Yes this should be corrected and it would be good to have the wiring and all the circuit connections inspected as well.
Attic wiring tips.
If you will need to fish wiring through a wall drill a hole through the wood plate in the attic only.
Junction boxes are basically standard electrical boxes that act as waypoints and connection centers for one or more circuits.
Find a live receptacle for the power source.
For the horizontal portion of the cable run this can involve drilling holes in the joists where the cable will pass.
The newer romex has improved insulation qualities with wiring such as 14 2 14 3 12 2 and 12 3 etc.
Determine the fan switch location.
While building codes usually allow junction boxes in attics the codes impose installation standards to prevent electrical fires and accidental shock.
As long as the wiring is newer romex type wiring and the circuit breaker is sized correctly there should be not problem with insulation.
Bring a work light and a flashlight with you if you attic has a light in it that is great but we still recommend bringing a flashlight in case mr.
The process of wiring an attic fan involves the power source and switch location wiring connections to the switch and wiring connections to the fan.
The attic wiring should be protected and secured to ceiling joists or other wood structural supports.
Location of power supply and switch.
When cutting through drywall from the interior of a room use a utility knife and cut carefully you don t want to drill through a hidden wire or the paper backing of the attic insulation.
Old knob and tube style wiring does however pose a problem with insulation.
Raul no this is not a standard practice and is most likely the result of improper installation of electrical attic wiring.
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.
And use semi rigid wiring fish tape to pull your wiring down to your outlet location.
You can avoid costly mistakes.