
Energy Ratings
Here you'll find the energy performance ratings for the window and door systems we proudly manufacture and supply from our Tasmanian workshop.
These ratings play an important role in achieving compliance for your home through the NatHERS assessment process. At GP Glass, we believe in providing transparent, accurate information to help homeowners, builders, and designers make informed decisions from the outset.
By getting the data right the first time, you can streamline the design and compliance process, potentially saving both time and money throughout your build.
FRAME | GLASS | Uw | SHGCw | Tvw | Ai |
|---|---|---|---|---|---|
Urban Plus Hinged Door | 4Clr/10Ar/4Clr | 3.9 | 0.52 | 0.54 | 0.95 |
Quantum Sliding/Stacking Door | 4Clr/10Ar/4Clr | 3.7 | 0.62 | 0.67 | 1.33 |
Quantum Fixed Window | 5Clr/14/5Clr | 3.3 | 0.65 | 0.71 | 0 |
Quantum Fixed Window | 4Clr/16/4Clr | 3.4 | 0.67 | 0.71 | 0 |
Quantum Awning Window | 4Clr/10Ar/4Clr | 4.6 | 0.49 | 0.49 | 0.16 |
Urban Plus 390 Sliding Window | 4Clr/10Ar/4Clr | 4.1 | 0.59 | 0.61 | 0.26 |
Synergy Awning Window | 4Clr/10Ar/4Clr | 4.1 | 0.57 | 0.58 | 0.04 |
Synergy Fixed Window | 4Clr/12Ar/4Clr | 3.2 | 0.7 | 0.73 | 0 |
The Window Energy Rating Scheme (WERS) provides a scientifically-based, fair and credible rating system for the assessment of window products for their energy efficiency performance. WERS is accredited by the Australian Fenestration Rating Council (AFRC) and adheres to AFRC protocols and procedures for the rating of windows and glazed doors. Energy Ratings provided by WERS are third party certified to the AFRC requirements, compliant with the National Construction Code (NCC), and able to be used to meet Regulatory requirements.
GP Glass are an accredited member of AGWA and can issue WERS Energy Certificates at no added expense.

