What is a low-conductance spacer, and what is it made of?
A low-conductance spacer is an integral part of CertainTeeds Thermaflect Low “E” glazing system, helping the system to deliver the best R-value rating in its class. The low-conductance spacer is a new technology, an improved design of the strip of material that has been used for many years to separate the panes of glass in a multi-pane window. The original spacer material in the window industry was metal — usually aluminum. Unfortunately, these spacers conduct heat very well, so the edges of the glass would lose more heat than the center of the glass. This inequality of temperature often caused condensation to form on the inside of the window, and could actually lead to stress fractures in one or both glass panes. Low-conductance spacers are specially designed to enhance thermal performance. They reduce the conduction of heat from a windows interior pane to its exterior pane, resulting in an inside pane temperature up to 9 degrees warmer than the outside pane. That means low-conductan
