Bottom Operated Polyurethane roof window Tophung - GPUBottom Operated Polyurethane roof window Tophung - GPUBottom Operated Polyurethane roof window Tophung - GPUBottom Operated Polyurethane roof window Tophung - GPUBottom Operated Polyurethane roof window Tophung - GPUBottom Operated Polyurethane roof window Tophung - GPUBottom Operated Polyurethane roof window Tophung - GPUBottom Operated Polyurethane roof window Tophung - GPUBottom Operated Polyurethane roof window Tophung - GPU
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Bottom Operated Polyurethane roof window Tophung - GPU

GPU is a top-hung roof window that can be installed on roof pitches from 15-55° (and up to 75° with specially manufactured springs). The sash can remain open in any position up to an angle of 45° to enjoy panoramic, uninterrupted views. The window is operated from a handle on the bottom of the sash.  There is a ventilation flap along the top sash of the window which allows fresh air to enter the room.  For ease of cleaning of the outer glass pane, the window can also be operated as centre-pivot.

The frame and sash are made of high-quality moulded polyurethane around a core of thermally modified timber with a white lacquer finish.  Therefore, giving a maintenance free finish.

Externally the window has maintenance-free cover parts.

Window Sizes
:
External frame
W x H mm:
Effective daylight
areas: m²
Geometric free
area: m²
CK04         550 x 978     0.29     0.39
CK06 550 x 1178     0.37     0.48
FK06 660 x 1178     0.47     0.60
FK08 660 x 1398     0.58     0.72
MK04 780 x 978     0.47     0.58
MK06 780 x 1178     0.59     0.72
MK08 780 x 1398     0.72     0.87
MK10 780 x 1600     0.85     1.01
PK06 942 x 1178     0.75     0.89
PK08 942 x 1398     0.92     1.08
PK10 942 x 1600     1.07     1.25
SK06 1140 x 1178     0.95     1.09
SK08 1140 x 1398     1.16     1.32
SK10 1140 x 1600     1.35     1.54
UK08 1340 x 1398     1.40     1.58

VELUX roofwindows roofwindow roof windows roof window skylight skylights top hung TOPHUNG BOTTOM OPERATED bottomoperated

Specification

  • Background Ventilation (via Ventilation Flap - based on double glazed windows):

    Ventilation
    Capacity
    at 4Pa
    :
    at 8Pa
    :
    at 10Pa
    :
    at 20Pa
    :
    CK04 4.0 l/s 5.7 l/s 6.4 l/s 9.3 l/s
    CK06 4.0 l/s 5.7 l/s 6.4 l/s 9.3 l/s
    FK06 4.8 l/s 6.9 l/s 7.8 l/s 11.3 l/s
    FK08 4.8 l/s 6.9 l/s 7.8 l/s 11.3 l/s
    MK04 5.8 l/s 8.4 l/s 9.5 l/s 13.7 l/s
    MK06 5.8 l/s 8.4 l/s 9.5 l/s 13.7 l/s
    MK08 5.8 l/s 8.4 l/s 9.5 l/s 13.7 l/s
    MK10 5.8 l/s 8.4 l/s 9.5 l/s 13.7 l/s
    PK06 7.1 l/s 10.2 l/s 11.5 l/s 16.6 l/s
    PK08 7.1 l/s 10.2 l/s 11.5 l/s 16.6 l/s
    PK10 7.1 l/s 10.2 l/s 11.5 l/s 16.6 l/s
    SK06 8.5 l/s 12.3 l/s 13.9 l/s 20.1 l/s
    SK08 8.5 l/s 12.3 l/s 13.9 l/s 20.1 l/s
    SK10 8.5 l/s 12.3 l/s 13.9 l/s 20.1 l/s
    UK08 10.0 l/s 14.5 l/s 16.3 l/s 23.5 l/s






    Ventilation
    :
    Equivalent
    Area : mm²
    Geometrical Free
    Area : mm²
    CK**   2600      2800
    FK**   3100      3700
    MK**   3700      4500
    PK**   4600      6100
    SK**   5600      7200
    UK**   6600      10600



    Finishes:
    Internal - White maintenance-free
    Finished with polyurethane lacquer (NCS standard colour: S 0500-N, nearest RAL standard colour: 9003).

    External – Maintenance-free cover parts. 
    Aluminium, dark grey (NCS standard colour: S 7500-N, nearest RAL standard colour 7043).
    Untreated Copper.
    Titanium Zinc.

    VELUX roofwindows roofwindow roof windows window skylight skylights

Technical specification
  • Unique ref.GPU
  • Collection setTop hung
  • CollectionManual bottom operated
  • TypeObject (single object)
  • Date of publishing2019-08-06
  • Edition number5
Related
  • Material mainPolyurethane
  • Material secondaryGlass
  • Designed inDenmark
Classification
  • BIMobject CategoryWindows - Roof Window
  • IFC classificationWindow
  • UNSPSC nameRoofing accessories
  • UNSPSC code301516
  • Uniclass 1.4 CodeJL11
  • Uniclass 1.4 DescriptionRooflights/Roof windows
  • Uniclass 2.0 CodePR-59-72
  • Uniclass 2.0 DescriptionRoof Window Units
  • Uniclass 2015 CodePr_30_59_98_72
  • Uniclass 2015 DescriptionRigid polyurethane frame roof window units
  • NBS Reference Code20-30-72-80
  • NBS Reference DescriptionRoof Window Systems
  • CSI MasterFormat 2014 Code08 62 00
  • CSI MasterFormat 2014 TitleUnit Skylights
  • OmniClass Number23-17 13 23
  • CSI UniFormat II CodeB3020
  • CSI UniFormat II TitleRoof Openings

Region availability

Europe Oceania Asia North America South America
Austria
New Zealand
Turkey
Canada
Chile
Norway
China
United States
Poland
Portugal
Romania
Russia
Netherlands
Serbia
Slovenia
Spain
Sweden
Switzerland
Ukraine
Slovakia
Lithuania
Latvia
Italy
Belarus
Belgium
Bosnia and Herzegovina
Bulgaria
Croatia
Czech Republic
Denmark
Estonia
Finland
France
Germany
Hungary
United Kingdom