I have a basement that I would like to finish and install a drywall ceiling. And I would like that ceiling to hide the HVAC vents.
However, the vents already just (by an inch or so) go over my head. If I put drywall around them, the ceiling will be short, which is especially a problem for the vents in the center of the room (less so for those by the wall)
Currently the vents hang from the floor joists by 4 inches.
Can I secure the vents directly to the floor joists or have them hang by only an inch? Is this safe to do?