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Pex-AL-Pex for between the joist radiant

axeyal
axeyal Member Posts: 8
edited November 2022 in Radiant Heating
I'm planning adding staple up underfloor radiant heat between the joists of the first floor of my house.

I have access to some leftover Pex-AL-Pex 1/2 inch tubing. Has anyone used Pex-AL-Pex to run the radiant loops between the joists? 

How much more difficult is I compared to regular oxygen barrier pex?

I'm concerned it will bend and kink.

Thanks!

Comments

  • Paul Pollets
    Paul Pollets Member Posts: 3,662
    If it kinks, you'd have to cut out the kink and splice in a new piece. It's far easier to run 3/8" barrier pex within the plates, and avoid the hassles or wrestling 1/2" piping.
    axeyal
  • hot_rod
    hot_rod Member Posts: 23,028
    It can be done, but usually a two person job

    If you  are threading through holes drilled in joists, that is where you tend to kink it

    Do you have fittings for it?
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    axeyal
  • axeyal
    axeyal Member Posts: 8
    hot_rod said:

    It can be done, but usually a two person job

    If you  are threading through holes drilled in joists, that is where you tend to kink it

    Do you have fittings for it?

    Thanks hot_rod. I decided to go a different way since it is more difficult to work with compared to regular oxygen barrier pex.

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