Center Pivot Roof Window (GGL)
Product Description
VELUX GGL is an openable, centre-pivoting roof window for in-reach applications used to bring natural light and air into attics or lofts where ventilation is required.
Product Features:
- A short pull on the top control bar allows filtered passive ventilation even while the window remains shut.
- A second pull on the control bar allows the window to rotate for maximum ventilation – and up to 180º for cleaning the outer pane from inside the room.
- White pre-painted pine sash and frame
- Complete with outer aluminium cappings and flashings for tile or corrugated iron roofs.
- Available in 5 sizes
- Laminated double glazing as standard
Technical Performance
U-value † | Solar Heat Gain Co-efficient † | Bushfire^ | Hailstone Test †† | WERS max 5 stars (summer rating) | Australian standards |
| Skylight 2.50 Glass only 1.93 | Skylight 0.21 Glass only 0.28 | BAL40 | VELUX Simulated Tests ASTM E822-2009 |   | AS4285, AS1288 AS3959^, AS1530.8.1‡ |
NB: For roofs below 15° pitch, VSS needs to be raised to 15° and custom flashed. HIGH AND DRY SKYLIGHTS can assist with technical advice and drawings (build-up not recommended in bushfire areas). VSS skylights not suitable for VELUX Above-Below combination flashings – contact HIGH AND DRY SKYLIGHTS for more information.
†U-value (W/m²K) and SHGC data based on AFRC simulations, (VSS complete skylight: size 1140mm x 1180mm). ^Skylight only. Custom-made flashing required. Skylight tested in closed position, additional mesh protection may be required for opening apertures (consult local council). Roof pitch 18°-60°. ‡Assessed in closed position. ††Hailstone test not performed on VSS solar panel. Solar panel not attached during test.
BCA 2013 Vol 1 & 2 regulations (Prevention of Falls from Windows – Balustrades & Barriers): contact HIGH AND DRY SKYLIGHTS for information relating to restrictor devices for within-reach opening skylights.