I am just looking for advice on how much drywall to cut to move some wires.
There's a wire in the ceiling that has incoming power, and a switched leg for the light in the entry way, and another wire coming out of the wall (exterior light) that I'd like to put into a new 2-gang box on the wall. (I'll need to use a junction box high up on the wall because the wire is too short, and I think that is easier than getting in the attic to run a totally new wire.)
The lower wire goes to outlets in the room, which I need to get down into the crawlspace below. (From there I'm adding a new circuit, and relocating the switch to the wall in the foreground right. Will be nice to not have the entire front side of my house on one breaker..)
The exterior walls are 24" OC, and have either kraft-faced insulation or there is kraft paper used as vapour barrier.
How much of this wall should I open up to minimize disruption of the vapour barrier, insulation, and make it easier to repair later? Should I go right over to the stud, top-to-bottom (so I have a 24"x8' section) or should I cut holes and try to fish wires?
Edit: I cut over to the stud, got the wires run, put new vapour barrier and sealed it with acoustic caulk, and then screwed down the drywall. Having the wall all the way open definitely made running the wires way easier, and of course I had something to screw the drywall down to.