Which method of insulation construction

[padstar]

I have the wall below to Insulate. It will sit behind some tall kitchen units housing cookers etc. I want to ply the wall before plasterboarding and skimming to give some good fixings for the kitchen and surface mounted electrics. In the rest of the house I have just bonded insulation to the external walls and boarded over. Is it safe to do the same here screwing through the ply and insulation back to the brickwork or should I batten it, Insulate between and then fix ply back to the battens?

 

[CACKATALLTRADES]

I can't really advise but are you sure those floor joists are beefy enough? They almost look like the sort of dimensions you'd see on decking.

 

[padstar]

Joists are 8x2's

 

[Notch7]

I would fix straight to wall with ply over.

foil tape on all joints to create vapour barrier.

 

[noseall]

I can't really advise but are you sure those floor joists are beefy enough? They almost look like the sort of dimensions you'd see on decking.

C24 8" x 2"s spanning what- 2.5metres? And you don't think they are beefy enough?

Specsavers?

 

[noseall]

I have the wall below to Insulate. It will sit behind some tall kitchen units housing cookers etc. I want to ply the wall before plasterboarding and skimming to give some good fixings for the kitchen and surface mounted electrics. In the rest of the house I have just bonded insulation to the external walls and boarded over. Is it safe to do the same here screwing through the ply and insulation back to the brickwork or should I batten it, Insulate between and then fix ply back to the battens?

I see you have two joists close to each other by the wall....

If space wasn't an issue, you could trap some PIR insulation behind some 2" x 2" (or 25mm batten) studs fixed to bottom joist up along side the first floor joists. You could furnish the studs with ply and run services behind.