The Construction Specifier, May 2014, by Stanley Yee.
http://www.constructionspecifier.com/must-reads/meeting-efficiency-codes-without-compromising-design/

"Creating an effectively insulated envelope is necessary for buildings to meet the latest demands of ever-tightening energy codes. Innovative use of high-performance insulation technologies enables architects to achieve improved insulation performance using common building techniques without sacrificing aesthetics."