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  • Pressure treated sill plate

    I was just told by my building inspector that I need to change out my sill plate on a inside closet wall that is not load bearing.Does this sound correct.It is on a slab floor, vapor barier under the concrete.
    thanks in advance.
    jss

  • #2
    Re: Pressure treated sill plate

    On Long Island - NY - If it is Contact with Concrete he is Correct.

    MPS

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    • #3
      Re: Pressure treated sill plate

      I lost my Uniform Building Code some time ago, but as I remember it, anything anywhere in this country at least, if in comes into contact with concrete it has to be green. I was called on a stud in a basement that was against a concrete wall supportint a beam, in Colorado.
      Also note "I just saw this last week" do not burn womanized wood, the fumes are a killer "cynide" if you sniff it, it will surley put your tool in the dirt. I thought everyone knew this.
      see me Mike

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      • #4
        Re: Pressure treated sill plate

        Green pressure treated is good but if you've got access to the black use it. It is rated for ground contact.

        That's all I use in building any more unless it goes any where near gardening beds, which is a whole other ball park. In fact I know of several of my suppliers who don't carry any thing other than the Black now.

        And the wetter the lumber the better for me. It means the less splinters I get and less garbage lumber I have to kul through.

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        • #5
          Re: Pressure treated sill plate

          If it is in contact with concrete it must be treated. That is all I have ever known. Now if it is copper nap or borate that seems to be a debate. I really like the "envoronmentally friendly" aspects of borate. For ground contact I have always used ammoniacal arsenate but man that stuff is nasty!

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          • #6
            Re: Pressure treated sill plate

            According to ICBO codes, if the slab is at least 3" thick, and has a vapor barrier underneath, plates do not need to be treated.

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            • #7
              Re: Pressure treated sill plate

              LOCAL Code supercedes ICBO when it is more restrictive. Long Island is a giant sand bar- It has been said that just about every home here has had or will have a termite invasion. Termites come up the masonry wall or through cracks in concrete. Therefore CCA sills are required when in contact with masonry - no matter how thick it is.
              MPS

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