currently gutting my mc 12 and was planning on using spray foam insulation but do you run wires first then spray foam?? also where can you get it done around Ohio?
In my bus, I buried the 110 lines to the air conditioners, and one to the front above the driver for future TV or other object. I also buried the 12v lines from the vent fans to the center of the roof. I will have a shallow wire run down the center of the bus and down the sides for the rest. Can't help you for a contractor in OH though. Good luck!
My Dina was spray foamed at the factory so I didn't have the choice of running wires through the foam. They also spot welded galvanized sheet metal on the insides of the walls.
What I did for a lot of my wiring was to create about a half inch deep tunnel in the center of the ceiling. I will make those panels removable in case I need to repair any wiring later. Other wiring is going through the bottoms of luggage racks/cabinets in the front passenger area and through the basement bays and up into the bathroom walls and such.
I have 3 roof airs, 2 Fantastic vents, TV antenna, overhead lights buried in the ceiling foam. My electrical center is behind the drivers seat, and everything else runs down the outside of the wall on the lower left side so I can get to it (which was needed a couple of times). The wall covering just hangs over it so I can just peal it back for access. I spent alot of time engineering my systems to be easily accessible for maintenance or modification. As compared to sticks and staples that just buries everything with no regard to future work having to be done. Highly recommend you keep as much accessible-whether it be your electrical, plumbing, etc. since you're the one that is working on it. Good Luck, TomC
There is a cheap plastic conduit/tubing that you can put your wires in befor you spray. If you need to repair wires you can pull them into the conduit. As often as wires fail I don't think I will go to the trouble but it sure looked good when he did it.
John