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  1. #1
    Join Date
    Mar 2007
    Location
    Anacortes, Washington
    Posts
    393

    Default Weird patterns in garage floor

    New home inspection garage concrete had cell like patterns with salt efflorescence on the surface. My guess is that the installer did not put plastic down before the pour but I want to run it by the Inspection New community before I report it.

    Are these symptoms something the owner should be concerned about? I have inspected a lot of new construction and have never seen it this bad. What would I report?

    Thanks
    //Rick

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    Rick Bunzel
    WWW.PacCrestInspections.com
    360-588-6956

  2. #2
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
    Posts
    2,286

    Default Re: Weird patterns in garage floor

    Rick,

    Looks to me like the slab cured too fast, which resulted in the "crazed" pattern. I have seen this happen when the slab is in direct sunlight on a hot day.

    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  3. #3
    Join Date
    Oct 2003
    Location
    Rockwall Texas
    Posts
    4,517

    Default Re: Weird patterns in garage floor

    Rick,

    This was not by chance a model home was it?

    I've seen homes that had been models and the garage used for an office space while their selling the homes in the neighborhood.

    Once they sell out the neighborhood, sometimes I've seen them go in and put a parge type coat over the garage floor to hide surface flaws from where partition office walls have been in the model home.

    If not, the concrete mix looks like it might have cured out to quickly.

    Rick H.


  4. #4
    Join Date
    Mar 2007
    Location
    Anacortes, Washington
    Posts
    393

    Default Re: Weird patterns in garage floor

    Rick,

    It was a spec home that took over a year to sell. Don't think the builder made much on it.....

    //Rick

    Rick Bunzel
    WWW.PacCrestInspections.com
    360-588-6956

  5. #5
    Join Date
    Mar 2007
    Location
    Colorado Springs, CO
    Posts
    1,217

    Default Re: Weird patterns in garage floor

    Rick,

    If the concrete cured rapidly in direct sunlight (as Gunnar mentioned) the surface concrete may be weakened. If some of the water in the surface of the concrete evaporates rather than fully hydrating the cement that part of the concrete may not have achieved full strength. Food for thought.

    "Baseball is like church. Many attend but few understand." Leo Durocher
    Bruce Breedlove
    www.avaloninspection.com

  6. #6
    Join Date
    Mar 2007
    Location
    Peoria Arizona
    Posts
    75

    Default Re: Weird patterns in garage floor

    See following PDF on Crazing Concrete Surfaces:

    http://www.prmconcrete.com/cip/CIP03p.pdf

    Jeff Euriech
    Peoria Arizona


  7. #7
    Join Date
    Mar 2007
    Location
    Chicago, IL
    Posts
    2,797

    Default Re: Weird patterns in garage floor

    Jeff,

    Thanks for posting that link.

    Michael Thomas
    Paragon Property Services Inc., Chicago IL
    http://paragoninspects.com

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