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  1. #1
    Clay White's Avatar
    Clay White Guest

    Default Powdery substance on window sill

    Last edited by Clay White; 01-02-2008 at 02:25 PM.
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  2. #2
    Join Date
    Mar 2007
    Location
    Plano, Texas
    Posts
    4,245

    Default Re: Powdery substance on window sill

    Dirt.
    Everything that washes down from above collects on the ledge until it dries up and leaves the dirt behind.
    Did you taste it?

    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

  3. #3
    Join Date
    Oct 2003
    Location
    Rockwall Texas
    Posts
    4,521

    Default Re: Powdery substance on window sill

    Probably a pest control supply dust for carpenter ants.

    Some would use a boric acid base but it wouldn't be dark like that.

    The more I look at it, it looks like dirt as Jimbo said.

    rick


  4. #4
    Join Date
    Mar 2007
    Location
    Fletcher, NC
    Posts
    28,032

    Default Re: Powdery substance on window sill

    It's on the inside, stepped up, part of the sill where the window closes to, so it's basically 'out of the weather'.

    But, is there a rubber/vinyl/foam/weatherstrip along the bottom of the bottom sash which closes there?

    If the 'powder' was 'fine granules', did they roll around like ball bearings? If so, possibly drywood termite frass (but that is an unusual location to find it).

    Jerry Peck
    Construction/Litigation/Code Consultant - Retired
    www.AskCodeMan.com

  5. #5
    Join Date
    Mar 2007
    Location
    Fletcher, NC
    Posts
    28,032

    Default Re: Powdery substance on window sill

    If these threads were not posted by two different people in two different locations, I'd have guess that this was the inside view of this window.

    http://www.inspectionnews.net/home_i...eep-holes.html

    But it's probably similar, even being two different houses.

    Jerry Peck
    Construction/Litigation/Code Consultant - Retired
    www.AskCodeMan.com

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