Mr. Cinnamon is an Associate Principal with the firm of Wiss, Janney Elstner (WJE) in the Chicago, Illinois, USA office. His expertise lies in the design and analysis of exterior enclosures with an emphasis on glass, curtain walls, and fenestration systems and is a licensed Architect in the states of Illinois, Iowa, and Massachusetts. Mr. Cinnamon has written numerous articles on the inspection, repair/restoration, and replacement of window and facade systems. He has also presented seminars domestically and internationally on fenestration related topics including typical window problems, testing and repair of window and curtain wall systems, and typical glass failures. Mr. Cinnamon currently serves as the Vice Chair of the Board of Directors of the National Fenestration Rating Council.