Achieving Energy Efficiency in Queensland
Climate Zones in Queensland
The Queensland coastal region (climate zone 2) is primarily a cooling climate, so it is most important that your Windows and Doors have a low Solar Heat Gain Coefficient (SHGC), as you want to prevent the heat from the sun from entering your house.
At the same time, climate zone 2 experiences mild winters, so having windows with a lower U Value is equally important. A lower U Value contributes to energy efficiency by minimising heat loss and reducing the need for heating in cooler seasons. In turn, this lowers energy consumption and associated heating costs.
For the Western region, including Toowoomba and Dalby (climate zone 5), please refer to the Window and Door Specification for 7-Stars - NSW guide.
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 Queensland climate zone, 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. There are many other options available to meet a variety of needs; please contact your Trend representative for more information.
GOOD
Low E Clear - Synergy Sliding Window
A good upgrade from Standard Clear Single Glazing is Low E Clear. The glass is coated in thin layers of metallic oxide when manufactured, which reflects radiant heat helping to maintain a cooler interior.
BETTER
Low E Neutral - Synergy Sliding Window
For an even better performance for difficult climate zones, orientations or house designs, you can choose Low E Neutral which provides a significant improvement in reducing your SHGC.
BEST
Low E Grey - Synergy Sliding Window
A single glazed unit with Low E Grey toned glass. This combination of glass provides superior energy efficiency and will help with compliance for even the most demanding designs or sites.
SUPERIOR
Double glazed Low E Grey - Synergy Sliding Window
Double glazing with Low E Grey toned glass provides a significant improvement in the U value helping to retain heat in cooler months, and SHGC helping to prevent the heat from the sun entering your house in the warmer months.
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.
Synergy Awning Window
| WERS Code | Option | Glass Type | U Value | SHGC |
| TND-002-002 | Standard | Clear | 6.5 | 0.65 |
| TND-002-TBA | Good | Low E Clear | 5.1 | 0.56 |
| TND-002-038 | Better | Low E Neutral | 5 | 0.43 |
| TND-002-037 | Best | Low E Grey | 5 | 0.3 |
| TND-002-TBA | Superior | Low E Grey – DG | 3.3 | 0.32 |
Synergy Sliding Window
| WERS Code | Option | Glass Type | U Value | SHGC |
| TND-001-001 | Standard | Clear | 6.5 | 0.73 |
| TND-001-TBA | Good | Low E Clear | 4.7 | 0.62 |
| TND-001-040 | Better | Low E Neutral | 4.7 | 0.46 |
| TND-001-039 | Best | Low E Grey | 4.7 | 0.32 |
| TND-001-TBA | Superior | Low E Grey – DG | 3.3 | 0.32 |
Synergy Sliding Door
| WERS Code | Option | Glass Type | U Value | SHGC |
| TND-017-001 | Standard | Clear | 6.4 | 0.73 |
| TND-017-020 | Good | Low E Clear | 4.4 | 0.6 |
| TND-017-035 | Better | Low E Neutral | 4.6 | 0.47 |
| TND-017-032 | Best | Low E Grey | 4.6 | 0.32 |
| TND-017-TBA | Superior | Low E Grey – DG | 2.8 | 0.34 |
Quantum Awning Window
| WERS Code | Option | Glass Type | U Value | SHGC |
| TND-059-002 | Standard | Clear | 6.7 | 0.56 |
| TND-059-032 | Good | Low E Clear | 5.7 | 0.48 |
| TND-059-020 | Better | Low E Neutral | 5.6 | 0.37 |
| TND-059-023 | Best | Low E Grey | 5.6 | 0.27 |
| TND-059-TBA | Superior | Low E Grey – DG | 3.9 | 0.28 |
Quantum Sliding Window
| WERS Code | Option | Glass Type | U Value | SHGC |
| TND-078-002 | Standard | Clear | 6.7 | 0.67 |
| TND-078-031 | Good | Low E Clear | 5.2 | 0.58 |
| TND-078-019 | Better | Low E Neutral | 5.2 | 0.43 |
| TND-078-022 | Best | Low E Grey | 5.1 | 0.3 |
| TND-079-057 | Superior | Low E Grey – DG | 3.4 | 0.29 |
Quantum Sliding Door
| WERS Code | Option | Glass Type | U Value | SHGC |
| TND-017-001 | Standard | Clear | 6.4 | 0.73 |
| TND-017-020 | Good | Low E Clear | 4.4 | 0.6 |
| TND-017-035 | Better | Low E Neutral | 4.6 | 0.47 |
| TND-017-032 | Best | Low E Grey | 4.6 | 0.32 |
| TND-017-TBA | Superior | Low E Grey – DG | 2.8 | 0.34 |
ACHIEVING ENERGY EFFICIENCY IN QUEENSLAND
Window and Door Specification for 7-stars
Download our window and door specification guide QLD 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.
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