Running Wires Without Attic

When romex is run across rafters in an open unfinished attic it is my position that a raceway of some kind 1x3 s or even 2x4 s should first be attached across the affected rafters perhaps 3 to 4 above the joists then the wiring be stapled to the raceway.

Running wires without attic.

But if you have knob and tube running in an attic or exterior wall the space can not be insulated until the wiring is replaced. The actual install of recessed lights here https youtu be 5yc8aqnvqqg the long bit is actually used. Attach the wire or cable to a fish tape or coat hanger using electrical tape and feed it into the hole until it reaches the opening at the other end. If you re working from the attic you can drop a weighted string down wall cavity then attach the wire to the string and pull it through.

On a single story home or the the upper floor of a multiple story home this means accessing your attic to run wire. Totally hidden existing knob and tube wiring meets code and we have left it in place inside some interior walls. Run the wire or cable to its destination. Use thwn 2 14 gauge stranded wire if you get power from a 15 amp circuit or thwn 2 12 gauge stranded wire for a 20 amp circuit.