Natural air inlet

VELUX GZL 1051 | wooden, 2-glass pivot roof window

✔ Wood | clear lacquered ✔ centre-pivot (top control bar) ✔ 2-panes ✔ Window U-value: 1.3 W/m²K ✔ Glazing U-value: 1.0 W/m²K
2.606,73 kr inc. VAT, excl. shipping
(2.085,38 kr excl. VAT and shipping)
Size chart
ODV-GZL-CK02-1051

Ships within 6-10 business days after receipt of your payment

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Additional products

Flashing for VELUX roof windows Flashing for VELUX roof windows
Insulates around the roof window frame, reducing heat loss and eliminating cold bridges.
1.341,48 kr inc. VAT, excl. shipping (1.073,18 kr excl. VAT and shipping)
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Ships within 1-3 business days after receipt of your payment

Only 1 left in stock. Please inquire for larger quantities.

  • Total cost 3.948,20 kr

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 VELUX GZL is a manual-top-operated centre-pivot wooden roof window with double glazing.

The improved design allows to open and close the window with one hand. The top control bar makes it very easy to open and close the window even with furniture placed directly below. 

GZL window is equipped with integrated ventilation flap. The unique, integrated VELUX ventilation flap lets in fresh air through a dust and insect filter even when the window is closed. Good for rainy days, and ensure a healthy indoor environment.

Features

  • Natural pine with long lasting water-based clear lacquer that protects the wood against dirt and moisture. Matches perfectly with traditional interiors;
  • U value of the window = 1,3(W/m2K), U value of the glass = 1,0 (W/m2K);
  • Double glazing with warm interframe; hardened external pane;
  • Comfortable top control bar for easy operation;
  • Sash rotation by 180° | easy to rotate and clean the outer glass;
  • The unique, integrated ventilation | air flow even when window is closed;
  • Dust and insect filter;
  • Thermo Technology | transfers less energy and keeps your home warm;
  • Additional seal;
  • High quality pivot hinges for smooth operation;
  • Suitable for roofs with pitches between 15 and 90 degrees (when fitted with correct flashing);
  • Wide range of accessories;
  • Straightforward blind installation with patented mounting brackets;
  • 10 years warranty period.

Standard energy glazing (--51)

This standard 2-panes glazing comes with a toughened outer pane for strength. Inner glass with low emission coating. Space between panes filled with inert gas - argon.

Flashings

VELUX flashing: do I really need it?

Flashings are essential for the correct installation of roof windows. Precisely designed flashing details ensure a durable and neat fit with the roofing material used. The purpose of flashing is to ensure good drainage away from the window and to provide protection from the elements.
VELUX offers a range of flashings designed for different roofing materials and provide two options for installation height (standard and recessed).

VELUX offers a range of flashings designed for different roofing materials and provide two options for installation height of the roof window

VELUX flashing: standard or recessed installation?

Recessed installations offer a more sleek, streamlined appearance, sitting 40mm deeper in the roof structure. Recessed installations also offer greater energy efficiency, and when installed with the appropriate VELUX insulation collar actually offer a lower certified u-value, saving energy and providing architects with greater design flexibility.

EDZ 1000 EDW 1000 EDT 1000 EDJ 1000 EDN 1000 EDL 1000 EDS 1000 EDB 1000
Underfelt collar BBX
Included Included Included Included Included Included Included Included
Installation
Standard Standard Standard Deeper Deeper Standard Standard Standard
Purpose (type of roofing material):
profiled from 1.5 to 4.5 cm height profiled from 1.5 to 12 cm height flat & thick tiles from 1.5 to 4 cm height profiled from 1.5 to 9 cm height  slate, flat roofing materials up to 1.6 cm high (2 x 0.8 cm) slate, flat roofing materials up to 1.6 cm high (2 x 0.8 cm) side parts as layered pieces without standing seams bituminous shingles, flat roofing materials up to 1.6 cm high (2 x 0.8 cm) side parts continuous with standing seams slate, flat roofing materials up to 3.8 cm high (2 x 1.9 cm)
Fitting for roofing material:
Interlocking panel, flat roof tile, flat cremone, reform panel, Frankfurt panel, Taunus panel, flat tile, Heidelberg panel, plain tile in crown covering Monastery tile, monastery tile, monk and nun, Florento tile, Mistral tile, Toledo tile as well as thatch, straw, corrugated sheets 5-, 6-, 8-flute, Berlin wave Koramic Wienerberger Orea 9, Monier Braas Turmalin, Braas Teviva, Braas Reviva, Creaton Domino, Nelskamp Nibra, Wienerberger Koramic Acuta, Erlus Linea and many others. Interlocking tiles, flat roofing tiles, flat clay tiles, reform panels, Frankfurt panels, flat tiles, Heidelberg panels, corrugated sheets 5-, 6-, 8-wave, Berlin wave, plain tiles in crown and double roofing Slate (e.g., rectangular double roofing template), wood shingles, roofing felt, roofing sheets, bituminous shingles, bituminous sheets Slate (e.g. German and old German roofing), wooden shingles, roof panels Double roofing plain tile
Installation type and installation range:
Standard,
suitable for 20°-90° roof pitches
Standard,
suitable for 15°-90° roof pitches
Standard,
suitable for 20°-90° roof pitches
Recessed,
suitable for 20°-90° roof pitches
Recessed,
suitable for 20°-90° roof pitches
Standard,
suitable for 15°-90° roof pitches
Standard,
suitable for 15°-90° roof pitches
Standard,
suitable for 25°-90° roof pitches
Additional insulation products (sold separately):
Insulation frame VELUX BDX 2000 for standard flashings,
and vapour barrier collar VELUX BBX
Insulation frame VELUX BDX 2000F for recessed flashings,
and vapour barrier collar VELUX BBX
Insulation frame VELUX BDX 2000 for standard flashings,
and vapour barrier collar VELUX BBX

 

Technical specification

Technical specification: GZL 1051
Window U-value: 1,3 W/m²K
Glazing U-value: 1,0 W/m²K
Rw coefficient: 29 dB
Air permeability: Class 3
Glazing: 2-panes
Inert gas filled with panes:  Argon
Total solar energy transmittance, g 0,66
Light transmittance, τv 0,80
UV transmittanceτuv 0,32
External glass toughened: +
Interior color: Pine
Exterior color: Gray, RAL 7043
Warranty: 10 years

Roof windows

Category:
Standard Plus
Material:
  • Wood | clear lacquered
Opening:
  • centre-pivot (top control bar)
Glazing:
2-panes
Window U-value:
1.3 W/m²K
Glazing U-value:
1.0 W/m²K
Control:
Manuall

VELUX glazing technical data

Glazing (--51) (--61) (--64) (--70) (--68) (--66) (--62) (--62D) (--67) (--69) (--70Q) (--82) (--15)
Thermal transmittance
W/m2K
1.0 0.6 0.6 1.0 0.7 0.6 0.5 1.0 0.5 0.7 1.0 0.3 0.7
Amount of
chambers
1 2 2 1 2 2 2 1 2 2 1 4 2
Warm TGI spacer
Inert gas
filled panes
Argon Argon Argon Argon Argon Argon Krypton Krypton Krypton Argon Argon Krypton Argon
Toughened
outer pane
Laminated opaque
inner pane
X X X
Safety class X X X P2A P2A P2A P2A P2A P2A P2A P4A P2A P2A
Ornamental X X X X X X X X X X X X X
Enhanced noise
reductiont
X X X X X X
Easy-to-clean
coating
X X X X X X X X X
Anti-dew effect X X X X X X X X X
Sound insulation
Rw (dB)
31 32 35 35 35 37 42 44 38 35 35 37 35

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