A Comprehensive Guide to Thermally Broken Aluminium Windows: How AluBREAK Systems Improve Energy Performance
When designing modern Australian homes and commercial buildings, energy efficiency is no longer optional, it’s essential. With rising energy costs and stricter building regulations, selecting the right window system plays a major role in overall thermal performance.
That’s where AluBREAK Thermally Broken Systems from Concept Aluminium Systems stand apart.
Unlike standard aluminium frames, thermally broken systems are engineered to significantly reduce heat transfer, delivering better comfort, lower energy consumption, and improved long-term performance.
What Is a Thermally Broken Aluminium Window?
Aluminium is incredibly strong and durable, but it’s also a natural conductor of heat. Without modification, heat can transfer through the frame from outside to inside (or vice versa), impacting indoor comfort.
A thermally broken system solves this by inserting a low-conductivity polyamide barrier between the interior and exterior aluminium sections.
In simple terms:
Exterior aluminium
– Thermal barrier (insulating strip)
– Interior aluminium
This “break” dramatically reduces thermal bridging.
According to the Australian Government’s YourHome guide, windows can account for up to 40% of a home’s heat loss and up to 87% of unwanted heat gain if not properly specified.
By incorporating thermal break technology, systems like AluBREAK directly address this issue.
How the AluBREAK System Works
The AluBREAK Thermally Broken Windows and Doors range from Concept Aluminium Systems is specifically engineered for high-performance residential and commercial applications.
Here’s what makes it technically superior:
- Polyamide Thermal Barrier
A reinforced polyamide strip separates internal and external aluminium profiles. This reduces conductive heat flow while maintaining structural strength. - Double Glazing Compatibility
AluBREAK systems are designed to accommodate high-performance glazing units, improving overall U-values and energy ratings. - Structural Integrity
Unlike some alternative materials, aluminium maintains rigidity even in larger spans — allowing for expansive glass panels without compromising performance. - Weather & Acoustic Sealing
Advanced sealing systems reduce air infiltration and improve acoustic insulation — ideal for urban environments.
Where AluBREAK Systems Are Best Suited
Thermally broken systems are particularly effective in:
- High-end residential builds
- Energy-rated developments
- Coastal environments
- Multi-storey commercial projects
- Homes requiring 7+ star energy compliance
They are increasingly specified by architects seeking both performance and slimline aesthetics.
For broader residential options, Concept Aluminium also offers the AluRES Residential Window Systems, which are suited for standard performance applications.
For commercial-scale applications, the AluCOMM Window & Door Systems provide structural capability for larger façade projects.
Why Thermally Broken Aluminium Is a Smart Long-Term Investment
While thermally broken systems may involve a higher upfront cost than standard aluminium frames, the long term return is significant:
- Reduced heating and cooling loads
- Improved thermal comfort year-round
- Lower condensation risk
- Enhanced acoustic performance
- Increased property value
- Compliance with modern NCC energy standards
In climates like Australia (where summer heat and winter cold both demand performance) investing in advanced frame technology pays dividends.
Comparing Standard Aluminium vs Thermally Broken Aluminium
| Feature | Standard Aluminium | AluBREAK™ Thermally Broken |
| Heat Transfer | High | Significantly Reduced |
| Energy Rating | Moderate | High |
| Condensation Resistance | Limited | Improved |
| Suitable for High Energy Homes | Limited | Yes |
| Structural Strength | High | High |
This balance of strength + insulation is what makes thermally broken aluminium increasingly preferred over uPVC in architectural applications requiring larger spans.
FAQs – AluBREAK Thermally Broken Systems
What is the main benefit of thermally broken aluminium?
The primary benefit is reduced heat transfer through the frame, improving overall building energy efficiency and comfort.
Does thermal break affect structural strength?
No. The polyamide barrier maintains structural integrity while improving insulation performance.
Are AluBREAK systems compliant with Australian standards?
Yes. Concept Aluminium Systems designs and tests its systems to meet Australian building and performance requirements.
Are thermally broken windows worth the cost?
For energy-rated homes and high-performance builds, the long-term energy savings and comfort improvements make them a strong investment.
Can thermally broken systems be used in commercial buildings?
Yes. They are particularly effective in projects requiring strict thermal performance compliance.
Ready to Specify a Thermally Broken System?
If you’re designing a high-performance residential or commercial project, specifying the right window system is critical to achieving energy targets, long-term durability, and occupant comfort.
Concept Aluminium Systems’ AluBREAK Thermally Broken Window & Door Systems are engineered specifically for Australian conditions, combining structural strength with advanced thermal technology.
Whether you’re an architect refining façade performance, a builder working toward NCC compliance, or a developer aiming to enhance long term asset value, AluBREAK delivers the performance confidence your project demands.
Explore the full AluBREAK product range here: https://conceptaluminium.com.au/product-category/alubreak/