Types of Glass for Windows

What Are the Most Energy-Efficient Types of Glass for Windows?

The energy efficiency of your home depends largely on the quality of your windows and doors. If you splurge on windows with a high insulation value now, you can save a significant amount of money in heating and cooling costs down the road. At Heritage Windows, we manufacture quality windows made with low-E glass for maximum energy efficiency. Here is a quick guide to help you choose the best types of glass for windows based on the unique characteristics of your home.

Glass Types

Standard windows have two or three clear panes of glass between the casements. The glass meets the minimum standards of the ASTM worldwide standards. They will have the lowest energy efficiency of any type of window.

Windows that feature low-E glass have been treated with an invisible metallic oxide coating that reflects heat without blocking out light.

Gas-filled windows fill the space between the window panes with an inert gas such as argon or krypton to increase insulation value.

Special coatings are also available to create more energy-efficient types of glass for windows. These include:

  • Heat absorbing tints
  • Insulated window glaze
  • Spectrally selective coatings

Factors that Affect Efficiency

There are a number of different factors that should be considered when selecting energy efficient windows.

  • Window orientation
  • Climate
  • Home design
  • Purpose of room

Based on this information, you may actually want to select different types of glass for windows in different rooms of the house. If you have a east- or west-facing kitchen, for instance, it may be necessary to select a window with a higher insulation value and a heat-absorbing tint. In a north-facing room that is primarily used to watch television, a window with a reflective coating may be a better choice. To view the many different styles of windows available at Heritage Windows, visit our photo gallery. Call 480-892-2600 to learn more about getting energy-efficient windows for your home.