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  1. #1
    Join Date
    Aug 2010
    Location
    BC Canada
    Posts
    368

    Default rusty or yellowish on stucco

    Hi Guys:

    What is that rusty or yellowish on stucco below crawl vent? the crawl is heated.

    Thank you

    Peter

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  2. #2
    Join Date
    Feb 2009
    Location
    Southern Vancouver Island
    Posts
    4,546

    Default Re: rusty or yellowish on stucco

    Could be dog pee. Don't worry about it.

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

  3. #3
    Join Date
    Aug 2010
    Location
    BC Canada
    Posts
    368

    Default Re: rusty or yellowish on stucco

    Thank you, Possible. My thought is the poor stucco finish & high humidity around vent, which caused rusty spots from metal mesh or vent screen, is it possible?


  4. #4
    Join Date
    Mar 2007
    Location
    Lake Barrington, IL
    Posts
    1,363

    Default Re: rusty or yellowish on stucco

    Around here it'd most likely be due to iron from well water that is sprayed onto the siding from a yard sprinkler.

    Eric Barker, ACI
    Lake Barrington, IL

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