It is exposed ceiling throughout, both on the "old" floors and on "hat" floors. FWIW I wasn't wearing a sweater and I ended up putting my winter coat on inside. I did not make the connection to the ceiling. There are still construction guys on every floor with lots of work going on everywhere.Tough to judge without seeing a more zoomed-out view of the ceiling. There's no reason it should be freezing if it is a middle floor (or any floor if engineered properly).