The issue I’m having is this. The old boxes were screwed directly into what appears to be a 2x4 that I assume is mounted to the joists.
I basically have two options for mounting a new box. One of those old work tension bar boxes (my first choice) or a box that mounts on the joist.
The problem I have is that either way it looks like I need to cut the 2x4. I can only access the 2x4 through the hole so I’m not sure that I can get the entire thing out. If I can, I can use a tension bar mount. If I can’t, I’d have to do the bracket mount box directly to the joist.
Im just looking for any advice or opinions before I cut the 2x4. I really don’t want to tear the roof material up.