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The Walk-on Rooflight

Unieke ref.: ufmw_skylight
Fabrikant: Vario by VELUX
Product familie: World Class Rooflights
Product groep: Bespoke Flat Rooflights
Publicatiedatum: 2020-06-12
Editie nummer: 2
Type: Object (enkelvoudig object)
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If you’re looking to enrich the room below your roof terrace with some delightful daylight designs, then our walk-on window is for you. The walk-on window adds value above and below, providing a pretty feature in your roof terrace and flooding the room below with lots of beautiful natural light. Choose the perfect shape and size for your light-filled vision, then add to your custom design with functional features such as an anti-slip pane, which ensures that it will not be dangerous to walk on the product when your roof terrace is wet. 

Whether it’s letting the light in from the floor above or creating a stylish daylight design that compliments your roof terrace, this walk-on window does it all.

Key Selling Points

  • Durable walk-on glazing for roof terraces and interior flooring
  • Fully bespoke sizes to suit your space and style, from 250 mm to 2000 mm with an impressive max of 2 m2 edge-to-edge view of the skies above
  • Energy efficiency of Uw 2.0 W/(m2K) according to EN 14351-1, and  and with a Ug value of 1.3 
  • All our rooflights come with a laminated inner glazing as standard, for superior safety in the unlikely case of breakage
  • Includes a 150 mm insulated wooden upstand

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How to specify Vario by VELUX rooflights

  • Clear Internal - clear internal equals the daylight you get once the product is installed
  • Structural Opening - the structural opening (hole in the roof) has to be +30mm larger than the clear internal for both the width and length
  • External frame measurement - this measurement is +250mm larger than the clear internal for both the width and length

Example of a Vario by VELUX rooflight with the clear internal measurement of 2000 x 1000. The structural opening/"the hole in the roof" is 2030 x 1030 and the external frame measurement is 2250 x 1250. 

Size - Fully customisable flat roof range 

  • Fixed & Opening rooflights can freely be configured between 250mm to 3000mm, with the max clear internal of 4 sqm.
  • Walk-on rooflights can freely be configured between 250mm to 2000mm, with the max clear internal of 2 sqm.
  • Each module of the Unlimited rooflight can freely be configured between 250mm to 3000mm, with the max clear internal of 4 sqm.
  • Round rooflights can freely be configured between ø900mm to ø1350mm

Rooflight types:

  • Fixed, Opening, Walk-on, Walk-on with Anti-slip modular and Round
  • 2-layer & 3-layer glazing - all rooflights come with laminated inner pane
  • All rooflights come with an insulated wooden upstand (except Round)
  • Sun coating available
  • Rain and wind sensor available


  • Internal upstand surface and top - Waterproof plywood, waterbased white coating (RAL9010, gloss 30)
  • External upstand surface - Waterproof plywood untreated
  • Frame surface - Aluminium frame (5mm) with a durable powder coating of either Jet Black (RAL9005, gloss 30) or Traffic grey (RAL7043, gloss 30)

Find real-time prices and start your rooflight configuration -

Technical values -  find our glazing table with all our rooflight technical values under "Technical descriptions"

Primair materiaal: Glass
Secundair materiaal: Aluminium
Ontworpen in : Denmark
Vervaardigd in : Lithuania

BIMobject categorie: Ramen - Dakraam
IFC classificatie: Window
UNSPSC naam: Fixed skylights
UNSPSC code: 30171801
Uniclass 1.4 Code : JL11
Uniclass 1.4 Beschrijving: Rooflights/Roof windows
Uniclass 2.0 Code : PR-59-72-02
Uniclass 2.0 Beschrijving: Aluminium Framed Roof Window Units
Uniclass 2015 Code : Pr_30_59_98_03
Uniclass 2015 Beschrijving: Aluminium frame roof window units
NBS Reference Code : 59-72-02
NBS Reference Beschrijving: Aluminium Framed Roof Window Units
CSI MasterFormat 2014 Code: 08 60 00
CSI MasterFormat 2014 Title: Roof Windows and Skylights
OmniClass nummer: 23-17 13 23
OmniClass Titel: Roof Windows
CSI UniFormat II Code: B3020
CSI UniFormat II Title: Roof Openings
Dit product is beschikbaar in :
  • Ireland
  • Isle of Man
  • United Kingdom

BIMobject SEEK Properties

Windows - Roof Windows

Naam Waarde
Angle 5 deg — 15 deg
Application daylight ; Roof terrace ; Walk-on
Cladding - Exterior N/A
Cladding - Interior N/A
Colour Exterior RAL9005 (Jet black) ; RAL7043 (Traffic grey)
Colour Interior RAL9010 (Pure white)
Depth 150 mm — 600 mm
Frame Material Aluminium (5 mm)
Glass Plane Location 150 mm minus thickness of roof material
Glazing Type
Height 250 mm — 2000 mm
Installation Style Manual installation
Internal Frame Material Waterproof plywood ; Insulation ; Vapour Barrier
Material Glass ; Aluminium ; Wooden upstand
Method Of Operation Fixed
Number Of Windows In Unit 1
Weight 100 kg — 500 kg
Width 250 mm — 2000 mm
Window Style Fixed Walk-on Flat Roof Rooflight




This property set allows objects to be COBie UK BIM Level 2 classified

Naam Waarde
Material Glass ; Aluminium ; Wooden upstand