GPL Dual Action Roofwindow

study area with velux from skydome hunter coast
Picture for illustration purposes only

Maximise roof top views and ventilation

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.

installation pitch 15° to 55° from skydome hunter coast

Technical Performance

U-value †Solar Heat Gain Co-effecient †Bushfire^Heat BlockWERS max 5 stars (summer rating)Australian standards
Skylight 1.30‡
Glass only 1.00
Skylight 0.31
Glass only 0.30
BAL40Approx. 70%GPL Dual Action Roofwindow - AS4285‡, AS1288 AS3959^, AS1530.1††

Note: BCA 2013 Vol 1 & 2 regulations (Prevention of Falls from Windows – Balustrades & Barriers): contact Skydome Hunter Coast for information relating to restrictor devices for within-reach opening skylights.

^Bushfire testing applicable to GPL in roof pitch 18°-55°. 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.

GPL Frame and Glazing Dimensions

GPL Dual Action Roofwindow -GPL Dual Action Roofwindow -GPL Dual Action Roofwindow -GPL Dual Action Roofwindow -GPL Dual Action Roofwindow -
New Product/Size CodeCK04MK04MK06MK08SK06
Old Code Pre June 2015C04M04M06M08S06
Overall Frame Size WxH mm550x980780x980780x1180780x14001140x1180
Internal Glass Size WxH mm371x783601x783601x983601x1203961x983
Daylight Area M20.290.470.590.720.95
Ventilation Area M20.390.580.720.871.09
2076 Laminated Glazing as StandardGPL Dual Action Roofwindow -GPL Dual Action Roofwindow -GPL Dual Action Roofwindow -GPL Dual Action Roofwindow -GPL Dual Action Roofwindow -
Weight in Kg*35.441.546.853.361.0