This has been bugging me for a long time now. I mean 4 WTC was completed in 2013 and 1 WTC in 2014 yet they haven't washed the glass once. You can still tell where the construction elevators were because the glass is cleaner. For being such a hugely important site, I don't understand how they've let this go on. The building I work in cleans the glass every 4-6 months at the worst.
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Originally Posted by NewYorker2009
Yeah the windows are filthy up close, not exactly how a $4 Billion Tower should look. The original Towers had a much better window washing system but that's mainly due to the difference in design...
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The twins used an automated system that fit into tracks and ran up and down the tower cleaning one complete face per week (thus the entire tower got a bath in 1 month).
The new tower suspends people in a basket off the side and it takes a lot more time to clean (plus there are a lot more windows).
I'm glad to see glass rising up 3 WTC but I know we'll be able to mark the installation progress via the accumulated dirt for years to come!