Window Energy Rating Scheme (WERS) values for all Rylock Nunawading products, calculated at the WERS default rating size for each product type. Independently assessed by Accredited Simulation Assessors using AFRC-approved software.
About these ratings: WERS is Australia’s Window Energy Rating Scheme, managed by the Australian Window Association since 1995. All product-specific WERS values below start with Window ID RYL and have been independently tested. Ratings are calculated at the WERS default rating size and configuration for each product type.
These values support the preparation of accurate NatHERS energy reports. Energy performance is product- and size-specific — as product sizes change, energy values will vary. Contact us for Uw Value and SHGCw Value ratings at your project’s actual product sizes and custom configurations.
| Window ID | Product | Glass Specification | Glass Type | Frame Material | Cooling ★ | Cooling % | Heating ★ | Heating % | Uw | SHGCw | TVw | Air Infilt. |
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* Cooling and Heating star ratings and percentage improvements are calculated relative to a standard single-glazed aluminium reference window at the WERS default rating size. Ratings are for guidance only — consult Rylock Nunawading for project-specific energy assessments.
Need ratings for your specific project?
Rylock Nunawading can provide actual Uw Value and SHGCw Value energy ratings for your project’s specific product sizes and custom configurations. Contact our team for a consultation.


