Running conduit for electrical wiring in a house is a huge waste of labor and material. PVC insulation and a nylon jacket is just fine for 2.5mm^2 (#14AWG) conductors, which is what 90% of the wiring in a house will be.
The only place that conduit is mandatory in residences in the US is Chicago.
Hell, most office buildouts in the US use very minimal amounts of conduit, most of the lightning and receptacle branch circuits are metal-clad cable (MC cable).
The only place that conduit is mandatory in residences in the US is Chicago.
Hell, most office buildouts in the US use very minimal amounts of conduit, most of the lightning and receptacle branch circuits are metal-clad cable (MC cable).