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  1. #1
    Join Date
    Mar 2007
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    Default Ceiling with fungi/mold spores

    Older house, 1963, that had one room that was covered with mold/fungi spores in the ceiling. The closer to an exterior door the more prevalent it was. Cause?
    ( 1st story room over a crawl space in a two story house)

    Jim

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  2. #2
    Join Date
    Mar 2007
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    Default Re: Ceiling with fungi/mold spores

    If it was mold, water is always the cause.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  3. #3
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    Default Re: Ceiling with fungi/mold spores

    No leaks or water stains


  4. #4
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    Default Re: Ceiling with fungi/mold spores

    There either IS moisture, WAS moisture, or it's not mold.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  5. #5
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    Default Re: Ceiling with fungi/mold spores

    JIM

    pictures always helps on this site--got any

    cvf


  6. #6
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    Default Re: Ceiling with fungi/mold spores

    Lack of heat, so a cold surface, and moisture, maybe from the crawlspace, maybe through the door. Or some other source of moisture, like a person breathing gives off moisture. All it takes to prevent it is bit of heat and air circulation.

    John Kogel, RHI, BC HI Lic #47455
    www.allsafehome.ca

  7. #7
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    Default Re: Ceiling with fungi/mold spores

    Sorry, I do have pictures

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  8. #8
    Garry Blankenship's Avatar
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    Default Re: Ceiling with fungi/mold spores

    Quote Originally Posted by Rick Cantrell View Post
    There either IS moisture, WAS moisture, or it's not mold.
    An Amen for Rick. No moisure, no mold, ( was and is aside ). Hope you have a respirator. Correction; that would not be mold, but "organic biological growth".


  9. #9
    Join Date
    Feb 2008
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    Caledon, Ontario
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    Default Re: Ceiling with fungi/mold spores

    Have it tested to ensure it actually is mould.


  10. #10
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    Aug 2011
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    Bennett (Denver metro), Colorado
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    Default Re: Ceiling with fungi/mold spores

    Usually..........when I see that kind of mold-like substance on a ceiling, it is associated with some source of high humidity from inside the room. Maybe a past occupant had several aquariums or a room humidifier cranked to high.


  11. #11
    Join Date
    May 2010
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    No. San Diego Co., CA
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    Default Re: Ceiling with fungi/mold spores

    GrowLab or other horticultural endeavors?


  12. #12
    Join Date
    Oct 2009
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    michigan
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    Default Re: Ceiling with fungi/mold spores

    Closer to exterior door = closer to exterior wall = ice dam?


  13. #13
    Join Date
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    Bennett (Denver metro), Colorado
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    Default Re: Ceiling with fungi/mold spores

    My additional two cents is that if my scenario of high humidity inside is correct. Then it would make sense that there would be more mold near the door. Whenever the door is opened, cold air comes in and cools the ceiling near the door. More condensation occurs on the cooler area and hence, more moisture to promote the mold.


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