I've always been puzzled by a few things in skyscrapers.
1. How is the glass installed on all glass high rises? On some high rises I see scaffolding going all the way up. On others there is no scaffolding so I assume it is installed from the inside of the building (i.e. Burj Dubai).
How is it installed so that you can't see things that are unappealing such as utilities that travel in between floors? Is the inside of that glass area frosted?
2. How are glass high rises insulated? Is there any insulation used in between floors at the exterior?
3. Where do those damn cranes go? If a crane sits at the center of a building like I see with the Philly Comcast tower, I assume there is a square void through the entire building??? How is the crane disassembled with the building all around it? Is that void then later blocked up and used as ventilation shaft???
Thanks