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Plastering over Copper water pipe

Discussion in 'Plumbing and Central Heating' started by Gammy leg, 7 Aug 2018.

  1. Gammy leg

    Gammy leg

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    Hi,

    Is it safe to plaster directly over copper water pipes or should they be wrapped or protected somehow. I've got a couple running up a channel in my bathroom wall and will be getting the whole room re-plastered soon.

    Thanks
     
  2. Hot&Cold

    Hot&Cold

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  3. durhamplumber

    durhamplumber

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    Lol...how true.
     
  4. Gammy leg

    Gammy leg

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  5. hard-work

    hard-work

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    Plastic coated copper pipe was meant to be directly buried in plaster. The expansion of the copper was meant to be taken up by the plastic coating. It worked well with gas but not so well with water leaving cracks on hot water pipes.

    Many guys did a double wrap of Denso tape. The tape takes up expansion and protects the pipe, when the plaster is hard.
     
  6. durhamplumber

    durhamplumber

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    Jeez....that's a canny gouge in the wall
     
  7. hard-work

    hard-work

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    What is "canny"?
     
  8. hard-work

    hard-work

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    I have seen some use spray on foam then skim over. The foam takes up expansion of the pipe.
     
  9. Gammy leg

    Gammy leg

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    Is the problem likely to be with the expansion of the pipe(s) causing cracks to the plaster or long term corrosion of the copper by the plaster?

    Once the wall is plastered, I'll be tiling over it.
     
  10. hard-work

    hard-work

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    Do not plaster over the pipe leaving it in a duct under the tiles. Wrap the pipe with plastic tape.
     
  11. durhamplumber

    durhamplumber

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    Get out more dude!Or if you are the snowflake generation....Google it.
     
  12. dilalio

    dilalio

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    Gaffer tape. Never had any problems.
     
  13. HERTS P&D

    HERTS P&D

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    Or Monkey tape.

    Andy
     
  14. dilalio

    dilalio

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  15. durhamplumber

    durhamplumber

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    Yep....that is defo......a Fekin canny gouge
     
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