Product

Insulated glass is a prefabricated unit made of two or more glass panes, which have been separated by an air gap and edge-sealed together. This is also known as double glazed unit (DGU) or Insulated Glass unit (IGU). The two panes of glass are kept separated by a hollow aluminium tube spacer filled with a moisture absorbing material (desiccant) and is hermetically sealed to ensure that the air or gas in the cavity or hollow space between the two glass panes does not escape during hot climate, or outside air is not sucked in during winter or cold climate as a result of expansion & contraction of trapped dry air or gas due to change in temperature. This edge seal not only binds the individual sheets of glass together to maintain the mechanical strength of the joint but also protects the space between the glasses from outside influences. The air enclosed between the two glass panes is dried with a desiccant. Because of the low heat conductivity of the enclosed dry air between the glass panes, heat transmission through the window is drastically reduced. The sealants delay the moisture getting into the air space and the desiccant absorbs the moisture coming through the seal and during the manufacturing process. Insulated glass can also be made with three panes of glass & two air gapes. This type is known as triple glazed units & are used only in regions having extremely cold climate.

Characteristics of Insulating Glass :

Insulation : Saves on heating and cooling, by reducing air to air heat transfer. The enclosed layer of air makes the insulating capability about twice that of monolithic glass. Because of this, the load on the air conditioning is greatly reduced. The use of heat absorbing or heat reflective glass will further reduce the load on the cooling system.

Prevention of Dew Condensation : With monolithic glass, the temperature difference between the outside and inside of a room will often lead to condensation. However, the insulating effect of the air layer makes it difficult for the glass to become cold enough to have condensation on its surface giving a pleasant view through in rainy or high humidity climates.

Retards Sound Transmission : Insulating glass can significantly save on exterior noise pollution. The amount of sound reduction depends on the combination of the insulating glass. Using one of the panes as laminated glass will drastically reduce sound transmission. Using dissimilar thickness of glass panes will also help combat noise.

Pleasant Room Temperature : It offers increased personal comfort and aids in energy conservation. Because of its high insulation properties, the lack of cold or warm droughts leads to a pleasant internal environment even when seated close to a glass surface.

Strength : DGU glass will marginally increase the overall strength against wind load pressure.