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  1. #1
    Sale Jovic's Avatar
    Sale Jovic Guest

    Default Ghosting or mold - not sure

    We are pending home inspection any day now and since we had a picture of the suspected issue with the house (Fannie Mae REO house) I wanted to ask for more opinions.
    There is no any type of smell in the house when we walked through and everything looks good, but only thing I noticed was somewhat shadows / ghosting (pic attached) that I am not sure could it be mold or just ghosting.

    We really like the house (you definitely heard that line before) and hope this is not big issue but still inspection will tell I guess:

    What do you think?

    Note: This section on the picture shows darker shadow / ghosting and there are no marks of water leak; just visible dirt. Above this formal living room/formal dining is higher ceiling which is flat - there is a little bit of attic above which is faced north. Not sure if Ice could have caused this over the past years but figured to share and see what you think.

    Thankful in advance for all the help!

    imm.io - photo 10.jpg

    imm.io - photo 20.jpg

    UPDATE:
    We were inside the house today again to have a relative see it and took another picture - it looks like along the edge of the wall-ceiling junction ghosting shows - again, no smell, no issues.

    I should say that FMae asked for only $1000 earnest money as it looks like they are pretty sure they will sell this house no problem - fingers crossed (waiting to hear on home inspection date).

    imm.io - photo 500.jpg

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    Last edited by Sale Jovic; 01-13-2013 at 04:56 PM.
    Inspection Referral

  2. #2
    Join Date
    Aug 2011
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    Bennett (Denver metro), Colorado
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    Default Re: Ghosting or mold - not sure

    Those lines on the ceiling are ceiling joist "shadows". I believe they are formed (never confirmed this) by poor insulation in the attic. The joists get very cold in the winter. The warm moist interior air condenses slightly where the joists are not well insulated from the cold attic. Over time, this chronic condensation discolors the area. Often, the shadows will bleed through new paint. I recommend using a stain killer primer like "Kilz" before repainting. And add some insulation to the attic.

    They are just a cosmetic condition and are not a reason to not buy the house, imo.

    If you choose not to decide, you still have made a choice.

  3. #3
    Join Date
    Mar 2007
    Location
    Washington State
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    579

    Default Re: Ghosting or mold - not sure

    Quote Originally Posted by Lon Henderson View Post
    Those lines on the ceiling are ceiling joist "shadows". I believe they are formed (never confirmed this) by poor insulation in the attic. The joists get very cold in the winter. The warm moist interior air condenses slightly where the joists are not well insulated from the cold attic. Over time, this chronic condensation discolors the area. Often, the shadows will bleed through new paint. I recommend using a stain killer primer like "Kilz" before repainting. And add some insulation to the attic.

    They are just a cosmetic condition and are not a reason to not buy the house, imo.
    I agree, Lon described it well. The "ghosting" can also be caused by burning candles on a regualr basis, which has become more popular over the last few years. The soot from the candles is attracted to the cooler surface where studs are located. Also be aware that it's common for homes have lower insulation depth in attic near the outside wall.


  4. #4
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
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    Default Re: Ghosting or mold - not sure

    Ghosting -

    https://docs.google.com/viewer?a=v&q...QnU4uOH376YJCQ

    Brownian Motion
    The problems are related to four deposition mechanisms: filtration, electrostatic attraction, thermal deposition due to Brownian motion and impaction. These deposition mechanisms cause tiny microscopic airborne particles to:
    "filter out" in carpets;
    "plate out" on charged surfaces due to electrostatic attraction
    "plate out" on cold surfaces due to "Brownian motion"; or
    "plate out" on surfaces due to impaction.


  5. #5
    Join Date
    Jul 2008
    Location
    Chicago
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    261

    Default Re: Ghosting or mold - not sure

    InspectAPedia has a lot of info on the subject. Weak insulation and burning candles are the likely cause.

    Thermal Tracking, Bridging, Ghosting: How to Diagnose Indoor Wall or Ceiling Ghosting Stains, Building Air Leaks, & Heat Loss


  6. #6
    Join Date
    Aug 2007
    Location
    Memphis TN.
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    4,311

    Default Re: Ghosting or mold - not sure

    Quote Originally Posted by Mike Lamb View Post
    Weak insulation and burning candles are the likely cause.
    Or a small gap in the Sheetrock between the wall and ceiling.

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  7. #7
    Join Date
    Mar 2014
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    wISCONSIN
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    1

    Default Re: Ghosting or mold - not sure

    Quote Originally Posted by Mike Lamb View Post
    InspectAPedia has a lot of info on the subject. Weak insulation and burning candles are the likely cause.

    Thermal Tracking, Bridging, Ghosting: How to Diagnose Indoor Wall or Ceiling Ghosting Stains, Building Air Leaks, & Heat Loss
    Thanks for the link to InspectaPedia. awesome informational site.


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