Siding spots

Discussion in 'Remodel Forum & Blog' started by Cookie, Jan 26, 2007.

  1. Cookie

    Cookie .

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    I noticed today that I have black spots on the siding of my addition. Is it possible that it is mold? If, so, does anyone know what to do? What would I use to scrub them off, and keep it away? Thank you.
  2. Cass

    Cass Plumber

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    5,980
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    [​IMG]


    Does it look like this? This pic is enlarged. This is shotgun mold.
    Last edited: Jan 27, 2007
  3. TedL

    TedL New Member

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    604
    Location:
    NY Capital District
    And most likely not on the sunny side of the house.

    Wash with a mix intended to remove mildew. Buy it at a big box, or make your own.

    I use this mix, starting with an empty 1 gal jug:
    1 qt laundry leach
    1 cup laundry detergent (liquid mixes easiest)
    1 cup general purpose cleaner (Simple green, Mr Clean, Spic-'N-Span,...whatever but *** NO AMMONIA***)
    warm water to fill the gallon

    I spray on with an ordinary garden sprayer (pump up), and highly recommend using liquids for items 2 & 3 if you intend to do the same, as the powders don't disolve as easily and can clog the screen. Brush as needed before rinsing.
  4. Cookie

    Cookie .

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    Cass, if that picture is greatly enlarged, then, yep, it does.

    The deck gets a full sun, but, this side of the addition it is sheltered.

    I will try that mixture, once, the weather breaks. Thank you.
  5. Randyj

    Randyj Master Plumber

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    1,047
    Location:
    Alabama
    Possibly bug do...? Sap? Are there cafes in the area where grease in the air might cause these deposits? (If it grows then it's a mold) Be careful using bleach...it might lighten the color of the siding....
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