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Beautiful windows and doors are possibly the most complex and interesting elements in the fabric of our homes. They provide light, fresh air and offer views that connect our interior living spaces with the great outdoors.  On the other hand, ordinary windows can also represent a major source of unwanted heat gain in summer and significant heat loss in winter.

Energy efficient windows and doors will help make your home more comfortable, reduce your energy costs and help to create a brighter, cleaner and healthier environment.  Wideline have conducted thorough testing across our product range through WERS (Window Energy Rating Scheme) and can tailor a solution to meet your energy requirements.

How do energy efficient windows and doors work?

Various factors come into play when determining energy efficiency of buildings, with windows forming only one part of the "whole of house" calculation. Floor plan and design of the house, eave projection, size of orientation of the windows/doors and the amount of cross-flow ventilations are all taken into consideration.

It is important to understand that heat energy can be transferred into or out of your home in two ways - Conduction and Radiation. The energy efficiency of a window system is expressed in terms of how well the window insulates against both.

A U-value expresses how well the window insulates against conductive heat transfer; it is a measure of conductive heat transfer. The lower the number, the better the window/door performs.

The Solar Heat Gain Coefficient (SHGC) quantifies how well the glazing mitigates radiant heat. Again, the lower the number, the better the window/door performs.

What is WERS?

WERS stands for Window Energy Rating Scheme. The Window Energy Rating Scheme enables windows and doors to be rated and labelled for their annual energy impact on a whole house, in any Australian climate.

To participate in WERS, window makers must obtain energy ratings for their products from a rating organisation that is accredited by the WERS Management Committee.

The Window Energy Rating Scheme is managed by the Australian Window Association (AWA).

WERS is independent of any one manufacturer and acts as a fair, rigorous and credible system for testing performance claims. WERS-rated windows must meet all relevant Australian standards. The scheme forms part of the quality assurance that smart manufacturers offer their customers.  It is all about certified performance.

You can view the certified energy ratings of Wideline's windows & doors at the WERS website.


If you have any questions in regards to energy performance, please contact one of our expert Wideline sales staff who will be able to assist you.




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