UltraSky Lantern

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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.

Conservatory Features

It doesn’t matter whether you want to create a dining room, kitchen extension – or even a bedroom or bathroom; the Ultrasky lantern will support your creative ambitions and empower you to build a stylish room space that is perfect in every way.

Whatever style of property you own, the Ultrasky lantern will enhance it – meaning you’ll be able to create a traditional or modern effect. Your new flat roof extension with lantern will look exactly the way you had envisioned it and improve your home’s market appeal and value.


The Ultrasky lantern includes the following:

  • Strongest ridge on the market means fewer bars for uninterrupted sight lines
  • Pre-manufactured to your design for less disruption during the build
  • Choice of uPVC or aluminium claddings
  • Reduced risk of condensation
  • No leaks – guarantee

Your new roof lantern will come equipped with extensive glazing that’s thermally efficient. You’ll be able to enjoy your new room during summer without feeling too hot; when the colder weather sets in, your roof will stop heat escaping

Tested and Accredited
Your Ultrasky lantern will have been tested to withstand high wind speeds and tolerate local snow loading. Enjoy a rooflight that's built to last and reward you with strong performance for many years to come.

Your product will include a 10-year manufacturer’s warranty from Ultraframe for your peace of mind. Please speak to your chosen Ultra Installer before installation work commencing to verify your level of guarantee.

Building Styles

The Ultrasky lantern has been designed specifically for flat roofs. Contact your nearest Ultra Installer for more information.

Conservatory Overview

A stylish, strong and flexible rooflight
Rest assured that our Ultrasky roof lantern can respond to your design requirements. Its rectangular shape is available in a range of bespoke sizes that extend from 1000mm x 1500mm through to 4000m x 5850m.

The Ultrasky’s structural strength makes the rooflight slimmer and creates a minimalist design. Its ridge is stronger than an equivalent product; it uses fewer bars and wider spans and returns an IXX value of 2,226Kmm4.

You can also choose between internal uPVC or aluminium undercladdings, which are supplied in ‘white,’ or ‘grey’. Our aluminium top caps are available in ‘chambered white,’ ‘anthracite grey’ or ‘satin black.’


  • Bespoke colours to match doors, windows and decor
  • Available uPVC and aluminium inside and out
  • Unbeatable range of design options


  • Supplied with a range of high-performance glazing
  • Fully insulated aluminium undercladding
  • Thermally broken inside and out
  • Unrivalled thermal performance
  • Thermally insulated eaves rail


  • No drilling or cutting required
  • 25% fewer bars for a faster fit
  • Quickest assembly time
  • Easy and quick to glaze


  • UK’s strongest ridge with an IXX value of 2,226kmm4 for fewer bars and larger spans
  • The strongest lantern on the market
  • Maximum size 4m x 5.85m


  • Superior bar and ridge strength for larger panes of glass
  • 25% fewer bars than conventional glazed roof lanterns meaning better views
  • No bulky radius ends

Thermal Efficiency

Enjoy an orangery, extension or conservatory that behaves just like any other room in your home.

Your thermally efficient rooflight will produce the following rating:
'C' Rating

Weather Tested

  • Sturdiest, most durable gaskets and glazing stops
  • Fewer bars, less potential points of failure
  • Triple layer storm shield at radius end
  • Watertight in winds up to 130mph

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Central RPL

Units 7 – 10 Kelvin Way Trading Estate,
Kelvin Way, West Bromwich,
West Midlands, B70 7TN,
United Kingdom

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