The VELUX Top Hinged Roof Window (GPU) is designed to bring plenty of fresh air and natural light into an upstairs living area. The GPU window is specifically designed to be installed in a room on the upper level of a building where as the window will be within reach. The VELUX GPU windows open outward to a 45° angle, providing an unobstructed view while also opening inward for easy cleaning.


  • The GPU roof window comes white polyurethane moulding which has no visible joints
  • The top sash rotates completely inward so that the glass can be easily cleaned from inside the room
  • When the GPU roof window is closed, a ventilation flap can be opened to provide a breath of fresh air, even if it is raining outside
  • A complete line of flashing systems help ensure a weathertight installation for your GPU roof window on most types of roofs: shingles/shakes and high profile roofing
  • Opens to a 45° angle to satisfy current requirements for emergency escape and rescue

Sunscreening options for optimal light control [sold separately]
The GPU roof window is compatible with several manual sunscreening accessories including:
* Room Darkening Blinds - Block the light
* Light Filtering Blinds - Diffuse the light

Stain Grade wood interior (GPL Series) versions of this window are available in all the sizes listed below. Contact us for more information.

Quick Specs
Use Residential
Ventilation Yes
Flashing Required Yes
Blinds Available
Roof Pitch 20°-55°
GPU Installation Instructions ››

Note: Roof windows are not designed to be used in combination with skylights.

Illustration of GPL roof window with open bottom latch
Bottom Latch

Comfortable to operate and easy to access.

GPL Roof Window with ventilation flap open
Convenient ventilation

Our unique ventilation flap keeps dust and insects out while letting fresh air in.

Illustration of GPL roof window open 45 degrees
Uninterrupted View

Experience a clear view with the top-hung GPU's 45° opening angle.