Properties and Performance of Vacuum Insulated Glazing

Sponsored by Pilkington North America

Learning Objectives:

  1. Describe the properties and performance of vacuum insulated glazing (VIG)
  2. Identify key terminology and concepts related to VIG
  3. Balance aesthetics and performance when selecting VIG products
  4. Identify the differences between vacuum insulated glazing VIG and other insulated glass technologies


1 GBCI CE Hour
As energy codes become more stringent; maximizing the energy efficiency of the glazing used in buildings becomes of greater importance. Glazing typically occupies 10 to 20% of a building’s exterior. Glazing loses more heat per square foot of an area in winter and gains more heat in summer than any other surface in a building. The U.S. Dept. of Energy estimates that energy lost through windows accounts for up to 50% of a building’s energy loss. It also estimates that the amount of energy lost through windows each year is $35 billion. Many new solutions have been proposed to reduce heat transfer through windows and one such technology which is currently growing in prominence is vacuum insulated glazing (VIG).