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Super Insulating Glass will greatly improve the thermal performance of you glass extension. By integrating an incorporating polyester film into the glazing unit you create two air cavities and an extra insulating layer, meaning that heat loss though the glass in reduced.

Using IQ’s SIG (Super Insulating Glass) units you can achieve U values of as little as 0.38. When you compare that to a standard double glazed unit u value of 2.8 and consider that the U-Value of a brickwork wall is 0.25 you can see that the glass is truly thermally efficient.

The Super Insulating film also blocks the majority of UV light, protecting any internal faces from the sun’s rays including real wood floors, upholstery and artwork. The glass is completely transparent and un-tinted meaning that you still achieve the clarity of your glass extension with the thermally insulated glazing, keeping your heat inside where you want it.

 
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