Low E Glass
For greater thermal performance, the incorporation of Low E glass (Low Emissivity Glass) should be considered especially in the colder climate zones throughout NZ. Low E glass improves the insulating performance of a double glazed unit as it traps the heat inside the building.
The Low E coating is normally placed on surface 3 (inside) of the double glazed unit which retains the buildings internal heat while still letting solar heat gain through. Low E glass allows light to enter, while also providing a high level of thermal insulation. The use of Low E glass together with Argon gas will achieve the maximum thermal performance of a double glazed unit.
It should be noted that some Low E products have a slight colour. Please contact us for further light transmission details.
Low E Glass Types
There are different types Low E glass available, some that are even more efficient than triple glazing, for both cost and performance.
Low E Max - U Value 1.71 - High clarity, low haze. More insulating than plain glass with moderate protection from fading and glare
Low E Xcel - U Value 1.35 - Highest performance and clarity for optimal insulation with minimal condensation.
Insulating Glass Unit (IGU) type
Heat Loss Reduction
(Dependant on glass thickness and airspace between the panes of glass)
Low E and Argon
71% – 77%
71% – 77%
47% – 54%
Single Glazing (1-4mm clear glass)
0% – 1%
0800 2 GET GLASS
71 Maclaggan Street, Dunedin