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Reply #235: I guess it's possible there are vents. [View All]

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Make7 Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Aug-20-05 08:07 PM
Response to Reply #233
235. I guess it's possible there are vents.
Aesthetics concerns
____________________

Most mechanical floors require external vents or louvers for ventilation and heat rejection along most or all of their perimeter, precluding the use of glass windows. The resulting visible "dark bands" can disrupt the overall facade design especially if it is fully glass-clad. Different architectural styles approach this challenge in different ways.

In the Modern and International styles of the 60s and 70s where form follows function, the vents' presence is not seen as undesirable. Rather it emphasizes the functional layout of the building by dividing it neatly into equal blocks, mirroring the layout of the elevators and offices inside. This can be clearly seen on the World Trade Center twin towers and the Sears Tower.

picture
The former World Trade Center twin towers. The "dark bands" are vents for the mechanical floors.

http://en.wikipedia.org/wiki/Mechanical_penthouse

-Make7
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