Dual Pane Window Spacers

The panes of glass in an insulating unit must be kept apart at the appropriate distance by spacers. In addition to keeping the glass panes separated, the spacer system serves a number of other functions:

• Accommodate stress induced by thermal expansion and pressure differences;

• Provides a moisture barrier that prevents passage of water or water vapor that would fog the unit;

• Provides a gas-tight seal that prevents the loss of any special low-conductance gas in the air space;

• Creates an insulating barrier that reduces the formation of interior condensation at the edge 

The standard application for insulating glass units is the use of metal spacers and sealants. These spacers, typically aluminum, also contain a desiccant that absorbs residual moisture. The spacer is sealed to the two glass layers with organic sealants that provide structural support and act as a moisture barrier.

In a dual pane system, a primary sealant, typically butyl, seals the spacer to the glass to prevent moisture migration and gas loss, and a secondary backing sealant, often silicone, provides structural strength.

New technology in dual pane window spacers has emerged including improvements to the structural performance and long-term-durability of improved metal and foam spacers.

When you get replacement window glass from NU-VIEW Glass Inc., you can be sure that your windows are manufactured to the highest of industry standards. Call us for a free quote for home window glass repair or replacement at 623-215-7125.