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GLASS

Understanding Glass
 

Choosing the right insulated glass units for your new windows can be the difference in lowering your energy bills, improving thermal efficiency and increasing your BER rating. The more you know about the various technical elements, the more informed decision you make.


Insulated Glazed Units


Double or triple insulated glazed units (IGUs) are installed in new builds or as replacement glazing due to their thermal efficient characteristics. Multi-pane IGUs are made using different pane thicknesses, contain a range of cavity depths, and may have the cavity filled with an inert gas, all depending on the window specifications and performance requirements.

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Special Coatings


​IGUs can be treated with different coatings for different results. The use of coatings applied to the inner surface of a glass pane, can improve various properties. Solar control windows for example, can reduce the UV rays entering through the glazing to help keep your carpet, floors and pictures from fading in rooms that get the most light.


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U-Value


What is a U-value? The U-value describes how well a building element conducts heat. The lower the value, the better an insulator a material is.

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Low-E Coating


What is a Low-E Coating?  Low-E glass features a special coating on the window pane that reduces heat transfer, preventing heat from entering a home in warm climates or from leaving a home in cooler climates. Windows that feature Low-E coatings are far more efficient at reducing heat loss than non-coated windows.

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Gas-Filled Windows


Both noise reduction and thermal insulation can be greatly improved by filling the cavities between the glass panes with a low conductance gas like argon. This gas also offers significantly better thermal resistance than air, resulting in greater insulation and hugely improved energy efficiency

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Download the PDF files to learn more about the U Values of Glass
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