Window and Door for 7-Stars - VIC and ACT

When it comes to evaluating the performance of your Windows and Doors, there are several factors to be considered when deciding the best options for keeping your home thermally comfortable. Glazing has the greatest impact and which glass is best depends on your climate and whether more energy is used heating or cooling your house: ‘Climate zones’ are defined by the Australian Building Codes Board, referenced in the National Construction Code and they are used in energy rating a home.

Achieving Energy Efficiency in cool climates

Climate Zones in Victoria and ACT

The climate zones in Victoria and the ACT (climate zones 6, 7 and 8) are considered heating climates, and require windows and doors with a low U Value (which denotes better insulation) and high Solar Heat Gain Co-efficient (SHGC) (to capture free heat from the sun).

ACHIEVING ENERGY EFFICIENCY IN COOL CLIMATES

Options for improving your Energy Efficiency through glass

To make your selection easier, we've created a good, better, and best glass offer for the VIC and ACT climate zones, with tiered performance levels. While performance will be a major consideration in deciding which glass to use, other factors such as cost, window colour, availability, and lead times may also play a role. Many other options are available to meet various needs; please contact your Trend representative for more information.

GOOD

Double glazed clear - ThermaHybrid

Our Good option for those seeking to upgrade the energy efficiency performance of their windows and doors at no extra cost. Using Trend’s Quantum and Synergy frames with an enhanced thermally broken Sash or Panel to help achieve better performance.

BETTER

Single ‘Soft’ Coat Low E - ThermaHybrid

For even Better performance in more demanding climate zones, orientations, or house designs, you can apply a single ‘Soft’ Low E coating to your glass, further minimising heat loss to the external environment.

BEST

Double ‘Soft’ and Hard’ Coat Low E - ThermaHybrid

Our Best performing glass is a Double-Glazed Double-Coat Low E unit, using both a Soft and Hard Low E coating on surfaces 2 and 4 of your glass. These two coatings lower the U-value even more.

SUPERIOR

Double glazed Single & Double Low E Coat - ThermaRes and ThermaArc

Our Superior offering means you choose from either our ThermaRes or ThermaArc series, both fully thermally broken. Available with Single or Double-Coat Low E double-glazing, providing a range of options to suit the most advanced energy needs.

Energy Ratings 

In addition to good design and orientation, the products and glazing we recommend below will assist in achieving 7-stars for your building.

Residential Awning Window
WERS Code Product Series Option Glass Type U Value SHGC
TND-002-015 Synergy - Clear IGU 4.1 0.57
TND-120-001 ThermaHybrid Good Clear IGU 3.7 0.59
TND-120-002 ThermaHybrid Better Low E Clear IGU  2.9 0.46
TND-120-008 ThermaHybrid Best Double Coat Low E IGU  2.7 0.41
TND-102-026 ThermaRes Superior Low E Clear IGU  2.2 0.42
Residential Sliding Window
WERS Code Product Series Option Glass Type U Value SHGC
TND-001-015 Synergy - Clear IGU 4.2 0.58
TND-001-030 Synergy Good Low E Clear IGU 3.3 0.47
TND-001-021 Synergy Better Double Coat Low E IGU 3.0 0.42
TND-001-300 Synergy Best Low E Clear IGU 2.2 0.50
TND-104-024 ThermaRes Superior Double Coat Low E IGU 2.0 0.45
Residential Sliding Door
WERS Code Product Series Option Glass Type U Value SHGC
TND-017-009 Synergy - Clear IGU 3.8 0.63
TND-150-001 ThermaHybrid Good Clear IGU 3.4 0.64
TND-150-002 ThermaHybrid Better Low E Clear IGU 2.6 0.44
TND-150-005 ThermaHybrid Best Double Coat Low E IGU 2.3 0.49
TND-108-024 ThermaRes Superior Double Coat Low E IGU 1.7 0.44
Architectural Awning Window
WERS Code Product Series Option Glass Type U Value SHGC
TND-060-001 Quantum - Clear IGU 4.6 0.49
TND-119-001 ThermaHybrid Good Clear IGU 4.3 0.56
TND-119-003 ThermaHybrid Better Low E Clear IGU 3.5 0.44
TND-119-014 ThermaHybrid Best Double Coat Low E IGU 3.4 0.40
TND-103-018 ThermaArc Superior Low E Clear IGU 2.3 0.40
Architectural Sliding Door
WERS Code Product Series Option Glass Type U Value SHGC
TND-017-009 Quantum - Clear IGU 3.7 0.62
TND-017-022 Quantum Good Low E Clear IGU 2.8 0.49
TND-917-300 Quantum Better Double Coat Low E IGU 2.4 0.44
TND-109-034 ThermaArc Best Low E Clear IGU 2.1 0.47
TND-109-053 ThermaArc Superior Double Coat Low E IGU 2.0 0.48

ACHIEVING ENERGY EFFICIENCY in cool climates

Window and Door Specification for 7-stars

Download our window and door specification guide which includes the glass options for improving your energy efficiency to meet the 7-star requirements, as well as a cheat sheet of WERS values to make product selection easy.

Window and Door Specification for 7-Stars

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Your glass choice will make a huge contribution to your homes energy efficiency.