NBS Source
List your products

GGL manually operated, centre-pivot roof window, twin installation

Third party certifications:
  • BBA Agrément Certificate

    Certificate type

  • QA Certificate

    Certificate type

  • BSI Kitemark

    Certificate type

VELUX Company Ltd

Manually operated, centre pivot roof windows for twin installation with 18 mm or 50 mm gap on roof pitches between 15–90°.

Jump to:
+44 (0)1592 778225 www.velux.co.uk
Description

Manually operated, centre pivot roof windows for twin installation with 18 mm or 50 mm gap on roof pitches between 15–90°.

Features:

  • Convenient operation – even with furniture placed beneath the window.
  • Easy to open and quick to close with the top control bar.
  • Low installation allows for more flexibility and better views.

Operation:

  • One pull of top control bar allows background ventilation whilst the window remains securely closed. One further pull opens the window.
  • Rotates 180° and locks in place for ease of cleaning of the outer pane.

Warranty:

  • Ten-year guarantee for windows and panes.
  • Three-year guarantee for electrical items and blinds.

General information
Features

Convenient operation – even with furniture placed beneath the window

Easy to open and quick to close with the top control bar

Low installation allows for more flexibility and better views

Uniclass 2015
Wood frame roof window units (Pr_30_59_98_97)Primary
Specification data - Wood frame roof window units
Product Reference

GGL manually operated, centre-pivot roof window, twin installation

Roof pitch

Insert requirements.

Number of windows in group

Insert requirements.

Distance between side frames

18 mm

Standard frame gap.

50 mm

Codes CK02, CK04 and CK06 only.

Support rafters

Not required

EBY W20 2000

2000 mm long, 18 mm frame gap only.

EBY W27 2000

2700 mm long, 18 mm frame gap only.

EBY W35 2000

3500 mm long, 18 mm frame gap only.

Window -
Window code

GGL CK02

Standard size 550 mm wide x 778 mm high; effective daylight area, 0.22 m².

GGL CK04

Standard size 550 mm wide x 978 mm high; effective daylight area, 0.29 m².

GGL CK06

Standard size 550 mm wide x 1178 mm high; effective daylight area, 0.37 m².

GGL FK06

Standard size 660 mm wide x 1178 mm high; effective daylight area, 0.47 m².

GGL MK04

Standard size 780 mm wide x 978 mm high; effective daylight area, 0.47 m².

GGL MK06

Standard size 780 mm wide x 1178 mm high; effective daylight area, 0.59 m².

GGL MK08

Standard size 780 mm wide x 1398 mm high; effective daylight area, 0.72 m².

GGL PK08

Standard size 942 mm wide x 1398 mm high; effective daylight area, 0.92 m².

GGL PK10

Standard size 942 mm wide x 1600 mm high; effective daylight area, 1.07 m².

GGL SK06

Standard size 1140 mm wide x 1178 mm high; effective daylight area, 0.95 m².

GGL UK04

Standard size 1340 mm wide x 978 mm high; effective daylight area, 0.91 m².

GGL UK08

Standard size 1340 mm wide x 1398 mm high; effective daylight area, 1.40 m².

GGL CK01

Non-standard size 550 mm wide x 698 mm high; effective daylight area, 0.19 m².

GGL FK04

Non-standard size 660 mm wide x 978 mm high; effective daylight area, 0.37 m².

GGL FK08

Non-standard size 660 mm wide x 1398 mm high; effective daylight area, 0.58 m².

GGL MK10

Non-standard size 780 mm wide x 1600 mm high; effective daylight area, 0.84 m².

GGL MK12

Non-standard size 780 mm wide x 1800 mm high; effective daylight area, 0.96 m².

GGL PK25

Non-standard size 942 mm wide x 550 mm high; effective daylight area, 0.27 m².

GGL PK04

Non-standard size 942 mm wide x 978 mm high; effective daylight area, 0.60 m².

GGL PK06

Non-standard size 942 mm wide x 1178 mm high; effective daylight area, 0.75 m².

GGL SK01

Non-standard size 1140 mm wide x 698 mm high; effective daylight area, 0.48 m².

GGL SK08

Non-standard size 1140 mm wide x 1398 mm high; effective daylight area, 1.16 m².

GGL SK10

Non-standard size 1140 mm wide x 1600 mm high; effective daylight area, 1.35 m².

GGL UK10

Non-standard size 1340 mm wide x 1600 mm high; effective daylight area, 1.63 m².

Finish -
Internal frame and sash

White Painted – Code 2

Lacquered Natural Pine – Code 3

External cladding

Grey aluminium; colour reference NCS S-7500-N - Code 0

Untreated copper – Code 1

Titanium zinc – Code 3

Painted aluminium – code 8, colour

Insert RAL or NCS colour reference

Glazing

68

6.8 mm laminated inner pane with low-e coating; 12 mm Argon filled cavity; 3 mm heat strengthened mid pane with low-e coating; 12 mm Argon filled cavity; 4 mm toughened outer pane with easy to clean and low-e coatings.

62

6.8 mm laminated inner pane with low-e coating; 10 mm Krypton filled cavity; 3 mm heat strengthened mid pane with low-e coating; 10mm Krypton filled cavity; 8 mm toughened outer pane with anti-dew coating.

66

6.8 mm laminated inner pane with low-e coating; 12 mm Krypton filled cavity; 3 mm heat strengthened mid pane with low-e coating; 12 mm Krypton filled cavity; 4 mm toughened outer pane with easy to clean and anti-dew coatings.

70

6.8 mm laminated inner pane with low-e coating; 15 mm Argon filled cavity; 4mm toughened outer pane.

70Q

6.8 mm laminated inner pane with low-e coating; 16 mm Argon filled cavity; 4 mm toughened outer pane.

Blinds, Awning and Shutter -
Type

Not required

Blackout blind – Code DKL

Blackout energy blind – Code FHC

Duo blackout blind – Code DFD

External awning blind – Code MHL

External roller shutter – Code SHL

Flying pleated blind – Code FHL

Insect screen – Code ZIL

Roller blind – Code RFL

Roman blind – Code FHB

Solar powered blackout blind – Code DSL

Solar powered blackout energy blind – Code FSC

Solar powered external awning blind – Code MSL

Solar powered external roller shutter – Code SSL

Solar powered pleated blind – Code FSL

Solar powered roller blind – Code RSL

Venetian blind – Code PAL

Colour

Not applicable

As schedule ___

Refer VELUX Blinds and Shutters brochure for available colours and patterns.

Operation

Not required

Electronic

Manual

Codes ZCT 200K and ZOZ 085 – Control rod and adaptor.

Energy efficiency installation collars

Insulation Collar – Code BDX 2011

Includes BFX, for 18 mm gap only.

Underfelt Collar – Code BFX 1000

Vapour Barrier Collar – Code BBX 0000

Flashing

EBL 0021B

18 mm gap between units; for standard installation into slate up to 8 mm thick; roof pitch 15–90º.

EBW 0021B

18 mm gap between units; for standard installation into tiles up to 120 mm in profile; roof pitch 15–90º.

EBP 0021B

18 mm gap between units; for standard installation into plain tiles up to 14 mm thick; roof pitch 25–90º.

EBL 0021C

50 mm gap between units; for standard installation into slate up to 8 mm thick; roof pitch 15–90°; CK02, CK04 and CK06 only.

EBW 0021C

50 mm gap between units; for standard installation into tiles up to 120 mm in profile; roof pitch 15–90º; CK02, CK04 and CK06 only.

ZWC

For standard installation where an on-site flashing is required; roof pitch 15–90°.

Accessories

None

Opening restrictor lock with key – Code ZOZ 010KC S011

Window lock, Code ZOZ 012K1

Standard product features

Support rafters:

Supplied in the same finish as the roof windows.

Product Options

Glazing:

- Code 68:

  • Thermal performance (U-value): 1.1 W/m²K.
  • Sound insulation (Rw): 35 dB.
  • Light Transmittance (Tv): 0.71.
  • Total solar energy transmittance (g): 0.52.

- Code 62:

  • Thermal performance (U-value): 0.92 W/m²K.
  • Sound insulation (Rw): 42 dB.
  • Light Transmittance (Tv): 0.73.
  • Total solar energy transmittance (g): 0.52.

- Code 66:

  • Thermal performance (U-value): 1.0 W/m²K.
  • Sound insulation (Rw): 37 dB.
  • Light Transmittance (Tv): 0.71.
  • Total solar energy transmittance (g): 0.52.

- Code 70:

  • Thermal performance (U-value): 1.3 W/m²K.
  • Sound insulation (Rw): 35 dB.
  • Light Transmittance (Tv): 0.68.
  • Total solar energy transmittance (g): 0.46.

- Code 70Q:

  • Thermal performance (U-value): 1.4 W/m²K.
  • Sound insulation (Rw): 35 dB.
  • Light Transmittance (Tv): 0.81.
  • Total solar energy transmittance (g): 0.63.

Energy efficiency installation collars:

  • Insulation collar – Code BDX 2011: Optimizes the insulation around the window frame by preventing heat loss and eliminating cold bridges. Includes underfelt collar BFX.
  • Underfelt collar – Code BFX: Ensures a weathertight seal between the roof window and the roof.
  • Vapour barrier collar – Code BBX: Provides vapour control and air permeability seal.

Flashing:

Flashings are available in materials and finishes to match roof window cladding.

- Code EBL 0021B:

  • For standard installation into slate and flat roofing materials up to 8 mm thick: not suitable for interlocking slate.
  • 18mm gap between units.
  • Roof pitch 15–90º.

- Code EBW 0021B:

  • For standard installation into flat and profiled roofing materials up to 120 mm thick, including profiled sheeting and interlocking slates.
  • 18 mm gap between units.
  • Roof pitch 15–90º.

- Code EBP 0021B:

  • For standard installation into plain tiles up to 14 mm thick.
  • 18 mm gap between units.
  • Roof pitch 25–90º.

- Code EBL 0021C:

For CK02, CK04 and CK06 size windows only.

  • For standard installation into slate and flat roofing materials up to 8 mm thick: not suitable for interlocking slate.
  • 50 mm gap between units.
  • Roof pitch 15–90º.

- Code EBW 0021C:

For CK02, CK04 and CK06 size windows only.

  • For standard installation into flat and profiled roofing materials up to 120 mm thick, including profiled sheeting and interlocking slates.
  • 50 mm gap between units.
  • Roof pitch 15–90º.

- Code ZWC:

  • Window profile set to be used in conjunction with on-site weathering for non-standard roofing materials.
  • Roof pitch 15–90º.
  • For further details please contact VELUX.

Third party certifications

Additional certifications:

  • CE marked: to EN 14351-1:2006 + AI:2010
  • EN 1627 Class 2 (70Q variant only)
Similar products from VELUX Company Ltd