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  1. #1
    Join Date
    Aug 2010
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    BC Canada
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    Default siding power wash

    Just working around neighbourhood, the first I saw power wash cleaning vinyl siding loud noise. For sure the water will get behind vinyl. It should be dry out in a couple of days. any concern on siding power wash? Is stucco the worst?

    Thanks

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  2. #2

    Default Re: siding power wash

    Peter, It is my opinion that the stucco is not the worst (aslong) as no large cracks, or if a lath problem.


  3. #3
    Join Date
    Aug 2010
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    BC Canada
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    Default Re: siding power wash

    Should power wash be avoided on siding cleaning?


  4. #4
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
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    5,005

    Default Re: siding power wash

    It all depends on the out put pressure and the type of nozzle and the angle of the water spray.


  5. #5
    Join Date
    Mar 2007
    Location
    Spring Hill (Nashville), TN
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    5,847

    Default Re: siding power wash

    Quote Originally Posted by Peter Louis View Post
    Just working around neighbourhood, the first I saw power wash cleaning vinyl siding loud noise. For sure the water will get behind vinyl. It should be dry out in a couple of days. any concern on siding power wash? Is stucco the worst?

    Thanks
    Never power wash a house! You will force water into areas that you do not want water to go! Power washing a home regardless of the cladding is a good way to cause visible and hidden damage to it. Just don't do it!

    Us a garden sprayer with your cleaner of choice and then spray the cleaner off with the garden hose.

    Scott Patterson, ACI
    Spring Hill, TN
    www.traceinspections.com

  6. #6
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
    Posts
    5,005

    Default Re: siding power wash

    Vinyl siding institute
    Cleaning - VSI - The Vinyl Siding Institute

    Check with manufacture some recommend power wash others do not.


  7. #7
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,248

    Default Re: siding power wash

    Quote Originally Posted by Scott Patterson View Post
    Never power wash a house!
    Power washing a house happens frequently in Florida, we call that action "hurricanes".

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  8. #8
    Don Burbach's Avatar
    Don Burbach Guest

    Default Re: siding power wash

    A few years ago I did a relocation inspection of a nice home with a large sun-porch with dual pane windows. Most of the windows had moisture between the panes.

    The seller reported that her church group came over after Sunday Mass for a cleaning party with a power washer..... whoops! Bad lesson about power washers. Too much of a good thing.


  9. #9
    Join Date
    Oct 2010
    Location
    Southwest US
    Posts
    585

    Default Re: siding power wash

    I got a new power washer a couple months ago and "washed" my garage floor. Now I have grooves in the floor that look like grafitti. Apparently I should have used the fan spray, not the jet spray,


  10. #10

    Default Re: siding power wash

    Another thing to consider is that surfactants can minimize the water hold out ability of the WRB.
    Soap is a surfactant and when pressure washing you really can expose the WRB behind vinyl to this surfactant treatment.
    I also encourage people not to use a pressure washer on the siding.

    Mark Parlee
    The Building Consultant www.thebuildingconsultant.com
    “Real Solutions for Real Problems” EDI EIFS and Building Envelope

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