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Pex tubing loose in flooring plates. Silicone vs no silicone

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heathead
heathead Member Posts: 241
in Radiant Heating
I have pex-al tubing in panel system that has some space between the tube and the aluminum plates (not a tight fit).  I would think that silicone is an insulator, but is it less of an insulator than air, or  does the pex-al radiate the heat to the aluminum with the air gap.   I see Uponor uses silicone in their quick trak system. Is silicone with a radiant panel going to increase or decrease performance.  Are their any other products that might work better, or is it all a mute point.   Thanks

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  • NRT_Rob
    NRT_Rob Member Posts: 1,013
    if it's a loose fit

    make it a good fit any way you can. silicone is much better than air.
    Rob Brown
    Designer for Rockport Mechanical
    in beautiful Rockport Maine.
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