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Radiant Tubing exposed

Jeff W_2
Jeff W_2 Member Posts: 57
in THE MAIN WALL
Looking for some advice on this one- a customer has radiant floor installed in master bath. Two feet of the floor is over an eave- not sure of the insulation that was done at the time of install.

The customer has a furnace doing part of the house and someone ran a supply duct into a wall cavity to heat this space. We are assuming that the radiant contractor did this to protect the tubing from freezing, but we are not certain. We want to eliminate this furnace but want to make sure this radiant tubing is protected. Any ideas or thoughts?

Comments

  • SWEI
    SWEI Member Posts: 7,356
    Freeze protection

    Assuming the system (or the zone) does not get turned off, a healthy differential in U-value between up (floor) and down (outside) should take care of it.
  • Jeff W_2
    Jeff W_2 Member Posts: 57
    Thanks SWEI---

    ...so I understand- you're saying they should insulate that area for a lower U-value, yes?
  • SWEI
    SWEI Member Posts: 7,356
    Insulation

    below much bigger than the U-value of the floor upwards from the tubing.  More is better - I'd fill the cavity with wet-spray cellulose (foam will work, but there are caveats WRT moisture and dewpoint there.)
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