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NBS Source

GPL Top-Hung Roof Window

Verified by manufacturer 6 months ago

VELUX Company Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • QA Certificate

    QA Certificate

    Certificate type

Manually operated top-hung timber roof window. Suitable for roof pitches from 15-55°.

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

Application

For roof pitches between 15-55° (75° with special springs).

Description

Features and benefits:

  • Can be installed in roof pitches 15–55° and up to 75° with special springs.
  • Opens to any positions up to 45° to allow panoramic, uninterrupted views.
  • Meets requirements for emergency escape (except size CK04).
  • The window is opened by means of a handle placed at the bottom sash.
  • Sash can also be rotated 180° and locks in place for the ease of cleaning of the outer pane.


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 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.


Energy efficiency installation collars:

  • Insulation collar – Code BDX: Optimizes the insulation around window frame by preventing heat loss and eliminating cold bridges. BDX 2000 variant 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 EDL: For standard installation into slate and flat roofing materials up to 8 mm thick. Not suitable for interlocking slate.
  • Code EDN: For recessed installation into slate and flat roofing materials up to 8 mm thick. Not suitable for interlocking slate.
  • Code EDW: For standard installation into flat and profiled roofing materials up to 120 mm thick, including profiled sheeting and interlocking slates.
  • Code EDJ: For recessed installation into flat and profiled roofing materials up to 90 mm thick, including profiled sheeting and interlocking slates.
  • Code EDP: For standard installation into plain tiles up to 14 mm thick.
  • Code ZWC: Window profile set to be used in conjunction with on-site weathering for non-standard roofing materials. For further details please contact VELUX.

General information

Color

White

Finish

Painted

Internal frame and sash is either White painted – Code 2 or Lacquered Pine – Code 3 and external cladding available in grey aluminium; colour reference NCS S-7500-N - Code 0, Untreated copper – Code 1, Titanium zinc – Code 3, Painted aluminium – Code 8.

Material

Pine

frames

Aluminium

cladding

Width

550 mm

660 mm

780 mm

942 mm

1140 mm

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Height

978 mm

1178 mm

1398 mm

1600 mm

WarrantyDescription

Ten year

For window and pane

Three year

For electrical items and blinds

Uniclass

Pr_30_59_98_97 Wood frame roof window unitsPrimary

CAWS

L10/480 Roof windows

Product range

Roof window single installation

Specification data - Wood frame roof window units

Standard

BBA Agrément Certificate.

Product performance

-

Whole window U-value

0.86–1.3 W/m²K.

Depending on product option.

Hardware

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

Operation

-

Type

Manually operated.

The window is opened by means of a handle placed at the bottom sash. Sash can also be rotated 180° and locks in place for the ease of cleaning of the outer pane

Accessories

Not required.

Locking handle.

code 028321

Execution

Fixing of wood frames.

Internal frame and sash

White painted.

Code 2

Lacquered 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

Roof pitch

Insert requirements.

Window code

GPL CK04.

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

GPL CK06.

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

GPL FK06.

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

GPL MK04.

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

GPL MK06.

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

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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.

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; 4 mm toughened outer pane.

Type

Not required.

Blackout blind – Code DKL.

Blackout energy blind – Code FHC.

Duo blackout blind – Code DFD.

External awning blind – Code MHL.

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Colour

Not applicable.

As schedule.

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

Energy efficiency installation collars

Insulation Collar – Code BDX 2000.

Not compatible with EDN and EDJ flashings. Includes BFX.

Underfelt Collar – Code BFX 1000.

Compatible with EDN and EDJ flashings only. Includes BFX.

Vapour Barrier Collar – Code BBX 0000.

Flashing

EDL.

For standard installation in slate up to 8 mm thick; roof pitch 15–90°.

EDN.

For recessed installation in slate up to 8 mm thick; roof pitch 20–90°.

EDW.

For standard installation in tiles up to 120 mm in profile; roof pitch 15–90°. Also for interlocking slate, thatch and profile sheeting.

EDJ.

For recessed installation in tile up to 90 mm in profile; roof pitch 20–90°.

EDP.

For standard installation in plain tiles up to 14 mm thick; roof pitch 25–90°.

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Environmental information

Embodied carbon

2.2 kg·CO₂e/kg

Digital objects

Platform Compatible Version Certified to
Revit
-

4

2.1
Download now from NBS National BIM Library

Third party certifications

  • 08/4608 : Product sheet 2: VELUX top hung roof windows
  • CE marked: EN 14351-1:2006 + A2:2016

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