Completing warm roof insulation?

[Walkbar]

BCO have decided to supervise my much needed flat roof renovation (replacing wall so this is the time) and have added it.

I've fitted a new pylwood deck and will be fixing Celotex TD4126 to it before roofer nephew does the honours.

My question concerns what to put in the facia and soffit area so as to prevent a cold bridge.
Should it go from the inner leaf, outer leaf to the facia?
Just thinking it should be as continuous a possible...seems a shame to buy all that expensive insulation and leave a gap in it.

Thanks for reading this.

 

[noseall]

The roof deck insulation carries across the whole of the walls below to the fascia whilst the cavity insulation should meet with the underside of the roof deck.

Or am i reading it wrong?

If you have already fitted the deck, how are you going to access this space anyhoo? It would do no harm, i guess to cram in and foam up the void directly behind the fascia if you have access.

 

[Walkbar]

The roof deck insulation carries across the whole of the walls below to the fascia whilst the cavity insulation should meet with the underside of the roof deck.

Or am i reading it wrong?

If you have already fitted the deck, how are you going to access this space anyhoo? It would do no harm, i guess to cram in and foam up the void directly behind the fascia if you have access.

You're reading it right.
Facia not on yet and took the precaution of cutting to size but not fixing the front of the deck until I could get some advice, so thanks for that.
The cavity (not much because it's all patio door and window) is empty.
I could wedge some spare Kingspan I've got in behind the facia and across the top of the cavity.
Would it be best right between the inner leaf and and the roof deck in that case or the outer leaf?