Top Operated Pinewood low pitch Centre-pivot roof window - GBL

VELUX roof windows

Top Operated Pinewood low pitch Centre-pivot roof window - GBL

Name: Top Operated Pinewood low pitch Centre-pivot roof window - GBL
Rating: 4.2 (6 reviews)

4.2(6 reviews)

GBL is a manually operated centre pivot specially designed roof window that together with the special flashing EDG can be installed in roof pitches down to 10°. Apart from this, the window have almost same specifications and functions as standard roof window GGL and is centre-pivoted and operated with a full-width control bar on the ventilation flap of the top sash. The ventilation flap allows fresh air to enter the room through a dust and insect filter.

Frame and sash made of laminated pine wood and ventilation flap made of pine wood are all finished with triple coat.

The exterior of the frame and sash is metal-clad and therefore maintenance-free.

window Sizes:	External frame W x H : mm	Effective daylight areas: m²	Geometric free area: m²
CK04	550 x 978	0.29	0.34
MK04	780 x 978	0.47	0.53
MK06	780 x 1178	0.59	0.66
MK08	780 x 1398	0.72	0.81
PK04	942 x 978	0.60	0.66
SK01	1140 x 698	0.48	0.54
SK06	1140 x 1178	0.95	1.03

VELUX roofwindows roofwindow 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
CK04	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
PK04	7.1 l/s	10.2 l/s	11.5 l/s	16.6 l/s
SK01	8.5 l/s	12.3 l/s	13.9 l/s	20.1 l/s
SK06	8.5 l/s	12.3 l/s	13.9 l/s	20.1 l/

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

Finishes:
Internal - White-paintedFinished with triple coat,
White Paint (NCS standard colour: S 0500-N, nearest RAL standard colour: 9003).

External – Maintenance-free cover parts.
Aluminium (NCS standard colour: S 7500-N, nearest RAL standard colour 7043).

Technical specification

Unique ref.GBL
Product familyCenter Pivot
Product groupTop operated
TypeObject (single object)
Date of publishing2021-08-31
Edition number1

Links

Product urlhttps://contenthub.velux.com/api/public/content/6bcee-cbc06-d347b_downloadOriginal?v=5575e79a
Installation instructionshttps://contenthub.velux.com/api/public/content/product-guide_454701?v=4470efc2
Product certificationhttps://www.velux.com/ce-marking
Technical descriptionhttps://contenthub.velux.com/api/public/content/6bcee-cbc06-d347b_downloadOriginal?v=5575e79a

Material mainPine
Material secondaryGlass
Designed inDenmark

Classification

BIMobject CategoryWindows - Roof Windows
IFC classificationWindow
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	Asia	Oceania
Belgium	China	New Zealand
Bosnia and Herzegovina	Türkiye
Bulgaria
Croatia
Czech Republic
Denmark
Estonia
France
Hungary
Italy
Latvia
Lithuania
Netherlands
Norway
Poland
Portugal
Romania
Serbia
Slovakia
Slovenia
Spain
Sweden
Ukraine
United Kingdom