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Fixing a back-box onto fresh air (well, nearly)


ToughButterCup

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The design of our (ICF -Durisol) house means that a small section of the insulated front wall is inside the house - inside the heated envelope.

And why wouldn't we need to fix a back-box into the insulated part of the wall ? ....?,

I mean come on this is our build, not anyone sensible, or someone with half a brain ...

20191028_102958.thumb.jpg.ec5ae12db0a4f9e944568294032e913a.jpg

 

As you can see, the backbox is (in this case too small - 47mm one on order) sitting on the insulation.

 

This is where the back box sits in the wall

 

20191028_104952.thumb.jpg.388662a036924eb65bec4af92d703bef.jpg

 

There's just over 200 mm of insulation and then concrete behind that.

  • Its naughty to put electrics next to insulation innit?
  • Do I have to dig out all the insulation and plug the gap with wood or something?
  • Or can I just get a jinormous screw then drill through to the concrete and fix it in that?

Or just knock the house down and start again.....

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37 minutes ago, PeterW said:

Glue it to the wall then foam it in ... 

oooooowwwww ! ? assseasy innit !

 

34 minutes ago, Construction Channel said:

Agreed. In the past we've made a batten that screws into the faceplate holes. Screw that batten to the wall either side to keep things flush and level. Then foam it

Foam ... I like that.

 

50 minutes ago, JSHarris said:

I'd be inclined to stick a bit of thin ply to the foam [...]

 

And I've even got the bubblegum errrr,     glue 

 

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