
Center Pivot Roof Window (GGL)
VELUX GPL is an openable, dual action roof window designed for in-reach applications and developed for use in attics and lofts to maximise roof top views and ventilation.
Product Features:
- Opens in two ways: the bottom handle allows for top-hung opening; while a short pull on the top control bar operates the filtered vent flap for passive ventilation even while the window is shut. A longer pull allows the sash to rotate 180° for ease of 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
- Insect screen available as extra
Technical Performance

U-value † | Solar Heat Gain Co-efficient † | Heat Block | WERS max 5 stars (summer rating) | Australian standards |
Skylight 1.30 Glass only 1.00 | Skylight 0.31 Glass only 0.30 | Approx 70% | ![]() ![]() ![]() ![]() ![]() | AS4285‡, AS1288 |
NB: For roofs below 15° pitch, roof windows need to be raised to 15° and custom flashed. VELUX can assist with technical advice and drawings (build-up not recommended in Bushfire areas). †U-value (W/m²K) and SHGC calculated according to EN 14351-1:2006 + A2:2016 (window size 1140mm x 1400mm). Except Cyclonic
BCA 2013 Vol 1 & 2 regulations (Prevention of Falls from Windows – Balustrades & Barriers): contact VELUX for information relating to restrictor devices for within-reach opening skylights.