Is there code or best practice that says how to run conduit across walls near the roof when there's already other conduit in the way?
The back-story is that I'm putting together a plan for installing solar panels on my roof. I need to figure out how to route power from the panels to the breaker box, which is on the outside of my house.
There are two separate prime spots on the south facing roof of my house for two separate banks of panels. I don't have the ability to run the conduit inside of the attic because the roof of the house in that spot is converted garage; ceiling of the converted garage goes all the way to the roof. So I think I'm better off punching through the edge of the roof and coming out of the soffits and snaking conduit along the outside wall of the house to the breaker box. The trouble with that approach is that there's already other electrical conduit running across the top of the exterior walls where they meet the soffits. Can I just lay another run of conduit immediately below them? I don't really see conduit overlap any other conduit on houses so I'm wondering if this is some kind of code violation.
Thanks in advance. Any other thoughts on my approach would be appreciated as well.