What is low-e glass_ _ vitro glass education center

Glass is one of the most popular and versatile building materials used today, due in part to its constantly improving solar and thermal performance. Remove system tray icons One way this performance is achieved is through the use of passive and solar control low-e coatings. Run application from system tray So, what is low-e glass? In this section, we provide you with an in-depth overview of coatings.

In order to understand coatings, it’s important to understand the solar energy spectrum or energy from the sun. System tray network icon Ultraviolet (UV) light, visible light and infrared (IR) light all occupy different parts of the solar spectrum – the differences between the three are determined by their wavelengths.


• Ultraviolet light, which is what causes interior materials such as fabrics and wall coverings to fade, has wavelengths of 310-380 nanometers when reporting glass performance.

• Infrared light (or heat energy) is transmitted as heat into a building, and begins at wavelengths of 780 nanometers. What’s a system tray Solar infrared is commonly referred to as short-wave infrared energy, while heat radiating off of warm objects has higher wavelengths than the sun and referred to as long-wave infrared.

Low-e coatings have been developed to minimize the amount of ultraviolet and infrared light that can pass through glass without compromising the amount of visible light that is transmitted.

When heat or light energy is absorbed by glass, it is either shifted away by moving air or re-radiated by the glass surface. Was ist vc system tray The ability of a material to radiate energy is known as emissivity. System tray icons In general, highly reflective materials have a low emissivity and dull darker colored materials have a high emissivity. Vc system tray vaio All materials, including windows, radiate heat in the form of long-wave, infrared energy depending on the emissivity and temperature of their surfaces. To system tray Radiant energy is one of the important ways heat transfer occurs with windows. What is system tray Reducing the emissivity of one or more of the window glass surfaces improves a window’s insulating properties. What is system tray in computer For example, uncoated glass has an emissivity of .84, while Vitro Architectural Glass’ (formerly PPG glass) solar control Solarban® 70XL glass has an emissivity of .02.

This is where low emissivity (or low-e glass) coatings come into play. System tray icons disappear windows 7 Low-e glass has a microscopically thin, transparent coating—it is much thinner than a human hair—that reflects long-wave infrared energy (or heat). Vc system tray has stopped working Some low-e’s also reflect significant amounts of short-wave solar infrared energy. C sharp system tray When the interior heat energy tries to escape to the colder outside during the winter, the low-e coating reflects the heat back to the inside, reducing the radiant heat loss through the glass. What is a system tray on a computer The reverse happens during the summer. What is the system tray To use a simple analogy, low-e glass works the same way as a thermos. What is the system tray in windows 7 A thermos has a silver lining, which reflects the temperature of the drink it contains. What is the system tray in windows The temperature is maintained because of the constant reflection that occurs, as well as the insulating benefits that the air space provides between the inner and outer shells of the thermos, similar to an insulating glass unit. System tray icons pixelated Since low-e glass is comprised of extremely thin layers of silver or other low emissivity materials, the same theory applies. Vc system tray is restarting The silver low-e coating reflects the interior temperatures back inside, keeping the room warm or cold.

There are actually two different types of low-e coatings: passive low-e coatings and solar control low-e coatings. What is a system tray Most passive low-e coatings are manufactured using the pyrolytic process where the coating is applied to the glass ribbon while it is being produced on the float line. How to remove icons from system tray The coating then “fuses” to the hot glass surface, creating a strong bond, or “hard-coat” that is very durable during fabrication. Where is the system tray Finally, the glass is cut into stock sheets of various sizes for shipment to fabricators. What is a system tray icon Passive low-e coatings are good for very cold climates because they allow some of the sun’s short-wave infrared energy to pass through and help heat the building during the winter, but still reflect the interior long-wave heat energy back inside.

Most solar control low-e coatings, such as what are used for Solarban® 70XL solar control glass, are manufactured using the MSVD process, where the coating is applied off-line to pre-cut glass in a vacuum chamber at room temperature. Vc system tray exe This coating, sometimes referred to as a “soft-coat,” needs to be sealed in an IG or laminated unit and has lower emissivity and superior solar control performance. System tray icon That being said, the best-performing solar control coatings are MSVD, ideal for mild to hot climates that are more dominated by air conditioning use in commercial buildings.

Low-e coatings are applied to the various surfaces of insulating glass units. What is the system tray on my computer In a standard double panel IG there are four potential coating surfaces to which they can be applied: the first (#1) surface faces outdoors, the second (#2) and third (#3) surfaces face each other inside the insulating glass unit and are separated by an airspace and an insulating spacer, while the fourth (#4) surface faces directly indoors.

Whether a low-e coating is considered passive or solar control, they offer improvements in performance numbers. Hide icons in system tray The following are used to measure the effectiveness of glass with low-e coatings:

• Solar Heat Gain Coefficient is the fraction of incident solar radiation admitted through a window, both directly transmitted and that is absorbed and re-radiated inward. Windows 7 system tray icons missing The lower a window’s solar heat gain coefficient, the less solar heat it transmits.

Here’s how the coatings measure up by minimizing the amount of ultra-violet and infrared light that can pass through glass without compromising the amount of visible light that is transmitted.

When thinking of windows, size, tint and other aesthetic qualities come to mind, but low-e coatings play an important role in the overall performance of a window and can significantly affect the overall heating, lighting, and cooling costs of a building.

For complete technical information about designing with low-e glass, read Vitro Archiectural Glass Technical Document TD-131. Hide system tray icons For any other glass questions, please contact Vitro glass or call 1-855-VTRO-GLS (1-855-887-6457).

IGUs reduce the likelihood of interior condensation forming by providing a thermal barrier between the inside and the outside. System tray icon changer The thermal barrier makes interior spaces more comfortable as it is easier to maintain a consistent indoor environment.

Due to the chemistry involved in the float glass process, all the colors of the rainbow are not possible. Vc system tray sony For example, orange, red, yellow and violet colored glasses cannot be produced using standard float technology.

PPG ships the majority of its glass products on reusable steel racks, which has reduced the amount of disposable packaging that accompanies architectural glass products by 65 percent.

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