If you have an existing drywall ceiling however or you plan to finish out the ceiling with drywall you must make.
Run wire above ceiling joist no attic.
If there is any attic space at all or you get lucky with the joist bays you will likely be able to fish a.
If you drill holes in the joists and run wire through those holes you ll be disturbing the insulation.
If the wires are within 7 of the attic access hole or along any attic flooring you ll need.
A 3 inch strip of drywall is enough to run receptacles around a room.
For vertical work you can cut about 6 inches below the wall ceiling joint drill through the top plat and then fish from the opening ion the ceiling.
The access is 14 because it s constrained by the 16 centers of the ceiling joists.
In addition your light fixture may require mounting to a ceiling joist or to two short blocks nailed.
In some cases you can run the electric wire beneath the ceiling joists.
You can then splice on a new piece of wire make sure it is the same wire gauge and run the new piece from the junction box back to the fixture box.
The actual install of recessed lights here https youtu be 5yc8aqnvqqg the long bit is actually used.