Materials were temporarily stored just west of the main terminal building. The required rotating tower cranes were also installed there. The auxiliary framework set up on the roof of the second level gives an impression of how high the future check-in hall would be. Eighteen-meter-tall steel towers loomed over the building’s future check-in area. Construction workers assembled the parts of a roof section on them. For each one, steel elements were joined into a kind of three-dimensional framework roughly 4.5 meters tall. First, workers connected the steel supporting structures and sealed the sections at the top. To eliminate the need for suspended work platforms at a later stage, they integrated required equipment and features during this stage of the work, including cable conduits, sprinklers, and the ventilation system. Finally, they attached a grated platform for subsequent maintenance work.