SHGC
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Choosing Window Glazing
How to specify the right U-factor and SHGC for your climate zone
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Designing a House for a Hot Climate
Pay attention to roof details, window specifications, and duct system design
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Windows in Hot Climates Need Shading
If homeowners keep the blinds down all day long, that's evidence that the window shouldn't be there
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What Do Windows Do?
Windows have a great many functions—and a few quirks
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A Quantitative Look at Solar Heat Gain
A deep dive into passive solar heating principles
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How to Order Windows
Things to consider before you choose windows for your new home
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Lab Hopes to Develop Paint-On Window Coating
Scientists are working to develop a simple-to-apply coating that would offer a cheaper alternative to window replacement or professionally applied films
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Comparing North American Window Frames to European Frames
Thin North American window frames with a high U-factor sometimes perform about the same as European window frames with a lower U-factor
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Presumptive European Superiority Syndrome
Triple-glazed windows from Europe don’t always outperform triple-glazed windows from our side of the Atlantic Ocean
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PHIUS Posts Window Data
The Certified Data for Windows program includes recommendations for different climates zones for those seeking Passive House certification