Clerestory
With the roof decking now in place, light from the clerestory (vertical skylight) is now evident.

 

The 4th floor of Roebling Lofts will be an extraordinary place to live, as is becoming evident in this construction photo. Most of these units will be two bedroom. The steel trusses will be exposed, and every unit will get light from these clerestory windows, with 16-24′ ceilings.
4th floor windows
Here you can see the main floor windows, plus the clerestory, which will add light to the center and back of each unit.