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  1. #1
    Join Date
    Mar 2007
    Location
    Chicago, IL
    Posts
    2,797

    Default Carpetign on exterior concrete

    I've read that carpeting on exterior concert flatwork and stairs can accelerate concrete deterioration (especially in climates with frequent freeze-thaw cycles), but now cannot find a cite to that effect.

    Anyone know if this is true?

    Have a cite?

    Thanks

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

  2. #2
    Ron Bibler's Avatar
    Ron Bibler Guest

    Default Re: Carpetign on exterior concrete


  3. #3
    Mitchell Toelle's Avatar
    Mitchell Toelle Guest

    Default Re: Carpetign on exterior concrete

    Quote Originally Posted by Ron Bibler View Post
    Not true Ron. Sorry to differ with you, but concrete is porous. Moisture easily enters concrete, and when freezing occurrs the moisture/ ice expands, potentially causing damage to the concrete. After a few times of this expansion small cracks become larger. Common scense says that this will damage concrete.

    Not sure if having carpet over the top would have an affect but the carpet would hold moisture longer, giving a better chance that freeze affect would happen.


  4. #4
    Ron Bibler's Avatar
    Ron Bibler Guest

    Default Re: Carpetign on exterior concrete

    Quote Originally Posted by Mitchell Toelle View Post
    Not true Ron. Sorry to differ with you, but concrete is porous. Moisture easily enters concrete, and when freezing occurrs the moisture/ ice expands, potentially causing damage to the concrete. After a few times of this expansion small cracks become larger. Common scense says that this will damage concrete.

    Not sure if having carpet over the top would have an affect but the carpet would hold moisture longer, giving a better chance that freeze affect would happen.
    Mitch My point was looking at the impurities from carpeting.

    As to water/Ice and expansion. Yes this can have some effect. But this would still go back to the impurities in the original mix. Bad mix will provide voids in the concrete for moisture to enter and freeze and expand. but if you have a good mix the amount of moisture will be limited and any amount of damage will be limited. We can see this in a 5 sack mix to a 6 sack mix.

    If you have some better information on this please provide a link or a printed paper.

    As this is what John was asking for not our opinion.

    Best

    Ron


  5. #5
    A.D. Miller's Avatar
    A.D. Miller Guest

    Default Re: Carpetign on exterior concrete

    If carpet or even the adhesive used to install it damages concrete in any way, then the concrete itself is defective.


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