glass house

The effectiveness of insulated glass can be expressed as an R-value. The higher the R-value, the greater is its resistance to heat transfer. A standard IGU consisting of clear uncoated panes of glass (or lites) with air in the cavity between the lites typically has an R-value of 0.35 K·m2/W.

Using US customary units, a rule of thumb in standard IGU construction is that each change in the component of the IGU results in an increase of 1 R-value to the efficiency of the unit. Adding argon gas increases the efficiency to about R-3. Using low emissivity glass on surface #2 will add another R-value. Properly designed triple glazed IGUs with low emissivity coatings on surfaces #2 and #4 and filled with argon gas in the cavities result in IG units with R-values as high as R-5. Certain vacuum insulated glass units (VIG) or multi-chambered IG units using coated plastic films result in R-values as high as R-12.5

Additional layers of glazing provide the opportunity for improved insulation. While the standard double glazing is most widely used, triple glazing is not uncommon, and quadruple glazing is produced for very cold environments such as Alaska.[11][12] Even quintuple glazing (four cavities, five panes) is available - with mid-pane insulation factors equivalent to walls

How do you understanding the Insulated glass?

Insulating glass units, or IGUs, are designed to keep homes warmer in the winter and cooler in the summer.

An insulating glass unit commonly consists of two (sometimes more) panes of glass separated by a spacer material and sealed together at the edge. The insulating airspace is filled with air or a noble gas, such as argon or krypton inside. Each glass pane has two surfaces, so typical double-paned IGUs have four surfaces.

The Intercept® spacer system by Gloriouis Future with "warm-edge" spacers, features a unique design that creates an effective thermal barrier at the edge of the IGU to help reduce conducted heat loss through the window, making them stronger and better at retaining insulating gas than many conventional designs.

Using argon or krypton in the air space between the two panes of glass provides further insulation, as these gases are denser than air and less likely to let heat conduct through the IGU. Combined with a low-e glass coating, these gases work to improve the window’s overall u-value, which is a measure of the heat transmission through a building part (such as a wall or window). The lower the u-value, the better the insulating glass unit.

When 90 percent argon gas fill is used in a low-e IGU instead of air, the window’s u-value can be improved by up to 16 percent. Similarly, krypton improves the u-value in a low-e IGU by up to 27 percent. However, using a noble gas instead of air in an IGU can add both time and cost to the window’s construction.

Bystronic automatic IGU Line produce irregular shape glass, triple IGU with online gas filling function. 

1.Insulation: Saves on heating and cooling by reducing air to air heat transfer.

2.Dew Condensation:There is no dew formation on the glass surface permitting a clear view even in the most humid conditions.

3.Sound Transmission: Using one of the panes as laminated glass will drastically reduce sound transmission. Using dissimilar thickness of glass panes will alsohelp combat noise. Replacing air with suitable gas will also reduce sound transfer.

4.Comfort : It offers increased personal comfort even when seated next to the glazing as the temperature of the inner pane is close to room temperature maintained. 

1. 10 years manufacture and export experience on glass.
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