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Thread: Is this mold?

  1. #1
    Ron Bishop's Avatar
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    Default Is this mold?

    Is the white powdery residue in this photo mold? No moisture was present at time of inspection.

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  2. #2
    Join Date
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    Default Re: Is this mold?

    Don't know. I would say it is a leak of some type. It looks like efflorescence, possible from a sink, toilet, tub, washing machine, etc. Salts/minerals from water.

    Scott Patterson, ACI
    Spring Hill, TN
    www.traceinspections.com

  3. #3
    Ron Bishop's Avatar
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    Default Re: Is this mold?

    Thank you Scott


  4. #4
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    Default Re: Is this mold?

    Mold?

    Well, *it is* "fungi".

    And "mold" is "fungi".

    But I would not want to go start chasing that "mold" dog down.

    That "fungi" (it is a "fungus") is likely damaging the wood, did you jab your screw drive into the wood?

    If the wood is soft and damaged, then it is a 'structural' problem/

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  5. #5
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    Default Re: Is this mold?

    How did it taste?


  6. #6
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    Default Re: Is this mold?

    "If the wood is soft and damaged, then it is a 'structural' problem/"

    The problem was present befor it got wet, NO joist hanger present.

    badair http://www.adairinspection.com Garland, TX 75042 TREC # 4563
    Commercial-Residential-Construction-EIFS-Infrared Thermography
    life is the random lottery of events followed by numerous narrow escapes

  7. #7
    Greg D. Dames's Avatar
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    Default Re: Is this mold?

    Ron - Were you able to isolate where the water source was coming from.
    I don't believe that the white power is mold I think that Scot has aim on what your seeing. Although the darker sections maybe supporting some dormant fungal activity especially if the woods moisture level is as your indicating dry 12% and below.

    The water source may have had something in it that has left the white residue or crystals (salt?)

    It appears very different than the plaster residue that we see on the subfloor framing on older homes.

    Regards
    Greg D. Dames
    National ThermoGraphic Inspections
    Pacific Mold Assessment


  8. #8
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    Default Re: Is this mold?

    Ron,

    Is there tile above? Might be minerals like Scott said.

    Department of Redundancy Department
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  9. #9
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    Default Re: Is this mold?

    Looks like a past water stain from a shower or bath room.
    What is the location?

    Best

    Ron


  10. #10
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    Default Re: Is this mold?

    Without testing who knows?

    These stains could be the result of the leak causing break down of the glues in the plywood.

    The value of experience is not in seeing much, but in seeing wisely.

  11. #11
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    Default Re: Is this mold?

    Ditto post #4.

    Steven Turetsky, UID #16000002314
    homeinspectionsnewyork.com
    eifsinspectionsnewyork.com

  12. #12
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    Default Re: Is this mold?

    Without testing no one knows for sure.
    Beyond that, the picture is very typical of plywood that has been soaked with water, dried and re-soaked repeatedly over time. I've seen this often.
    What it is isn't as important as noting the damage and possible consequences in your report.
    Good luck.

    www.aic-chicago.com
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    "The Code is not a ceiling to reach but a floor to work up from"

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