I know that there has been a bit of dissatisfaction expressed here over the years about most residential towers outside of Toronto being constructed as the standard formed-in-place or prefab concrete.
There's a reason: they're bullet proof and last forever. Low maintenance costs. Is glass and other "thin" curtain wall constructions more attractive? Certainly.
I've been told stories though for 5 or 7 years now about how many of them don't last. There is a good article by the CBC on the issue. A good read:
http://www.cbc.ca/news/canada/toronto/story/2011/11/13/tor-glass-walled-condos.html
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