I have had an addtional 8 feet added to the back side of my house. I am replacing most of the wiring. There was new roof also installed in the oppisite direction of the old one. Now I have considerable space between the old roof (not attic area covered with shilgles) and the new roof. Is it OK to run wires on top of the old roof? If so must I use a running board or conduit? Thanks everyone... Always good helpful information here :thumbup:

I have rewired my kitchen, with three circuits. One is dedicated to the dishwasher, one is for the rear wall, one is for the front. Both of these have gfci's wired in series, and they all work fine. That is, until I introduce the lighting to them. I have come to learn that gfci's hate a shared neutral, no pigtail splices are allowed or the gfci's trip. So long as the series is unbroken with a switch, all is well. If I splice in a line for my overhead lights (3 way switches) or a line for my recessed sink lights, the circuit fails. I tried running the additional load directly from the gfci without a pigtail, in the secondary ports on the gfci, to no avail. I wired the lighting circiuts after the gfcis, this also made no difference. The gfci can sense a change in the resisitance before or after it, and I am trapped! I thought about removing all the gfcis except the one at the head end, but regardless, I believe that it will sense the neutral spice no matter how far from the gfci it is. I have dismantled the plant several times, the only successful circuit is one that has no common neutral. When I look online, I see gfcis wired with pigtails. But for some reason, I cannot do this. What am I doing wrong? The common thread between the two circuits is the lighting circuits that pigtail into the gfci series. Take them out, and the series works. Must I run a new circuit in to prevent this, or is there a way to have both together? Does a series of gfcis create this condition? Any help would be greatly appreciated!