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Manual bottom operation, Centre-pivot - GGL-B
Manual bottom operation, Centre-pivot - GGL-B
Manual bottom operation, Centre-pivot - GGL-B
Manual bottom operation, Centre-pivot - GGL-B
Manual bottom operation, Centre-pivot - GGL-B

    Manual bottom operation, Centre-pivot - GGL-B

    3.9 out of 5 stars3.9(34 reviews)

    The VELUX bottom-operated, center-pivot roof window GGL-B offers the great essential functionalities of the VELUX brand. Bottom operation is special designed for applications where the window need to be placed in a high position 130-160 cm above floor level.  The roof window that can be installed on roof pitches from 15-90°. 

    • Removable and cleanable ventilation filter protects your home from dust and insects while ventilating.
    • Adjust the bottom handle position to ventilate your home without opening the window.
    • Open the top control bar to the ventilation position for fresh air through a closed window.
    • Easily rotate the window 180° for safe cleaning of the outer glass from the inside.
    • Barrel bolts lock the rotated window into place for safe and easy cleaning of the outer glass from inside.
    • Quickly and easily add blinds by simply clicking them into the pre-fitted brackets.
    • Frame and sash made of laminated pine wood are finished with triple coat. the exterior of the frame and sash is metal-clad and therefore maintenance-free. the window is equipped with an insulating glass unit.
    •  

      Window
      Sizes :
      External frame
      W x H : mm
      Effective daylight
      areas: m²
      Geometric free
      area: m²
      CK02 550 x 778    0.22    0.26
      MK04 780 x 978    0.47    0.53
      MK06 780 x 1178    0.59    0.66
      MK08 780 x 1398    0.72    0.81
      PK06 942 x 1178    0.75    0.83
      PK08 942 x 1398    0.92    1.01
      PK10 942 x 1600    1.07    1.17
      SK06 1140 x 1178    0.95    1.03

      VELUX roof windows roof window roof windows roof window skylight skylights

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

      Ventilation
      Capacity :
      at
      4Pa :
      at
      8Pa :
      at
      10Pa:
      at
      20Pa :
      CK02 – 4.0 l/s 5.7 l/s 6.4 l/s 9.3 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
      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



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


      Finishes:
      Internal -  White-painted finished with triple coat,
      white painted (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) 

    Technical specification
    • Unique ref.GGL-B
    • Product familyCenter Pivot
    • Product groupManual bottom operated
    • TypeObject (single object)
    • Date of publishing2021-08-27
    • Edition number1
    Related
    • Material mainPine
    • Material secondaryGlass
    • Designed inDenmark
    Classification
    • BIMobject CategoryWindows - Roof Window
    • IFC classificationRoof
    • UNSPSC nameRoofing accessories
    • UNSPSC code301516
    • Uniclass 2015 CodeSs_30_30_72_73
    • Uniclass 2015 DescriptionRoof window systems
    • CSI MasterFormat 2014 Code08 61 00
    • CSI MasterFormat 2014 TitleRoof Windows
    • OmniClass Number23-17 13 23
    • OmniClass TitleRoof Windows
    • CSI UniFormat II CodeB3020
    • CSI UniFormat II TitleRoof Openings

    Region availability

    Europe
    Belgium
    Netherlands