Which Reference method

[topquark]

I've had it once before Guitarist. They don't like the reflective foil being breached. If it's not spec'ed with aluminium foil for the joints then they prob won't be too worried, as you say though best to ask.

 

[Blacktail]

Sorry seem to be having problems posting and you have all got ahead of me!! , but reassuringly you seem to have come to same conclusion that ref method A is the way to go. And radials look like a better option. The insulation is over 100mm and so dont think there should be a problem but take on board what you are saying. Inspector is on site this pm so will get builder to ask.

Guitarist, sjm, topquark thanks for the input didn't think i would fall quite so heavily at the first fence in my design, hopefully not bother you all again!!

 

[pmcsparks]

Managed to get conduit laid in/under the concrete sub-floor at the last conservatory I did.
So method B60 worked for me. Ran two radials for sockets, tails run up in conduit to back-boxes.
Lighting was all in ceiling, clipped to joists and surrounded by insulation, so method 101 there.