Comparing Moisture Meter Readings with Measured Equilibrium Moisture Content of Gypsum Board

    Volume 36, Issue 3 (May 2008)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 29 February 2008

    Page Count: 8


    Greenwell, Dale J.
    U.S. Environmental Protection Agency, National Risk Management Research Laboratory, Air Pollution Prevention and Control Division, Indoor Environment Management Branch, RTP, NC

    Menetrez, Marc Y.
    U.S. Environmental Protection Agency, National Risk Management Research Laboratory, Air Pollution Prevention and Control Division, Indoor Environment Management Branch, RTP, NC

    (Received 19 April 2007; accepted 19 January 2008)

    Abstract

    Moisture meters routinely used in the field to determine the moisture content in gypsum wallboard are primarily designed and manufactured to measure the moisture content of wood. Often they are used to decide whether to replace wallboard by determining if moisture is qualitatively higher or lower than another location. Because the moisture meter is so widely used, it is necessary to establish methods to ensure their usefulness and dependability as an aid in wallboard moisture detection and remediation. A method was developed to create a series of gypsum wallboard moisture content reference standards by exposing wallboard sample sections to static moisture content levels. Gravimetric analysis revealed good accuracy and precision of the reference standards to their theoretical values. A moisture meter was then compared against these reference standards to determine the meter’s accuracy and precision.


    Paper ID: JTE101193

    DOI: 10.1520/JTE101193

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    Title Comparing Moisture Meter Readings with Measured Equilibrium Moisture Content of Gypsum Board
    Symposium , 0000-00-00
    Committee D22