Originally Posted by New2Skool
Ok, I can check.
I don't like the chair rail.
It is in the way and would be much easily to insulate the wall with more access.
If it helps my Bus is a 99 3800 international, carpenter body.
I will have to slide around under it and check everything.
I'd suggest against it, as several people have said it could be structural. It can be used to ferry wiring and plumping easily and honestly you probably will not notice it as much of it will be covered up depending on how you wish to make your skoolies interior look.
the pocket created by the lower side wall actually makes it far easier to insulate. At worst you can slit 3 small lines to create a "bendable" area and slide the board insulation in. However if you go spray foam its moot as you can just angle the spray nozzle as needed.