I have installed several bathroom vent fans in sheetrock ceiling, but
soon I will be doing one with a drop ceiling.
My question is does the fan still sit flush with the bottom of the
ceiling tile, or does is sit a couple inches above the tile in case
you had to change the tile if it got damaged, wet, etc? I would think
if you made it sit flush with the bottom, there's no way to remove the
tile, other than going through another tile and take apart the fan.