04

    DOI: 10.1520/STP19758S