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The reason most folks inquire about thick glass windows is that they’re likely searching for information about options for better sound control. Generally speaking, the window industry has done a good job educating people about insulated double-pane glass windows. However, very few people know the importance of their glass thickness.
What’s surprising to us here at Ringer Windows is how little attention and importance that other window companies give to thick glass windows. Glass thickness is rarely mentioned, or even understood, with respects to most professional window sales people. The truth is, once double-pane glass is installed into a window, it’s visually impossible to detect the thickness of the glass.
When you think about it, glass is the biggest and most important component in ANY window. In the real world of “what really matters” with defining “better” windows, the thickness of each pane of glass is truly one of the top-four most important things to consider when thoroughly evaluating thick glass windows.
There are five basic glass thicknesses used in modern American window systems. They range from 2.2mm to 5.9mm thick. Please refer to the chart on this page.
Most window manufacturers adhere to minimal engineering requirements when selecting the thickness of glass that’s installed in their windows. In general, most builder grade residential windows are manufactured with the thinnest and least expensive “single strength glass”.
It should come as no surprise that “builder-grade” products of any kind always seek the lowest possible costing. The “lowest cost” and “lowest quality” is what really defines “builder-grade”. Considering that most builder-grade windows are usually shipped hundreds of miles as well, it costs the manufacturer less to ship lighter windows. Low cost is their objective, not quality and performance. What do you want in your house?