| Location | Cannon Design, 225 N Michigan, Suite 1100, Chicago |
Learning Objectives:
Review basics of glass properties and fabrication methods
Identify glass types and associated strengths
Understand standards and proper specification of heat treated glass to avoid optical distortion issues
Discuss how surface damage affects glass strength
Glass is a highly visible and highly variable part of the built environment. The performance and aesthetics of the glass can greatly affect the perception of the viewer as well as the user. This presentation will present two case studies involving the structural performance and optical distortion of glazing. The first will focus on a research project in which damaged glass samples were removed from a building as part of an ongoing project. Locations of the surface blemishes were documented and the glass was tested to failure to determine its strength. The second will give an overview of the fabrication process and characteristics of heat-treated glass and discuss the causes, approaches to proper identification, testing methods, and standards associated with optical roller wave distortion.
Presenter: Anthony Cinnamon
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 inspection and investigation of windows, curtain walls, and exterior wall systems and is a licensed Architect in the states of Illinois and Iowa. Since joining WJE in 1995, his projects have included wood and aluminum window systems, curtain wall systems, glass failures and masonry and stone cladding systems. 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, glass and glazing failures, and testing and repair of window and curtain wall systems. Mr. Cinnamon is also a member of the National Fenestration Rating Council (NFRC) and is the Vice Chair of the Chicago Chapter of the Building Enclosure Council.
