Choosing the Right Glazing for Your Home

Selecting the right glazing for your needs involves considering several factors:

Climate: Choose glazing that suits your local climate. For warmer areas, low-E glass is effective, all Arkular homes come standard with double glazing, although triple glazing may be ideal for some colder regions.

Style: Ensure the window style complements your home’s chosen architectural style.

Functionality: Think about ventilation options. Awning or casement windows can provide better airflow compared to fixed windows.

Budget: Factor in both initial costs and energy savings. While high-performance windows can be more expensive upfront, they often lead to cost savings on energy bills.

Selecting Energy-Efficient Glazing: Boost Comfort and Cut Costs

Glazing greatly impacts thermal performance. Up to 40% of heating energy can be lost, while up to 87% can be gained through windows so enhancing your glazing can boost comfort, cut energy costs, and reduce greenhouse gas emissions.

– Double Glazing (Very High Energy Efficiency): Two sheets of glass with a space in between filled with gas (like argon) for insulation.
– Triple Glazing (Highest Energy Efficiency): Three sheets of glass offering exceptional thermal insulation, ideal for cold climates.
– Low-E Glass (High Energy Efficiency): Glass coated with a thin layer that reflects heat back inside, reducing heating costs.
– Gas-Filled Windows (High Energy Efficiency): Windows filled with gases (argon or krypton) to enhance insulation capabilities.

Image: Alphington House

Image: Modern Barn Form by Red Architecture

Image: Scrubby Bay House by Patterson Associates 

Choosing The Right Frames

Frames play a crucial role in the thermal performance of windows and doors, influencing energy gain and loss alongside the glass. Choosing the right frame type is essential for optimal passive design and efficiency.

Aluminium: Aluminium frames are lightweight, strong, and durable, available in various finishes, they conduct heat well, which can reduce insulation unless specially engineered.

Thermally Broken Aluminium: Thermally broken frames consist of two aluminium sections separated by a low-conductivity polymer. This design minimises heat transfer, making them some of the highest-performing options for any climate. While they can be costly, prices are dropping as they become more popular.

Timber Frames: Timber frames are strong natural insulators, ideal for certain designs, but should be made from durable species or treated to resist decay. Sourcing from sustainably managed forests is essential. Due to timber’s tendency to expand and contract with humidity, larger tolerances are needed.

uPVC: uPVC frames, made from unplasticised polyvinyl chloride, offer excellent thermal performance and longevity. They require minimal maintenance and can be shaped for superior air sealing. uPVC frames are growing in popularity in Australia and are already common in Europe and North America.

Image: Timber Frame – Dollis Hill Avenue by Thomas-Mcbrien Architects

Image: Thermally Broken Window by A Frame Builders + Design 

Image: Timber Frames alterstudio

Types of Windows to Consider: Enhance Your Home’s Aesthetics and Efficiency

Louvre Windows

Louvre windows feature adjustable horizontal slats that control airflow and light. They enhance ventilation in tight spaces, elevate modern aesthetics, and boost energy efficiency by reducing reliance on air conditioning.

Double Hung Windows

Double hung windows are a classic choice with two operable sashes that slide up and down. They provide excellent ventilation, allowing both sashes to open for effective cross-ventilation and a comfortable indoor climate.

Awning Windows 

Awning windows hinge at the top and open outward, providing ventilation and natural light even in light rain. Their compact design fits tight spaces, and they come in various materials and finishes for enhanced aesthetics and energy efficiency when closed.

Horizontal Sliding Windows 

Image: Ventnor House

Image: Louvre Windows at Bondi Mews by Lawless and Meyerson Architects photography by Tom Ferguson

Image: Awning Window

Image: Bathroom Skylight by Modify

Budget Considerations For Glazing

Selecting the right glazing is crucial for balancing energy efficiency, aesthetics, and budget. Here are some key factors to consider to ensure you make cost-effective choices:

Initial Costs vs. Long-Term Savings

While high-performance glazing options may have a higher upfront cost, they can significantly reduce your long-term energy bills.

Evaluate Your Climate

Depending on whether you live in a warm or cooler climate, different glazing options will be more effective. Low-E glass may be ideal for warmer regions, while triple glazing might be necessary for colder areas.

Energy Efficiency

Understand performance ratings when selecting glazing. Windows with a high Energy Efficiency Rating (EER) may cost more initially but save you money on heating and cooling.

Consider Window Orientation

Strategically placing windows can enhance natural light and reduce the need for artificial lighting. North-facing windows can harness solar energy in colder months, while shading can help manage heat in warmer climates.

Opt for Standard Sizes

Choosing standard window sizes can save on manufacturing and installation costs. Custom windows often come with higher price tags.

Plan for Maintenance

Long-term maintenance can lead to hidden costs. Opt for glazing that requires minimal upkeep to avoid ongoing expenses.

Image: Ventnor House

Image: Back Country House Ltd Architects

Image: Ventnor House