New build timber framed problem | Page 4 | on ElectriciansForums
Guest viewing is limited

Discuss New build timber framed problem in the UK Electrical Forum area at ElectriciansForums.net

Joined
Jun 6, 2010
Messages
127
Reaction score
12
Hi everyone,

Thought I'd post here to see if any of you have wired new builds single storey, no loft with foil back insulation.

Its a high spec new build - downlights, data cables, speakers wires etc

I have attached a pic of the ceiling which has just been finished.

The problems i've got is there is barely a 40mm gap so drilling through will put me way out of regs. This stuff is stapled tight to ceiling so bit of a nightmare really.

Wondered what others have done to comply with regs.

Cheers, Jon

[ElectriciansForums.net] New build timber framed problem
 
@Lee42 the plate gives some nice mechanical protection, so you can bury at less than 50mm, but the other reason is the steel shores up the weak spot in the joist. Support strength comes from the top and bottom surface of a joist, the center doesn't do much to hold the rest up, so the steel replaces the lost strength is how I understand it.

Like I said though, never used them and my ideas are based on the wet toilet paper between my ears, not fancy evidence or proof. :)
 
You will not need them to support the notch as looking at the picture they are not structurl joists. They look like 2 x 1 that have been nailed on over the top of the insulation so when plasterboarding they have something to screw to.
My main concern would be whoever is plasterboarding accidently screws through a cable. Which is why I would put plates over the notches.

Hope that helps
 
If they won't batten the ceiling down then they can't have recessed lights or speakers, it's pretty simple really

I agree on the speakers but there is recessed lights on the market that will fit in there.
The light in the picture i posted is only 25mm deep so once u add the depth of the plasterboard u will have enough room
 
I agree on the speakers but there is recessed lights on the market that will fit in there.
The light in the picture i posted is only 25mm deep so once u add the depth of the plasterboard u will have enough room
This light fitting is all well and good but the driver needs to go somewhere and not in contact/surrounded by insulation.
 
Hi everyone,

Thought I'd post here to see if any of you have wired new builds single storey, no loft with foil back insulation.

Its a high spec new build - downlights, data cables, speakers wires etc

I have attached a pic of the ceiling which has just been finished.

The problems i've got is there is barely a 40mm gap so drilling through will put me way out of regs. This stuff is stapled tight to ceiling so bit of a nightmare really.

Wondered what others have done to comply with regs.

Cheers, Jon

View attachment 36413
Before drilling any pre-fabricated roofing joists I'd talk to the manufacturer first because this might seriously weaken the structure. In my opinion there is always an opportunity to install cables at the lowest apex where no-one should be in a position to damage them and without drilling the structure.
 

Reply to New build timber framed problem in the UK Electrical Forum area at ElectriciansForums.net

News and Offers from Sponsors

  • Sticky
  • Article
Wicked I've just actually looked through it and it's very smart. Some good stuff in it. There's a tile association company that do a magazine...
Replies
2
Views
278
  • Article
OFFICIAL SPONSORS These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then...
Replies
0
Views
270
  • Article
Hi everyone, Another weekend, another sale! Get ready for colder days with Haverland Radiators, combining efficiency with modern design. Keep...
Replies
0
Views
351

Similar threads

  • Question
I'm familiar with many domestic extractor fans which are primarily class 2 (double insulated) and consequently are not required to be earthed...
Replies
13
Views
2K
  • Question
By retired electrician, I mean that I have retained my ticket but no longer do installation work. Thanks for the clarification. I missed that it...
Replies
2
Views
444

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top