Ultra Sky Roof Lantern

Manufacturer part number: UFUS001
Delivery date: 1 - 2 Days **After Lock Down Restrictions Lifted**

Please choose from Sizes, Colour & Glass Options Above. 

Please also note that lanterns of a certain size may require an extra central support bar. If you are in any doubt about the configuration of your product please call or email us with your sizes for a drawing like below to be emailed to you.


UltraSky Large Roof With Central Bar

  • Rectangular double ended roof lights with a width from 1000-2000mm and a length from 1500-4000mm*
  • 25 degree fixed pitch to all four sides
  • Glazing bar top in either PVC (white) or Aluminium
  • Maximum uninterrupted sight lines with minimum number of bars
  • We have selected the 'Conservaglass Blue' product which outperforms most other glass options in all areas.

*Please note width and length dimensions are always defined as to the external face of the timber kerb that Ultrasky products sit on (not supplied and recommended to be 150mm high x 70mm wide)

Our Lanterns are designed to fit on a timber kerb installed inside the roof. This is usually 150mm high x 70mm wide.

The set-out dimensions of our roof lanterns are measured to the external wall of the timber kerb and NOT the size of the cut-out in the flat roof.

In most cases therefore the dimensions of the lantern are calculated as follows:

Length = Length of hole + (2 x Kerb Width)
Width = Width of hole + (2 x Kerb Width)


Hole 1000mm x 1500mm
Kerb Width 70mm

Overall Dimensions of Lantern: 1140mm x 1640mm

We can offer any size of roof lantern you require so you can either choose the size of lantern first and then cut out the hole in the roof to fit or you can order bespoke sizes to fit the hole.

For full installation instructions download the detailed Installation Guide.


  • 1 Insulated End Caps
  • 2 Thermally Separated Top Cap Clips
  • 3 High Performance Ridge Thermal Breaks
  • 4 Insulated Glazing Support Trims
  • 5 Thermally Broken Eaves Rails
  • 6 Thermally Broken Under Cladding

UltraSky Lantern Roof Light

With fewer and slimmer bars than other systems, the Ultrasky Lantern has the flexibility to respond to your design aspirations. If you're building a flat roof extension with lanterns, such as a house extension or orangery, you are sure to create a sense of interior space.


 Ultrasky Brochures


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