sunken microbore pipes

Discussion in 'Plumbing and Central Heating' started by mikeF00, 24 Sep 2017.

  1. mikeF00

    mikeF00

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    Hi, the builder that built my house chose to bury the copper microcore central heating pipes directly into the plaster. Over the years the pipes have expanded and cracked the plaster.
    I'm now about to decorate the hall and would like to know how to hide these pipes properly. I've probably got about 6 mm of plaster, then brick , and then probably air gap , and then breezeblock(internal garage wall).

    How do I do this?, some kind of conduit ?, and then plaster over?

    Any help appreciated
     
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  3. stem

    stem

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    In my parents 1981 built bungalow, the pipes run down to the radiators from the ceiling and are covered with a layer of thin insulation between the wall and the pipes, and also on top of the pipes. Then the pipes and the insulation are covered with cable capping and plastered over. There have never been any cracks since it was built.
     
  4. mikeF00

    mikeF00

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    Hi , thanks for replying. What do you mean when you say “thin layer of insulation”?, also ,what’s ‘cable capping ‘?

    Sorry to be a pain
     
  5. stem

    stem

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  7. mikeF00

    mikeF00

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    Hi, Does it look like the attached file in cross section?
    Green- pipe
    Red insulation
    Green- channel

    Black - wall
     

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  8. mikeF00

    mikeF00

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    I mean blue capping
     
  9. Over the years,Have seen a lot of serious defects where pipes are buried in walls. Plaster/render cracking is usual but have also seen pipes leaking due to corrosion and friction where the copper pipe expands/contracts against rough masonry.

    If pipes have to be buried in a solid wall,then they should be in conduit and have pipe/cable detecting foil attached.All available from johnguest. Foil-Tape1.jpg conduit pipe.jpg
     
  10. stem

    stem

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    It is more like this. Wrapping the insulation around the pipes would probably make it too thick for the plaster and capping to cover. I seem to remember that where the pipes are fixed to internal walls, there is no insulation between the pipes and the wall.

    Drawing1 Model (1).jpg
     
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