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Energy-efficient window technology

Outdated windows are often a leading culprit in energy waste and tenant discomfort. From low-e attachments to high efficiency replacements, check out the latest in energy-efficient windows technology, and get to know the most cost-effective, energy-saving solutions for your commercial building.

Secondary Glazing Systems

Secondary glazing systems (SGS) are designed for use in existing commercial office, historic, educational, and government buildings with low-performance windows. SGS are window attachments that attach to the interior of an existing window, creating a insulating barrier.

Window Replacement

Many energy retrofits focus on lighting, boilers or motors, but the full efficiency gains and energy savings from these retrofit measures cannot be realized with inefficient windows. Inefficient windows account for 25% of a typical building's heat load in cool climates and as much as 50% of the cooling load in warm climates.

Featured Resources

Alley 24

Case Study

Located in Seattle, Washington’s burgeoning South Lake Union neighborhood, Alley24 is one of the nation’s first LEED-certified mixed-use projects

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