I want to add an outside electrical box but finding it difficult to find good info on the type of materials to use. My current thought is to use rigid PVC (sched-40) piping from the attic down to the box (also PVC) with GFCI and one of those "in-use covers" instead of just the flip up kind. Where the pipe reaches into the attic (there is a gap between vertical wall and the attic area), can the wire just come out or should I use an LB at the top for smoother 90 deg. bend ? Can I use the regular metal strapping to secure the pvc pipe ? Thanks.

I am wondering if what I want to do is to code and/or if I need to get a permit. In there master bedroom, there are two boxes on a wall for lights, but I do not want them. I want to take one of the boxes and basically put it on the other side of the same wall as the bathroom is right behind the box, so it would basically be very simply making a new box in the bathroom, then placing the existing wires in that box, and having a bathroom outlet, putting in a GFCI. One problem is that NONE of my house is grounded, any problem putting in the GFCI for code or for future owners. The other box is near a switch, so I was hoping I could just cap the wires in this box with the switch. I would essentially have two white wires, two black, then the switch wires. These wires from the box are currently capped correctly so it would just be moving the wires to the switch box. If that isn't to code, I suppose I could always get a bigger box and put a swich and an outlet there. To top it all off though, the switch and wires from the box I'm trying to move are on DIFFERENT breakers. Thanks much.