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Plastic between concrete and plywood ???

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Steve R.
Steve R. Member Posts: 5
in THE MAIN WALL
Hi guys,

Some one mentioned to me today about using plastic between the plywood floor and the concrete slab with the radiant tubing in it. He also said that your not supposed to use plastic with Gypcrete. Does anyone know about this? Where can I get information regarding this?

Steve R.

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  • Dan Peel
    Dan Peel Member Posts: 431
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    Check the RPA information

    The theory behind your query.
    Gypcrete works best if it can adhere to the subfloor and expands at a comperable rate.
    Concrete products bond well to themselves but require a slip sheet, typically plastic sheeting, to prevent adhesion. You don't want the concrete sticking to your plywood - it expands much slower than the wood.
    Check for additional information at radiantpanelassociation.org
    Enjoy......Dan

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