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New Conservatory Wiring TYPE choice.

Zoomup
Helloooooo All,


What is the preferred TYPE of cable to be run in a foundation dwarf wall cavity of a new domestic conservatory? The cables can not be run from above as the walls are glazed. The cables can not be run from below as there is underfloor heating to be installed.


The main concern is any adverse effect of any unknown thermal insulation such as polystyrene that may be added into the cavity upon the cable insulation.


Thanks,


Z.
  • 0
    LSF T&E is not affected by polystyrene so should be suitable.
  • 0
    Run sideways to stay in zones, or are you dropping into the cavity and claiming depth.

    Also note that small conservatories are building regs exempt, construction may not be as you would expect in a full size house. Also cables can be threaded into doof frames for architrave light switches etc.


    You could just put the corrugated flex conduit in the cavity to afford some protection, I have done this for phone and TV cable.

    M.
  • 0
    davezawadi (David Stone):

    LSF T&E is not affected by polystyrene so should be suitable.


    Thanks David, I never realised that.


    Z.


  • 0
    mapj1:

    Run sideways to stay in zones, or are you dropping into the cavity and claiming depth.

    Also note that small conservatories are building regs exempt, construction may not be as you would expect in a full size house. Also cables can be threaded into doof frames for architrave light switches etc.


    You could just put the corrugated flex conduit in the cavity to afford some protection, I have done this for phone and TV cable.

    M.


    The socket cables will be run in the "cavity zone". Beyond the reach of screws.


    Z.


  • 0
    Are the walls dot & dab?
  • 0
    Some PVC conservatories with an aluminium 'ring beam' around the top of the windows have a clip-on PVC cover that leaves some space for wiring behind it. You can then drop (or go up to lights) in PVC trunking which can look surprisingly inconspicuous against the PVC frames.

       - Andy.
  • 0
    AJJewsbury:

    Some PVC conservatories with an aluminium 'ring beam' around the top of the windows have a clip-on PVC cover that leaves some space for wiring behind it. You can then drop (or go up to lights) in PVC trunking which can look surprisingly inconspicuous against the PVC frames.

       - Andy.


    Thanks Andy, I was originally concerned about the lower socket supplies in the dwarf walls.


    Z.


  • 0
    Blencathra:

    Are the walls dot & dab?


    At this stage I do not know. I will have to speak to the builder.


    Z,


  • 0
    Zoomup:
    Blencathra:

    Are the walls dot & dab?


    At this stage I do not know. I will have to speak to the builder.




    Plastered dwarf walls - very posh!


  • 0
    Zoomup:
    Blencathra:

    Are the walls dot & dab?


    At this stage I do not know. I will have to speak to the builder.


    Z,




    I used to sub to conservatory builder and I never saw any insulation in dwarf walls, it was always D&D so I ran horizontally apart from crossing thresholds the I dipped into the cavity, occasionally I ran conduits prior to the slab being poured


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