If you must fish wires through exterior walls the best tip is to avoid spinning the flex bit until you make solid contact with the wood you plan to.
Fishing wire through exterior wall with insulation.
You can push the wire leader with the cable attached toward the sheetrock or the side with the opening.
If the wall contains insulation try to fish the wire between the outer paper or plastic cover and the wall.
Then using short pulling motions pull the leader magnet right through the insulation to the opening.
Hold the paddle magnet against the wall and move it around a little until it latches onto the leader magnet.
Now the next challenge is going to be fishing wire down an exterior wall to where i need the jack to be.
Learn how with this video.
Run electrical cable through walls and across ceilings without tearing them apart.
I had the coax cable fished from the basement up through an exterior wall complete with fiberglass insulation in less than a minute.
I know i m going to have to deal with insulation but i ve also heard of firestops horizontal wood boards between the wall studs.
The real key is knowing what insulation you have in your walls and if you need to hire a professional finding an electrician who is experienced working with that material.
While handling fiberglass insulation wear gloves eye protection and a mask that covers your mouth and nose.
Keep the fish tape against the inner edge of the drywall and out of the insulation as you feed it toward the upper hole.
5 attach the wiring in the 3 by 5 inch hole to the end of the fish tape.
For more in depth informatino about running fis.
The best advice for fishing wires through insulation is avoid it if you can the potential is always there to damage the vapor barrier or bunch up insulation leaving cold spots in the wall.
If there is no cover press the wire against a stud and use it as a guide.
Finally i stuck a crowbar in my wallet and bought this fish tape.
Fishing wires in insulated walls now that you know no matter what insulation you have in most cases you can still work the wiring through the existing insulation in the walls.
Extend the blade of the fish tape until it is visible in the wall box opening ideally you want the end of the fish tape to extend out through the hole you cut in the drywall.
As they say in australia no dramas.