Sustainable design is no longer a ‘nice-to-have’ in Australian design and construction. It’s a fundamental requirement to stay compliant under the National Construction Code (NCC), driven by the urgent need to address environmental challenges through creating functional, energy-efficient spaces.
Low-emissivity (low-E) glass is becoming a secret weapon in sustainability, with cutting-edge advancements that enhance energy efficiency and the comfort of inhabitants through high-performance windows like those manufactured by Thermotek.
From new residential homes to major renovations and retrofits, this advanced glazing technology is changing the way architects, interior designers, builders and homeowners approach sustainable windows and eco-friendly building practices.
What is Low-Emissivity Glass?
Low-emissivity (low-E) glass is a type of glazing that features a microscopically thin, transparent coating designed to reflect infrared energy (solar heat) while allowing visible light to pass through.
This unique capability helps reduce heat transfer, making it a game-changer for sustainable design.
Thermotek utilises low-emissivity coatings on our glass panes to enhance insulation and energy efficiency. These coatings are applied to the glazed surface to repel radiant heat from the interior while allowing natural light to enter.
Used in both our double and triple-glazing systems, Low-E coatings are an essential complement to the uPVC frames and impeccable sealing we use, that further improve thermal performance.
With double and triple glazing, the additional glass panes and argon gas fill in offer even greater insulation, reducing heat loss and drafts significantly.
By integrating these facets of sustainable design, Thermotek window and door solutions maintain comfortable indoor temperatures year-round, promoting energy efficiency and comfort.
How Are Low-E Coatings Applied?
Low-E coatings come in two main types:
Hard-Coat Low-E Glass: Applied during the glass manufacturing process, this durable option is suitable for single-pane windows but offers only moderate energy efficiency.
Soft-Coat Low-E Glass: Applied after the glass is formed, soft-coat low-E glass provides superior energy performance, making it a preferred choice for double- or triple-glazed units, such as the ones that Thermotek offers.
What Are the Key Benefits of Low-Emissivity Glass in Sustainability?
Here’s how Low-E glass works in practice to improve energy efficiency. It:
Reduces Energy Consumption
Low-E glass minimises heat loss in winter and prevents heat gain in summer, reducing reliance on heating and cooling systems. This translates into lower energy costs for occupants and overall reduced environmental impact.
Enhances Indoor Comfort
By regulating indoor temperatures, low-E glass ensures a more comfortable living or working environment. It allows natural light to flood a space without compromising thermal performance, a key aspect of modern sustainable design.
Meets Australian Standards
As energy efficiency standards become stricter, low-E glass helps architects, designers and builders comply with regulations like Australia’s National Construction Code (NCC), which emphasises sustainable building practices. Under the latest edition of the NCC (2022), which came into force in May 2023, all new residences must achieve 7 NatHERS stars when it comes to energy efficiency, as well as an efficient ‘Whole of Home’ rating.
What Are the Applications of Low-Emissivity Glass in Buildings?
Low-E glass is a versatile material that integrates seamlessly into various design contexts, including:
Residential Homes
Incorporating low-E glass into homes enhances thermal comfort while reducing energy bills. Homeowners can enjoy beautiful views and natural light without sacrificing comfort or sustainability. Thermotek Smart Slide systems are a stunning way to open up a space and create an indoor-outdoor flow perfect for Australian living.
Commercial Buildings
For office spaces and retail environments, sustainable windows made with low-E glass contribute to significant energy savings. Designers can create visually stunning façades while supporting sustainable building practices. Plus, it regulates indoor solar radiation for occupants.
Modular and Prefabricated Construction
Low-E glass enhances the efficiency of modular homes and prefab structures, aligning perfectly with the principles of sustainable design. Thermotek window and door systems can be installed in modular homes offsite
uPVC Window Frames Work in Tandem With Low-Emissivity Glass
When it comes to sustainable design, the choice of window profile is just as important as the glass itself. Thermotek’s uPVC window frames are an ideal complement to low-emissivity glass, enhancing both energy efficiency and durability. Here’s how uPVC enhances long-term sustainably:
Exceptional Thermal Performance
uPVC (unplasticised polyvinyl chloride) is a highly insulative material and non-conductive, helping to reduce heat transfer between the indoors and outdoors.
When paired with low-E glass, it creates a window system that maximises thermal efficiency, minimising the need for heating or cooling.
It Has Low Embodied Carbon
Compared to traditional materials like aluminium or timber, uPVC has a lower embodied carbon footprint. Advances in recycling technologies also mean that uPVC can be recycled several times, becoming stronger with each iteration. This further reduces its environmental impact.
Durability and Longevity
uPVC is resistant to weathering, corrosion, and termites, making it a long-lasting choice for windows. Its durability ensures fewer replacements over time, reducing waste and supporting sustainability goals.
Low Maintenance Requirements
Unlike timber frames, which require regular painting and maintenance, uPVC frames are virtually maintenance-free. This reduces the use of potentially harmful chemicals and coatings, further contributing to eco-friendly building practices.
Improved Noise Reduction
In addition to their thermal benefits, uPVC frames also provide excellent sound insulation. This makes them a popular choice for urban environments where reducing noise pollution is a priority for sustainable design.
By combining low-emissivity glass with uPVC window frames, architects, designers, builders and homeowners can achieve a great balance of energy efficiency, durability, and visual appeal.
Thermotek’s range of uPVC-framed windows, including our Boutique Series and Smart Slide systems, exemplifies this balance, delivering sustainable solutions without compromising on functionality or aesthetics.
Misconceptions About Low-Emissivity Glass
Despite its benefits, low-emissivity glass is sometimes misunderstood. One common concern is that it is too expensive. While the initial cost may be slightly higher, the long-term savings on energy bills and the increased comfort make it a cost-effective investment for both homeowners and designers.
Another misconception is that it makes rooms too dark. This isn’t the case with modern low-E coatings, which allow high levels of visible light transmission, ensuring bright, well-lit spaces that feel open and inviting.
Harnessing the expertise of a manufacturer like Thermotek means that low-E glass will always be installed correctly for optimal performance. We provide expert guidance to ensure seamless integration into your project.
Stylish Sustainable Design with Low-Emissivity Glass
Harnessing the expertise of a manufacturer like Thermotek means that low-E glass will always be installed correctly for optimal performance. We provide expert guidance to ensure seamless integration into your project.
For designers, low-E glass represents an opportunity to enhance sustainable design through the fabric of the building and high-performance windows. By incorporating this versatile material into your projects, you can create buildings that are not only beautiful but also environmentally responsible.
Thermotek is proud to be at the forefront of sustainable design, offering a range of window solutions that utilise low-E glass technology. Our products are designed to maximise energy efficiency without sacrificing style.
The Thermotek Boutique Series exemplifies the perfect balance of style and sustainability, offering premium window and door solutions tailored for modern living. Designed with aesthetics in mind, the Boutique Series features sleek profiles and customisable options to suit any architectural style.
It also incorporates low-emissivity glass and energy-efficient uPVC frames, ensuring superior thermal insulation and reduced energy consumption.
Whether for residential or commercial applications, the Boutique Series allows designers to create light-filled, comfortable spaces without compromising on environmental responsibility.
Start Your Journey to Sustainability With Thermotek
By choosing Thermotek’s sustainable window and door systems, designers and homeowners alike can achieve their vision for eco-friendly, comfortable, and energy-efficient spaces. Additionally, our uPVC frames work in tandem with low-E glass to enhance thermal performance and durability, further reducing environmental impact.
By reducing energy consumption, enhancing indoor comfort, and supporting environmental goals, Thermotek is at the forefront of sustainable design in Australia.
Whether you’re an architect, a homeowner, or a builder, incorporating low-E glass into your next project is a step toward a greener future. Explore Thermotek’s range of sustainable window and door systems to discover how our products can bring your design vision to life.
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