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Thread: Chems for cleaning Hardie board cement siding?

  1. #1

    Question Chems for cleaning Hardie board cement siding?

    I am seeing more of this cement siding and finally got a gig to clean some. Does anyone have experience with this i.e. what chems. work well, or any words of caution?

    an ounce of prevention...
    Joe Murray
    Perfect View Services
    Window cleaning & Pressure Washing
    Mid-Hudson Valley, NY
    jfmurray1@mac.com

  2. #2

    Default Re: Chems for cleaning Hardie board cement siding?

    If it is painted, typical House wash mix and mthods will be fine. Same low pressure proccess as Vinyl Siding.
    Michael Kreisle
    First Choice Power Washing LLC
    Lexington, KY 859-983-5955
    BBB Member, UAMCC Member, PWNA Member, GLAA Member
    We own and operate a great Cleaning Service in Lexington KY as well as provide
    awesome Pressure Washing and Roof Cleaning services.



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  3. #3

    Default Re: Chems for cleaning Hardie board cement siding?

    I went to the manufacturer's website and they recommend the following and there is alot more info on the link I am providing.

    "High Pressure water blasts (e.g. pressure washers and sand
    blasting) will damage the surface of fiber-cement. James
    Hardie does not recommend these methods of cleaning. Low
    pressure water spray, or a soft brush are more suitable"

    Look under the "Tips and articles" section http://www.jameshardie.com/homeowner...ocuments.shtml
    Lonnie and Nikki Greenwood
    ANR Pressure Washing, Inc
    Deltona, Florida
    386-232-4388 Office
    386-473-6809 Cell
    lonnie@anrpressurewashing.com [url]www.anrpressurewashing.com
    serving the following states FL GA SC NC TN VA TX Or and states in between Go UAMCC!!!!!!!

  4. #4

    Default Re: Chems for cleaning Hardie board cement siding?

    Be sure to "Hand Check" for oxidation, this siding is prone to oxidize badly on the side that gets the most Sun. Like Mike said "Low Pressure"

  5. #5

    Default Re: Chems for cleaning Hardie board cement siding?

    Do not put to much of the 12% on it. The painted siding will fade easily. We already had a problem last summer in the heat with to much house wash. Just be careful or you can be painting.
    Pressure washing in Pa.
    Brian Wendling
    Rolling Suds Inc.
    www.Rollingsudsinc.com

  6. #6

    Default Re: Chems for cleaning Hardie board cement siding?

    Using some kind of a low pressure water spray with a soft brush could be fine for the sidings. It couldn't damage the sidings, even if it is highly prone to oxidize
    Last edited by Ken Fenner; 02-16-2010 at 09:45 PM. Reason: banned for spam posting

  7. #7

    Default Re: Chems for cleaning Hardie board cement siding?

    It is painted and it's been on less than a year, i think, so oxidation is not an issue yet. I have taken your advice and checked their web site, low pressure is way to go. I just talked this guy into waiting till it warms up a bit, it would be mess right now (mid 30's) so i'll keep this on file.

    Excellent stuff guys!

    Thanks a bunch!
    Joe Murray
    Perfect View Services
    Window cleaning & Pressure Washing
    Mid-Hudson Valley, NY
    jfmurray1@mac.com

  8. #8

    Wink Re: Chems for cleaning Hardie board cement siding?

    Did one last fall, last job of the year in fact. As posted low pressure and a mild mix with a soft brush. Worked so well it was ALMOST like stealing.
    Randy Borio
    Panther Outdoor Maint. Service
    815.481.2292
    pantheroutdoor@gmail.com


  9. #9

    Default Re: Chems for cleaning Hardie board cement siding?

    I have seen the incorrect paint used and the paint start to chalk and absorb moisture in one year. Mildew gets sucked in a bit more and more work to get rid of.
    Diamond Jim's LLC
    Wood & Stone Restoration
    Pressure Cleaning
    Waterbury CT

    James Foley

  10. #10

    Default Re: Chems for cleaning Hardie board cement siding?

    I clean Hardie most everyday. House wash mix and lo pressure works every time.


    Doug Rucker-Owner/Operator
    Roof Cleaning Kingwood Texas
    281.883.8470

    We are a fantastic Pressure Washingand awesome Roof Cleaning Company located in Humble Texas



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