On Apr 9, 9:42*pm, Ashton Crusher wrote:
On Tue, 9 Apr 2013 20:30:04 -0400, "TomR" wrote:
I need to add a couple of electrical circuits that will run across the floor
joists of an attic. *The attic is accessible, but it has a low ceiling
height, so the attic is not (and never will be) a usable living space.
There is no floor in the attic space -- just the open joists which are the
ceiling joists for the rooms below.

Since the new circuits will be running across (perpendicular to) the open
joists, is it okay to just run a nailing board across the top of the joists
and staple the new wiring on top of the nailing board? *That would be a lot
easier to do than drilling through the joists and running the wires through
the drilled holes.

Is the nailing board approach okay according to the NEC requirements?

I've seen lots of houses here in AZ where they just lay the wire on
top of the joists, no nailing board. *Just a few staples here and
there to hold the wire down.

well if you EVER want to store stuff up there, your far better off to
run the wires thru the joists...

when this home was built in 1950 they ran the wires on top of the
joists and when 3 years ater i decided to add a floor it was a big
hassle