For all those people bitching about sunlight and cooling costs--get a clue. Virtually all skyscrapers built these days are predominately glass enclosures. The glass will surely be reflective, and it will both lower cooling costs and avoid the bright sunlight problem.
It's nevertheless less reflective than a solid opaque wall - OK reflective isn't the right word here.
I work in a glass building, a lot of light enters, surfaces in the building will absorb the light turning it into heat.
It looks cool and all, I can't imagine what it would feel like if the air conditioning broke down.><
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I have been to malls with glass tops ... well on days when the sun is shining full blast, it's a feel the heat a little even with the air conditioning up and running.
It will never be as efficient as having a solid opaque overhead, that reflects and absorbs (while being a pretty good insulator) the energy, keeping it away from the inside.
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