Curtain wall is a much higher performing and energy efficient window system than a typical window wall system, so curtain walls are exempt from the 40% vision glass requirement.
While Tridel builds nice quality buildings most of their projects are plagued with questionable exterior cladding choices and spandrel use. This would have been a unique standout sophisticated-looking building if they would have simply chosen better contrasting colours rather than many shades of non-committal Toronto grey, but so far this is unique for all the wrong reasons.
It looks like an office building that ran out of the same exterior cladding, or reminds me of those awful plastic vertical window blinds with broken portions of slats out of position. It’s a mess.