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
  • Insect screen available as extra

From $690 incl GST

Roof window GGL

Technical Performance

Skylight Installation Pitch
GGL roof window sizes
U-value †

Solar Heat Gain
Co-efficient †
Bushfire^

Heat Block

WERS max 5 stars
(summer rating)
Australian
standards
Skylight 1.30
Glass only 1.00
Skylight 0.31
Glass only 0.30
BAL40 Aprox 70%  
AS4285, AS1288
AS3959^, AS1530.1††

 

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). ^Bushfire testing applicable to GGL in roof pitch 18°-75°. Roof window only. Custom-made flashing required. Roof window tested in closed position, additional mesh protection may be required for opening apertures (consult local council). ††Assessed in closed position.
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.

Instructions