Description: Vacuum Insulated Glass (VIG) is an emerging technology that has been in commercial development for the last 20 to 30 years. A VIG unit is typically about 5/16 inch thick, yet provides an R-value two to three times the R-value of a typical dual-pane insulating glass unit. While some VIG technology has been commercially available since as early as 1996, its presence in the United States architectural market has been minimal. The presentation will include a brief history of VIG technology, describe the typical make-up of VIG and Hybrid VIG units, present thermal performance of available products, and describe considerations for evaluating various products available in the market, both for historic preservation applications and high-performance new construction. The presentation will use recent projects as case studies to introduce VIG technology, including where WJE participated in laboratory testing to evaluate performance. Learning Objectives: 1. Describe the components of Vacuum Insulated Glass (VIG) 2. Identify project types that might be suitable for consideration of VIG 3. Compare the difference in thermal performance between VIG units and insulating glass units 4. Explain appropriate industry standards that guide evaluation of VIG Presenter Bio: Tony Cinnamon is an Associate Principal at WJE in the firm’s Chicago, Illinois office. His expertise lies in the inspection and investigation of windows, curtain walls, and exterior wall systems. He is a licensed Architect in the states of Illinois, Iowa, and Massachusetts. Since joining WJE in 1995, his projects have included wood and aluminum window systems, curtain wall systems, glass failures and design review of building enclosures. Sarah Sinusas is an Associate Principal at WJE in the firm’s New Haven, Connecticut office. She is a Professional Engineer and has specialized in building envelope systems since beginning her career in 2008. She specializes in the evaluation and investigation of curtain wall and window assemblies. | 
