Introduction
If you’re building a new home or renovating your existing property, you may have heard about double glazed windows. But what exactly are they, and why are they becoming a popular choice for Australian homes?
In simple terms, double glazing uses two panes of glass with an insulating space between them. This design helps reduce heat transfer through your windows, making your home more comfortable throughout the year.
What Is Double Glazing?
A double glazed window consists of two panes of glass separated by a sealed insulating cavity. The cavity can be filled with air or an insulating gas such as Argon.
The complete system also includes spacers, seals and a window frame, all of which contribute to the overall performance of the window.
Compared with single glazing, the additional glass layer and insulating cavity help reduce heat transfer through the window.
In winter, this can help retain indoor warmth. In summer, it can help reduce unwanted heat entering your home.
What Are the Benefits of Double Glazed Windows?
Better Thermal Comfort
Windows can be a major pathway for heat entering and leaving your home. Double glazing helps reduce this heat transfer, helping maintain a more comfortable indoor temperature throughout the year.
Improved Energy Efficiency
By reducing heat loss in winter and heat gain in summer, double glazing can help reduce the demand on heating and cooling systems.
The actual energy performance depends on factors such as the glass, frame, window orientation, shading and installation.
Reduced Outside Noise
The combination of two glass panes and an insulating cavity can also help reduce external noise.
For homes near busy roads, construction areas or other noisy environments, the right double glazed configuration can help create a quieter indoor space.
Reduced Condensation
Because double glazing provides better insulation, the internal glass surface can remain warmer than single glazing. This can help reduce condensation under suitable indoor conditions.
Double Glazing Is More Than Just Two Pieces of Glass
When choosing double glazed windows, it’s important to look at the complete window system, not just the glass.
Key factors include:
Glass + Argon Gas + Spacer + Aluminium Frame + Seals + Installation
For aluminium windows, the frame is especially important.
A thermally broken aluminium frame uses an insulating barrier within the frame to reduce heat transfer between the inside and outside.
This allows homeowners to combine the strength and durability of aluminium with improved thermal performance.
What Is U-Value？
When comparing energy-efficient windows, you may come across U-Value.
U-Value measures how easily heat passes through a window.
In general:
Lower U-Value = Better resistance to heat transfer
It’s important to compare the performance of the complete window system, rather than looking only at the glass.
Other factors, such as Solar Heat Gain Coefficient (SHGC), can also be important depending on your home’s location, orientation and design.
Double Glazing for New Homes & Renovations
Whether you’re building a new home or replacing existing windows, double glazing can be a worthwhile upgrade.
If your current windows are single glazed, draughty, noisy or uncomfortable during extreme weather, upgrading to double glazed aluminium windows can improve both the look and performance of your home.
For new homes, window selection can also be considered together with the home’s orientation, shading and overall energy-efficient design.
Why Choose Sunny Windows & Doors?
At Sunny Windows & Doors, we specialise in aluminium windows and doors for Australian homes.
From double glazed windows to thermally broken aluminium systems, we focus on combining modern design, durability and performance.
Whether you’re planning a new home or renovation, our team can help you find the right window and door solution for your project.
Looking to Upgrade Your Windows?
Talk to Sunny Windows & Doors about your project and find the right double glazed aluminium windows and doors for your home.
