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  1. #1
    Join Date
    Nov 2013
    Location
    Maine
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    Exclamation multiple home owner

    Can anyone comment on the validity of using a moisture meter to take readings on exterior clapboard on a wind-driven, rainy day. What is the likelihood that we will receive false positives? Is it customary to ask that the reading be taken on a dry day?

    2018 ASHI InspectionWorld

  2. #2
    Join Date
    Mar 2007
    Location
    Knoxville, TN
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    2,446

    Default Re: multiple home owner

    It wouldn't be my first choice.


  3. #3
    Join Date
    Mar 2007
    Location
    Plano, Texas
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    4,170

    Default Re: multiple home owner

    What is the purpose for the readings? Wet siding is wet, what more do you expect to find?

    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

  4. #4
    Join Date
    Mar 2007
    Location
    Columbus GA
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    3,746

    Default Re: multiple home owner

    Quote Originally Posted by Anne Reilly View Post
    Can anyone comment on the validity of using a moisture meter to take readings on exterior clapboard on a wind-driven, rainy day. What is the likelihood that we will receive false positives? Is it customary to ask that the reading be taken on a dry day?
    First off, the readings of the moisture were most likely, not false.
    The moisture meter did detect moisture.
    What you are wanting to know is, can the MM readings be relied on to determine the amount of moisture in the siding. Short answer, No. But someone experienced in using and interpreting the MM may still get useful results even under less than ideal conditions (doubtful).
    I would obtain another analysis, if for no other reason than for comparison.

    Last edited by Rick Cantrell; 11-06-2013 at 07:11 AM.
    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  5. #5
    Join Date
    Mar 2012
    Location
    Lansdale, PA
    Posts
    876

    Default Re: multiple home owner

    Quote Originally Posted by Anne Reilly View Post
    Can anyone comment on the validity of using a moisture meter to take readings on exterior clapboard on a wind-driven, rainy day. What is the likelihood that we will receive false positives? Is it customary to ask that the reading be taken on a dry day?
    I would not not rely on those readings, but like another poster asked, what is the purpose of the readings? The moisture in wood siding will change with relative humidity. If someone is trying to determine the moisture level behind the siding then taking readings of the siding would not be a reliable method.


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