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soft wash--vinyl siding

Discussion in 'Power Washing' started by clay duncan, May 28, 2013.

  1. clay duncan

    clay duncan LawnSite Senior Member
    Messages: 445

    I soft washed a light grey vinyl sided house today and the vinyl on the back of the house which catches a lot of sun, had streaks in it that were not there before I washed it.......the rest of the house was fine and I have not had that problem happen before.....my 55 gallon tank mix consists of 6 gallons 12.5 percent sodium hypochlorite and 1 quart greenwash........is there something I could do to the vinyl to restore faded color?......and does my mix sound about right?..........I double my mix for asphalt roof cleaning with great results.....Clay
  2. ashs inc

    ashs inc LawnSite Senior Member
    from alabama
    Messages: 601

    take some pics. and lets see
  3. 32vld

    32vld LawnSite Gold Member
    Messages: 3,983

    To avoid streaks always wash from the bottom up.
  4. whiffyspark

    whiffyspark LawnSite Fanatic
    Messages: 6,293

    How old was the house. Was the siding chalky?

    Did you use a surfactant?

    Washing from the "bottom up" has nothing to do with this. And personally wash from the top down. Do you wash your car from the bottom up too?
    Posted via Mobile Device
  5. 32vld

    32vld LawnSite Gold Member
    Messages: 3,983

    No because cars do not streak the way houses, decks, and fences can.
  6. clay duncan

    clay duncan LawnSite Senior Member
    Messages: 445

    yeah, the siding was kinda chalky from being sunbleached.......I use greenwash which has a surfactant in in as well...........
  7. whiffyspark

    whiffyspark LawnSite Fanatic
    Messages: 6,293

    Yeah that's your problem. Not much you can do. Ask on softwash forums and ac will tell you

    I don't use greenwash, but I do use apple sauce. Greenwash is nice because it reduces your sh use
    Posted via Mobile Device
  8. Everett Abrams

    Everett Abrams LawnSite Member
    Messages: 32

    The correct method taught in the industry is to wet the surface well from bottom up and then apply your cleaner from the bottom up. Allow for the proper dwell time and rinse from the top down. Chemicals can leave streaks on surfaces when not properly applied. When estimating a job you should perform a "finger test" and if there is oxidation you should determine whether the job can be done and then inform the customer either way. We also always ask how old the siding is so we have more information as well.
  9. Jimmy1002

    Jimmy1002 LawnSite Member
    Messages: 5

    We use "roof snot" for our surfactant.

    FCPWLLC LawnSite Senior Member
    Messages: 352

    Oxidation can be removed. I like F13 for this. It helps emulsify the oxidation and allows for simple brushing or low pressure rinsing away. Other chemicals that work well on oxidation are butyl based.

    That said, this is considered restoration and not basic cleaning. Adjust for pricing as you will be there 4 times longer on a restore. The number one reason we wash with LOW pressure is not to disturb oxidized surfaces.

    And yes, always apply soap from bottom up and rinse top down to AVOID streaking.

    Elemonator and 12% is house wash of choice at the moment. Lowest cost and best concentration of surfactant out there.

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