Originally Posted by dougmcarthur0
I don't know how I could tell whether there's a heating duct running. There's an exchange on the floor to the left of the door. How would I know if heating duct is present?
I guess the less invasive way might be to take a prope of some sort like a screwdriver or awl with an insulated handle, for the slight chance of hitting wire, and poke it through the bottom to see if you hit an obstruction.
If it appears to have been repaired before, I think I might take a piece out to see if I could tell more about the situation. Previous moisture damage, 2x2 framing, with heavy duct work supports on framing spaced to far apart, framing not attached to ceiling joists, etc..
Since it that close to the door, and if that is the only place doing this, you might get by with re enforcing that area considering the opening and shutting of the door.