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  1. #1

    Default 4 inch curb in garage

    I am looking for a code referrence on the height of the curb in the garage. I know I have seen it somewhere but I cant find anything.

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  2. #2
    Join Date
    Mar 2007
    Location
    Healdsburg, CA
    Posts
    1,741

    Default Re: 4 inch curb in garage

    Allen, curb for what reason? Are you talking about a bollard to help protect a furnace or water heater from vehicle impact?

    Jerry McCarthy
    Building Code/ Construction Consultant

  3. #3
    Join Date
    Mar 2007
    Location
    Philadelphia PA
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    3,177

    Default Re: 4 inch curb in garage

    I think he's talking about a curb at the door to the house to reduce gas fumes from crossing the threshold.


  4. #4

    Default Re: 4 inch curb in garage

    Jerry,

    Sorry for the lack of a better description. (it made since in my head)
    John was correct, I am referring to the curb in front of the garage door to prevent gas fumes from entering the structure.


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

    Default Re: 4 inch curb in garage

    Quote Originally Posted by Allen Lott View Post
    I am looking for a code referrence on the height of the curb in the garage. I know I have seen it somewhere but I cant find anything.
    No requirement that I'm aware of. Same goes for the automatic closers on the home to garage door. Use to be, but no longer. Although I have heard of some AHJ's still enforcing it.

    The idea of the curb was not to stop fumes, but rather to stop liquids. A 4" curb won't do much to stop fumes. Remember how high a water heater needs to be in a garage?

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

  6. #6
    Join Date
    Oct 2003
    Location
    Rockwall Texas
    Posts
    4,519

    Default Re: 4 inch curb in garage

    I've always heard the curb was not to stop a vehicle or about the gas fumes, but as Scott said for water runoff from vehicles not to enter the structure after coming in from the rain.

    The only thing is most garage are only about 22 ft. deep and when the vehicle is parked into this space, the front of the car overhangs the curb area still allowing water run-off to drip onto this area. I've seen walls in front of garage where the sill plates are decayed due to this.

    rick


  7. #7
    Join Date
    Mar 2007
    Location
    Healdsburg, CA
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    1,741

    Default Re: 4 inch curb in garage

    This thread begs the question how many inspectors note the garage floor sloping towards the vehicle door or lack of such?
    Also, large gaps at the door bottom?

    Jerry McCarthy
    Building Code/ Construction Consultant

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