Energy Efficient Glass Packages

Take one of our already, far-superior replacement window, add an energy-efficient glass package, and what you have is an energy-efficient super-window!

Glass Options

In addition to saving you up to 30% on your energy costs, all of our glass packages are Energy StarĀ® qualified, which means your new replacement windows and patio doors will qualify for the government Energy Tax Credit.

Combine that with the beauty and style that is standard in all of our AlsideĀ® replacement windows and patio doors, and the choice is clear.

Click here to learn more about the Energy Tax Credit.

Low E Cross Section
What benefits can you expect from our glass packages?
  • Reduce unwanted heat gain from the sun’s solar radiation
  • Keep more cold/hot air from escaping through your windows
  • Reduce condensation around the window’s edge
  • Reduce UV rays which can fade furniture, carpets and curtains

There are 3 main features used to improve a window’s overall performance:

Insulating Argon Gas

Argon Gass

Argon gas is an inhert, colorless, odorless, nonflammible and nontoxic gas which is sealed in between the panes of a window to act as one more barrier which thermal energy must contend with. Fives times heavier than air, argon gas impedes the transfer of heat and cold through the window panes, leading to less heat gain and higher insulative properties, which makes for a more energy efficient window. In addition to lowering your energy bill, argon gas’s insulative properties also serve as a sound barrier helping to reduce outside noise.

Warm Edge Spacer Technology

All double- and triple-pane windows must use some type of spacer to separate the glass panes. Traditional spacer systems use aluminum which is a highly conductive material, and in the case of windows, leads to a very inefficient window.

The new Warm Edge Spacer technology uses a much less conductive material, which means that thermal energy passes less freely through the spacer, providing more energy efficiency.

In addition, since glass is constantly expanding and contracting, the new designs are engineered to be much more flexible than traditional spacer systems, allowing for the material to move with the glass, which helps prevent seal failures.

Reduced Interior Condensation
Condensation is caused when the humidity in your home’s warm air comes in contact with a cold surface. On windows with less efficient spacers, condensation starts at the edges (in the area of the spacer). This can damage wood, cause mold and mildew and a number of other problems over time.

Aluminum Spacer
Traditional Aluminum Spacer
Warm Edge Spacer
Warm Edge Spacer Technology

Reduced Heat Gain and Heat Loss
The less conductive material used in the new Warm Edge Spacer technology means that the outside temperature has less effect on the inside of your home because the heat and cold pass less freely through the spacer.

Aluminum Spacer
Traditional Aluminum Spacer
Warm Edge
Warm Edge Spacer Technology

Improved Insulated Glass Unit Life

All glass expands and contracts with the changes in the outside temperature, which puts pressure on the spacer. If the spacer is rigid, it will not move with the glass and instead will put stress on the sealant. Over time, this will cause loss of insulating gas that may be present between the panes and, ultimately, cause a seal failure.

Flexable Warm Edge SpacerThe material used in the new Warm Edge Spacer technology is flexible and designed to move with the glass which takes the stress off of the sealant. This prevents insulating gas inside from escaping and keeps air, moisture and other debris out, all of which prolong the life of your window’s insulating ability.

Solar-Control Low-E Glass

Low-e (low-emittance) glass has a thin coating of low-e material applied to the glass by the magnetic sputtered vacuum deposition process to ensure superior thermal performance.

This means you reduce energy costs in both summer and winter, as low-e glass helps keep unwanted heat and cold out, while its insulating properties help keep wanted heat and cold in.

  • Blocks direct solar heat year-around
  • Reduces solar heat gain
  • Reduces fading and degradation of fabrics caused by UV rays while allowing 88% as much visible light as clear glass.
  • Provides improved comfort in the winter
Improved InsulationImproved Insulating Properties
Reduce GainReduced Solar Heat Gain
Reduced UVReduced UV Rays While Maintaining Visibility