Was this possibly a building with retrofitted ducting? As in when it was built it had boilers for heating only, and later the building was modified to have ducting for AC (so the ducting had to follow whatever non-straight lines were possible).
Anything’s possible, I’m guessing there are some pipes or somethingunderneath and whoever did the installing didn’t feel like trying to straighten it out with junk in the way.
Was this possibly a building with retrofitted ducting? As in when it was built it had boilers for heating only, and later the building was modified to have ducting for AC (so the ducting had to follow whatever non-straight lines were possible).
Anything’s possible, I’m guessing there are some pipes or somethingunderneath and whoever did the installing didn’t feel like trying to straighten it out with junk in the way.