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Laying Underfloor heating Pipes

Discussion in 'Plumbing and Central Heating' started by Taliz, 19 Oct 2011.

  1. Taliz

    Taliz

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    I am laying underfloor heating pipes, followed by a sand and cemend screed.
    I have read that the pipes need to be under pressure whilst the screed is layed and dries.

    Is this really nesessary. There are no joints under the screed. I will heat the floor up fully and allow to cool before tiling to get any possible cracking out of the way.

    I cannot connect the pipes to the manifoild as the walls are not plastered and there is no roof on the extension yet.
     
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  3. DeltaT2

    DeltaT2

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    Most put a board on the wall mate & connect the manifold/pipes etc. This will permit you to test as required. And a test is required, this not only ensures all the pipes are water tight, but if you leave it on test, and a pipe gets damaged you'll know right away.

    You don't want cracks in any concrete containing pipes mate, two concrete surfaces moving will bust the pipes!!
     
  4. Taliz

    Taliz

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    Thanks for the reply.

    Have ordered the manifold so I can connect it all up before screeding.

    Cheers
     
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