2011 WERS Certified Products Directory – AFRCWERS

1. Uw is the whole window U-value
2. SHGCw is the whole window solar heat gain coefficient
3. Tvw is the whole window visible (light) transmittance
4. Percentage improvement figures are compared with using base-case Generic
Window 1 (3mm clear in standard aluminium frame)
5. A negative percentage improvement figure indicates performance worse than
the base-case window
6. A positive percentage improvement figure indicates performance better than
the base-case window
7. Maximum air infiltration is 5.0L/s.m2 at a positive pressure difference of 75
Pa as measured according to AS 2047
8. Static performance (Uw SHGCw Tvw Tdw) calculated using Window 6.3 and Therm 6.3
software (LBNL), 1999-2010
9. Annual energy performance (stars and % improvements) calculated using
Nationwide House Energy Rating Software (AccuRate) according to procedures of WERS 2008.
10. Results disclosed at Australian Fenestration Rating Council (AFRC)