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GreenTech Glass Works (Pvt.) Ltd.

Insulated Glass Unit

IGU, more commonly known as double glazing (or double-pane, and increasingly triple glazing/pane), consists of two or three glass window panes separated by a vacuum or gas filled space to reduce heat transfer across a part of the building envelope.

Insulating glass is a very effective way to reduce air-to-heat transfer through the glazing. When used in conjunction with low-E and/or reflective coatings, IG units perform even better for conserving energy and comply with international standards.

The most common configuration of IG units for commercial building is a 6 mm lite, 12mm of air space and a 6mm lite. For home use 5 mm lite, 8mm of air space and a 5mm lite can also be used but this type of IGU will be less energy efficient.