For over 60 years, the company has placed a high value on its employees as part of a long-standing commitment to product excellence and customer satisfaction. The company maintains its own distribution centers and a national field sales team.
For more information visit www. New low-e storm are designed to blend in with the existing architecture, are permanently mounted, and are available as fixed or operable models, such that you can maintain the operation of your existing window e. For more information on the benefits, performance, cost, installation guidance, and energy rating and labels, be sure to check out these resources:. When installing storm windows, ensure they have weatherstripping at all movable joints; are made of strong, durable materials; and have interlocking or overlapping joints.
See our do-it-yourself home energy savings project for step-by-step instructions for installing low-e storm windows. These properties can be measured and rated according to the following energy performance characteristics:.
The ability of glazing in a window, door, or skylight to transmit sunlight into a home can be measured and rated according to the following energy performance characteristics:. Review the state fact sheets or use the window selection tool for new construction or existing homes from the Efficient Windows Collaborative to determine the desired performance ratings for your climate. Subscribe to receive updates from Energy Saver, including new blogs, updated content, and seasonal energy saving tips for consumers and homeowners.
Energy Performance Testing, Certification, and Labeling. Heat Gain and Loss. Windows, doors, skylights can gain and lose heat through: Direct conduction and convection heat transfer through the glass or multi-layer glazing and framing Thermal radiation into a house and out of a house from room-temperature objects, such as exterior walls and windows, people, equipment, furniture, and interior walls The solar radiation into a house, which is converted to heat when absorbed by building surfaces Air leakage through and around them.
Geographically speaking, the Northern Zone covers most of the country and the Southern Zone is the smallest, but the North-Central and South-Central Zones cover some major population centers. The qualification criteria for windows are as follows: In the Northern Zone, there are prescriptive and equivalent energy performance criteria.
The prescriptive criteria require a U-factor of 0. With the equivalent energy performance criteria, products can be considered certified with the following performance: U-factor of 0. All other zones only have prescriptive criteria. In the North-Central Zone, the U-factor requirement is 0.
The South-Central Zone allows U-factors of 0. Windows qualified in the Southern Zone can have U-factors of 0. The qualification criteria for skylights are prescriptive only and are as follows: In the Northern Zone, skylights must have a U-factor of 0. In the North-Central Zone, skylights must have a U-factor of 0.
In the South-Central Zone, skylights must have a U-factor of 0. In the Southern Zone, skylights must have a U-factor of 0. Glazing level refers to the amount of glass in the door.
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