I am trying to mount ceiling fans in several rooms of a very old home. I have found pictures of other J boxes on this forum that appear very similar to mine so I attached someone else's picture so you have an idea of what the current J box and wiring looks like.
It was recommended by an electrician friend that I put a 2x4 between studs in the attic and screw the original box to the stud, rather than putting an entirely new J box in. His reasoning was that by the time I pull the wires out of the old Jbox and put them in the new one, I will likely have crumbled off some insulation and cause new problems. The old wires are very brittle.
That seems reasonable, however, there is no obvious way to mount the ceiling fan to the original Jbox, once it's been secured.
I came accross another forum post where someone showed a threaded nipple with an adapter plate, which I should be able mount the fan to. I've never seen any of these but it seems reasonable.
Does this appear to be the right way to do things? I just need to secure the backside of the Jbox to a 2x4 mounted to studs in the attic, and then thread the adapter plate in from the room underneath, and then mount fan to adapter plate?