Electrics before or after insulation?

Hi just as the title says…My question is…
should I be doing electrics before insulation on walls and roof? Or after insulation but before thermo liner?

I will be using recycled plastic bottle wool and xps foam board, deadening is already laid and thermo liner ready too ( for after the insulation is done)

Thanks for your help in advance


I don’t want to have to tear into walls to work on wiring, so I run my wires outside the walls and hide them with easily removable trim.


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