Wireing through metal roof and wiring code my personal preference is to not put holes in roofs if possible.
How to run wires through roof.
Additionally if you ever need to redo the roof it will be a pain to deal with the wires that are now in the way.
First drill holes in the side of the box for cables big enough to fit the threaded end of the cable gland make sure to leave room for future cables.
This is the least favorable option as it is not reversible.
Better to come out of wall then go up to the roof.
Normally wiring not accessible does not need to be in conduit.
In this video we install a roof mounted wiring box with waterproof cable glands.
This option is quite self explanatory where a hole is simply drilled through the outer roof skin and wires passed through a rubber grommet into the roof cavity and fed down into the vehicle.
That way water can not stand around the penetration and eventually work its way through.
The installer ran the wires without properly sealing them and without leaving an option to add future wires.
You can seal it but it s always going to be a weak spot.
If you run the conduit cables over the side of the roof or down over the gutter that seems to be pretty ugly.
If the sites that you want to run wire to are on the outside of the house you should not need to drill a new hole.
I am a radio amateur and want to run an antenna cable through my house s tiled roof up by the chimney length of cable run is important and running it down over the tiles over the gutter then up and in through the soffit is too long and there s no way to fix the cable on the 5m run down the tiles.
As soon as you have a hole you are providing a path for water.
How do you keep wires hidden in your rv.
The next step is to run the solar or antenna cables into the rv through the new access hole.
I guess i m not passing it through joists it s going over them so i could argue the case it came to it not that i want to argue with the assessor but y know.
Run the cables through the roof access.
Run the conduit over the edge and bring it in through the gable end or eave.
The best way is to go around the roof not through it.
It seems you would need a pretty large roof penetration to run the conduit or cables directly through the roof.
Thanks all it s a little confoosing.
Please refer to these above options as a guide only.
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.
Drilling through the roof.