Current carrying wires are meant to support only their own weight.
Run a drop through attic.
Familiarize yourself with the footing situation.
When running pipes from a slab to an attic use an inside wall.
My cable tv is distributed through the attic so it seemed like a good solution to run my home network through there as well.
When adding or replacing wiring in finished walls most electricians will attempt to make the horizontal portion of the cable run in the unfinished attic or basement crawlspace areas looping the cable down or up through the wall cavity across the floor or ceiling joists then vertically through another stud cavity to the next wall box opening.
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.
Protect the wall with a thin piece of cardboard etc.
One reason you are not allowed to run wires across the bot tom of floor joists is to eliminate the temp tation to use the 12 2 wire for your kitchen gfi as a place to hang laundry.
And while loosely guiding the bit with one hand apply even pressure with the other holding the drill while running it.
For single floor homes with a basement the basement may be the best path.
Run the wire or cable to its destination.
If no boards or beams run horizontally between the wall studs the pipes can often be fed through the walls up to the attic.
Methods of proper attic electrical wiring raul no this is not a standard practice and is most likely the result of improper installation of electrical attic wiring.
The attic wiring should be protected and secured to ceiling joists or other wood structural supports.
Climb through the attic access using a ladder if necessary and look into the attic space.
This may involve fishing it through another wall cavity or out a small hole drilled in the floor.