Garage conversion - air gap and electrics.

[mushymat]

Hey all.

I’m in the middle of a diy garage conversion. At the moment the stud walls up and I’m now thinking about electrics

Before I go further I will be asking an electrician to pop over/offer advice and perhaps quote on doing the more skilled parts of the job, but before I do this I’d like to educate myself on a couple of things first and hoping for advice.

The stud work has been built with ample air gap. There’s a small section where the air gap is about 20mm, but 90% of it there is 50-100mm. The plan is to fill the stud work with PIR and run insulated plasterboard over the top.

So the actual electrics…

Given the air gap would you choose pin the electrics to the brickwork behind the stud or run the electrics though the stud work?

And I’m planning on using plasterboard socket boxes,,, I’ve never used them before, but I’m assuming there’s not a reason not to on insulated plasterboard ?

Thanks all

 

[Adam_151]

If clipping the cables to the masonary behind keeps them clear of the insulation, and running them through the studs would not, then the former is the thing to do.

As to plasterboard boxes on insulated plasterboard, you'll find you'd struggle to open the clips, youd have to hack out the insulation. As this is a new job why are you wanting to use dry line boxes? fit noggins and metal knock out boxes and set them so that the front edge is a few mm back from the front face of the plasterboard pre-plastering (proud would seriously upset the plasterer and behind the rear edge would leave a gap into the wall - but given that you have 12.5mm to work with, you dont have to be too precise)