kingspan TF73 as a bathroom floor?

Discussion in 'Builders' Talk' started by nakedterry, Mar 22, 2006.

  1. nakedterry

    nakedterry New Member

    check this out

    I was thinking of using this as replacement floor in my bathroom and tile over it. It is a normal joist and board floor. I want to get rid of the bath and install a stone resin shower tray.

    Problem is, the TF73 stuff is chipboard but Kingspan say this :
    Kingspan Thermafloor TF73 zero ODP is not
    sensitive to moisture of any kind. Its surface is
    water–repellent and there is no capillary suction. The
    material is also not hygroscopic. Over a 28 day
    cycle with temperature fluctuating 20/40°C its water
    absorption is <0.5% when tested to BS 3837: Part 2:
    1990 (1996) (Specification for extruded boards).

    1. Will it be strong enough to support the tray and stop movement?
    2. Will it be OK in a bathroom environment?

    Discuss. :)
  2. jasonb

    jasonb New Member

    You will have to lay it on a flat surface not joists as it needs full support underneath.

    Will the extra height be a problem

    I still wouldn't be happy tiling onto chipboard.

    If you want a lightweight board with insulation qualities that you can tile straight onto then try Wedi board.

  3. jasonb

    jasonb New Member

    Sorry it will work on joists.

  4. diymostthings

    diymostthings Well-Known Member

    Check the fire performance. Some of this stuff is polyurethane foam which can burn well and release toxic fumes. Could be wrong in this case but worth checking.

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