Wires running across joists in attic.
Run wire from basement to attic.
Rigid conduit with an outside diameter of 3 4 in and a fish tape long enough to reach through the buried pipe.
Run the wire or cable to its destination.
My home was built in 1941.
Wires and attic floorboards.
Whenever i do attic wiring i remove the insulation and staple it to the ceiling joist.
I recently installed a motion sensored security light in the back of my house.
The presumption is that the cable run will be looped from one box location down or up into a basement crawlspace or an attic then across floor joists before entering the stud cavity where the next box is located.
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.
Bring all of the wire up into the attic.
To run the wires inside rigid conduit you ll need a hacksaw a pipe bender capable of bending 1 2 in.
It seems no matter what you will have to open a couple walls but might not be as bad as you think.
The staple gun should be loaded with wire staples designed for holding the size and type of wire you are running.
Running wire from attic to basement.
If this meets code then i will be running attic wiring in this manner from now on.
Attach the wire or cable to a fish tape or coat hanger using electrical tape and feed it into the hole until it reaches the opening at the other end.
If you have a rigid line then you can open up one wall on second floor to drill to attic and first and then drill up to first from basement.
I was also under the impression that if wiring is in an attic space that it may need to be derated because it can get very hot up there.
You can get different sizes of pvc and you can run 2 3 lines in one run.
On the second floor run wires down the wall from the attic.
Rewiring 2nd floor from the attic.
On the first floor run wires up the wall from the basement.
While one person holds the flashlight the other person should use a staple gun to run the wire along the rafters from one entry hole to the other.
When necessary use existing ducts or pipe runs to get wires from the attic into the basement.
If you have access to your basement crawl space and attic you should be able to run wires without having to cut patch any drywall.