How do you wash stain off house stucco?

Discussion in 'After Hours Lounge (Off Topic)' started by DustinLC, Jan 26, 2004.

  1. DustinLC

    DustinLC Supporting Actor

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    Some heavy rain we got recently washed some green growth on the roof to the side of the house. The house has stucco on the outside. Do I just get detergent and start scrubbing?
     
  2. Drew Bethel

    Drew Bethel Screenwriter

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    From ThisOldHouse.com

    "When we clean stucco, or other kinds of sidings for that matter, we use a concentrated cleaner designed for exterior use only, such as Jomax, and activate it with household bleach. After spraying any nearby plants with water to protect them from the chemicals, I mix the cleaner with bleach (following the directions on the cleaner bottle) and squirt the solution on the walls using a simple pump sprayer. After the stuff has been on for a few minutes, I gently rinse it off with a pressure washer, starting at the top of the wall and working down. Don't blast away with an aggressive nozzle or you could end up damaging the stucco surface."
     
  3. MikeH1

    MikeH1 Screenwriter

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    Muriatic or hydrochloric acid. Mixed with water to a 1/10th ratio.
     

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