TKR Building in Soel Korea. Architect: Frank Barkow
Found in The Plan Magazine
image - the article where I found the image is titled “grafitti, by Herzog & deMuron” - the site also has a section that is called “surfaces” - http://www.eikongraphia.com/?p=1050
I found an article on perforated metal, the architectural qualities you can get from perf metal, including phenomena resulting from multiple layers of metal skins, worth skimming- http://www.architectureweek.com/2006/0920/building_1-1.html