Question How to run cables in walls with solid insulation?

Discussion in 'Home Cinema Building DIY' started by MIghtyG, Jul 24, 2018.


    1. MIghtyG

      MIghtyG
      Well-known Member

      Joined:
      Mar 1, 2008
      Messages:
      2,973
      Products Owned:
      0
      Products Wanted:
      0
      Trophy Points:
      136
      Ratings:
      +939
      Im looking to wall mount my new TV so need to run a couple of HDMI cables and the power lead for the TV - I have done this is the past easily enough in walls with fiberglass insulation but this is going to be my first go at solid foam insulation.

      the room is being mounted in is a recent build so I know I dont have any noggins to contend with, I just need a way to cleanly get past the sold foam insulation.

      Any one done this? Any tips/tricks/pointers?

      At the moment I am considering just using a set of flexible cable running rods and poke and prod my way through but I can imagine that being a pretty tedious way to do things and will do alot of damage to the insulation.

      TV is going in the middle of this wall......X marks the spot:

      upload_2018-7-24_12-15-47.png
       
    2. Navvie

      Navvie
      Active Member

      Joined:
      Apr 17, 2007
      Messages:
      921
      Products Owned:
      2
      Products Wanted:
      0
      Trophy Points:
      66
      Location:
      Fareham
      Ratings:
      +323
      I take it the photo isn't the wall in it's current state?
       
    3. MIghtyG

      MIghtyG
      Well-known Member

      Joined:
      Mar 1, 2008
      Messages:
      2,973
      Products Owned:
      0
      Products Wanted:
      0
      Trophy Points:
      136
      Ratings:
      +939
      Probably should have clarified that :)

      Photo is about +12 weeks ago - since then its been plastered and painted.

      EDIT:

      Current state of the room:

      upload_2018-7-24_12-46-10.png
       
      Last edited: Jul 24, 2018
    4. Navvie

      Navvie
      Active Member

      Joined:
      Apr 17, 2007
      Messages:
      921
      Products Owned:
      2
      Products Wanted:
      0
      Trophy Points:
      66
      Location:
      Fareham
      Ratings:
      +323
      :smashin: Brute force and ignorance with those rods might be your best bet. How destructive are you prepared to be?

      Looks great! Is that a Neato robot hoover? Wouldn't be without mine now.
       
    5. MIghtyG

      MIghtyG
      Well-known Member

      Joined:
      Mar 1, 2008
      Messages:
      2,973
      Products Owned:
      0
      Products Wanted:
      0
      Trophy Points:
      136
      Ratings:
      +939
      Thats what I was thinking, im just a little worried about trying to poke through the insulation and the rod coming out the other side of the foam rather than skimming down between the plaster board and the foam.

      I think I need something wide and narrow (duck bill type shape) to run in front of the rods - being wide and narrow it should keep the rod between the plaster board and the foam and it will leave the rod to do the damage to the foam but all in the right place at least......I hope!

      Regarding destruction wise, my initial plan was to cut out a channel in the plaster board and foam, stick in a small conduit and then run the cables, then plaster over, sand and paint. But having just finished taking down a room full of coving, plastering holes, sanding and painting.......not sure I have it in me again so soon! :)

      And yes, a Neato Botvac, absolutely loved the thing until I changed furniture in the room. Now the clearance between the top of the Botvac and the TV unit is such that it can manage to wedge itself in below it and get stuck so it cant back out! Need to come up with something to sort that one out, I can use a magnet strip infront of that TV unit but I have a side board the exact same height with no rug to hide a magnet strip.
       
    6. nickolp1974

      nickolp1974
      Active Member

      Joined:
      Sep 26, 2010
      Messages:
      155
      Products Owned:
      0
      Products Wanted:
      0
      Trophy Points:
      31
      Location:
      Lincoln
      Ratings:
      +35
      If there is any room between foilboard and Plaster board you could use a bit of 30mm bit of trim such as this Wickes PVCu White Cloaking Profile 30 x 2500mm | Wickes.co.uk
      Just cut a slot top and bottom, tape on wire and go fishing! If you are near a window installers they would probably give you a couple of meters.
      To add the trim is usually 6mm thick.
       
    7. mcbainne

      mcbainne
      Active Member

      Joined:
      Dec 16, 2016
      Messages:
      158
      Products Owned:
      1
      Products Wanted:
      0
      Trophy Points:
      46
      Location:
      Aberdeenshire
      Ratings:
      +101
      Looking at the first pic there's the twin and earth for the socket running down the RHS of the framing behind the TV. I'd cut a single gang hole in the top location and try and locate that. Then disconnect the socket and pull the cable back to the top location with a draw wire attached then pull the T&E back down with the new cables taped on. It'll probably be tight but hopefully there is the space to get them down
       
      • Like Like x 1
      • Thanks Thanks x 1
      • List
    8. MIghtyG

      MIghtyG
      Well-known Member

      Joined:
      Mar 1, 2008
      Messages:
      2,973
      Products Owned:
      0
      Products Wanted:
      0
      Trophy Points:
      136
      Ratings:
      +939
      Good spot, I think there is power running up there for my ceiling light and smoke detector. Will have a bash at trying to find it without electrocuting myself and see if I have enough space to pull a few extra cables along with it.
       
    9. mcbainne

      mcbainne
      Active Member

      Joined:
      Dec 16, 2016
      Messages:
      158
      Products Owned:
      1
      Products Wanted:
      0
      Trophy Points:
      46
      Location:
      Aberdeenshire
      Ratings:
      +101
      Just make sure you pull in a decent draw wire that's not going to snap, good luck :smashin:
       
    10. Killbill118

      Killbill118
      Standard Member

      Joined:
      May 12, 2017
      Messages:
      19
      Products Owned:
      1
      Products Wanted:
      2
      Trophy Points:
      6
      Location:
      Birmingham, United Kingdom
      Ratings:
      +4
    11. MIghtyG

      MIghtyG
      Well-known Member

      Joined:
      Mar 1, 2008
      Messages:
      2,973
      Products Owned:
      0
      Products Wanted:
      0
      Trophy Points:
      136
      Ratings:
      +939
      Well, got half a job done so far at least:

      upload_2018-7-30_10-42-44.png

      Seriously tempted to just go for a short section of D-Line trunking......I need to buy some to hide some cables along the skirting board anyway, might just pick some up and see if it annoys me too much.
       
    12. mcbainne

      mcbainne
      Active Member

      Joined:
      Dec 16, 2016
      Messages:
      158
      Products Owned:
      1
      Products Wanted:
      0
      Trophy Points:
      46
      Location:
      Aberdeenshire
      Ratings:
      +101
      Move the centre speaker to the top of the unit and it would hide them even more ;)
       
    13. MIghtyG

      MIghtyG
      Well-known Member

      Joined:
      Mar 1, 2008
      Messages:
      2,973
      Products Owned:
      0
      Products Wanted:
      0
      Trophy Points:
      136
      Ratings:
      +939
      Yeah thats what I was thinking, the centre speaker only went into the unit as the TV was sat ontop. Might move that and that will free up some space for a blu-ray player or something in the unit.

      Its an Ikea unit so would be nice and easy to get a new door on the front of it to hide stuff inside :)
       
    14. mcbainne

      mcbainne
      Active Member

      Joined:
      Dec 16, 2016
      Messages:
      158
      Products Owned:
      1
      Products Wanted:
      0
      Trophy Points:
      46
      Location:
      Aberdeenshire
      Ratings:
      +101
      You might find an improvement in the sound as well with the speaker higher up and closer to the TV so win win
       
    15. Ronski

      Ronski
      Well-known Member

      Joined:
      Dec 14, 2006
      Messages:
      2,199
      Products Owned:
      0
      Products Wanted:
      0
      Trophy Points:
      116
      Location:
      Sunny part of Kent
      Ratings:
      +741
      Surely just a case of making the TV unit slightly higher, can you fit some felt pads to the legs, it might be enough?
       

    Share This Page

    Loading...
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice