Glass Replacement

Will Energy Efficient Glass Benefit My Adelaide Home?

Save Money On Heating Bills

Installing energy-efficient windows for your home is widely recognised as an effective way to cut down on drafts and save money on heating bills. Double-glazed units stop heat transfer from the outside in, and when used effectively you can achieve up to 30% reduction in heating and cooling costs. The most effective double-glazed units have proven to consist of between a 12mm to 13mm air space, no more, no less. Unlike single glazed units, maximum energy efficiency is achieved when a carefully selected unit is fitted into a wide commercial frame.

However, how much do these replacement windows cost—and can potentially save you?

For example, if you have old windows, they will have a single pane of glass and allow cold air to pass through from one side to the other quickly and lets the heat out of your home during the winter months and have a similar job of keeping your air conditioning contained during the summer.

However, energy-efficient windows will have two, or even three, panes to cocoon your home. In between these panes of glass, manufacturers of energy-efficient windows inject an inert gas like argon or krypton. Because these gases are denser than air, they reduce the amount of air that is transferred into and out of your house.

Insulated glass units (IGUs) also feature what’s known as low-emissivity glass which is a microscopically thin layer of metallic oxides that both control your infrared light and reflect the sun’s ultraviolet rays and have the combined effect of reducing solar heat gain in the summer and lowering home heat loss in the winter.

A key element of double glazing is related to the U-value, and this represents the heat transfer through a window irrespective of direct sunlight.  The U-value is specific to windows and glass and is the inverse of the commonly used R-value, which is used for insulation properties of walls and other building materials. The U-value is essential for measuring the heat transfer both in and out of the window. The more heat transfer that the window can resist the better an insulator it is. It can either stop the heat from coming in on a hot summer day (MAG-01-03) or prevent the heat from escaping on a cold winter evening (MAG-01-01).

The U-Value also represents the heat transfer through a window irrespective of direct sunlight. Heat would still move through a closed window at night-time and for this reason the lower the U-Value, the better the insulation performance.

How your windows are installed can also make a massive difference to their performance, and while you can buy the most expensive windows on the market, with the best energy- efficiency ratings, if they aren’t installed correctly, you won’t see the energy savings.

One of the many options to gain great thermal benefit is to use Low E Glass which provides additional solar control by keeping your home warm in winter and cool in summer. Low E Glass comes in a variety of colours such as bright, neutral, grey, green and super green.  Jim’s Glass Adelaide (also provides an energy rating assessment with all new building work and welcomes your plans and details into our showroom.

Why don’t you call Jim’s Glass on 131 546 today for further information!