On Sunday, August 24, 2014 10:03:29 AM UTC-4, Mayayana wrote:
If you're using the attic enough to be concerned then

the only right way to do it is to put the wire under the floor,

through the joists or stapled. Either way it should be

as close to mid-joist as possible. (It's apparently legal

to run it on top of the ceiling below, under the joists, but

that's not really safe. Someone might decide to hang

something from that ceiling.)

It's not legal, ie code compliant either. Nor can I imagine why
anyone would even think about running it between the bottom of
the joists and the ceiling sheetrock. There is no room for it there
to begin with.