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3D Media

3D Media: View our products in 3D. Spin them round and view them from all angles.

Evo 3D Rooflight
Evo 3D
Bespoke 3D Rooflight
Bespoke 3D
Flat 3D Rooflight
Flat 3D
Conservation 3D Rooflight
Conservation 3D

About Accoya

For window frames, Accoya® wood is the material of choice. Not only does it have extremely low thermal conductivity but it matches or exceeds the durability and dimensionally stability of the best tropical hardwoods.

Access & Escape

What is an access & escape ?


Some industry related articles and information


Extensive laboratory and field testing by leading institutes around the world (including in New Zealand, USA, UK, Sweden, Malaysia, Indonesia, Russia, the Netherlands and Japan) has shown the performance of acetylated wood to be extremely reliable.

Significantly enhancing durability and stability of fast growing, abundantly available wood species, Accoya® provides compelling environmental advantages.
Cellulose is a major structural ingredient of wood but it is also a major food source for several different insects and decay fungi and makes a great shelter for others, too.
Dimensional stability can be defined as the degree to which a material maintains its original dimensions when subjected to environmental changes.
Accoya® wood has been thoroughly tested for stability, durability, UV resistance, paint retention and in-ground conditions to ensure optimal performance.

Bespoke Skylight & Glazing Solutions

No matter how ambitious your project, we have the talent and expertise to bring your plans to life. Contact us to discuss your requirements, and we�ll create a solution that fits the brief perfectly.

CE Compliance

From 1st July 2013 under the Construction Product Regulation 2011 (CPR) it is mandatory for manufacturers to apply CE marking to any of their products which are covered by a Harmonised European Standard or European Technical assessment (ETA).

Center Glazing Bars

Center Glazing Bars.

Coastal Rooflights

Rooflights in a coastal location need special attention when it comes to paint coverings. Please view some of the recommendations here.

Conservation Installation Viewer

Conservation Rooflight Packs

Lumen Rooflight Packs are designed to reward customers who purchase the blinds & flashing kits with their rooflight order. Available for all 12 conservation rooflight sizes, the Lumen Packs offer a significant discount against buying as separate items.

Conservation Rooflights

The rooflight is an ingenious concept that introduces natural light into a building discretely but effectively. They provide an even distribution of light to large low-level structures and can illuminate the dark areas in a room that windows cannot.

Contact Form

General contact form


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Download Brochure

Download Brochure

Download Brochure


Accoya windows and rooflight documents to download.


Click here to download our Lumen rooflight brochure, installation and section details, information concerning Pilkington glass, and information concerning the electric mechanisms.


A range of extras to personalise and enhance your roof windows. Includes blinds, different manual and electric opening mechanisms, and a range of different liner materials to suit your internal design.

Lead flashing
Linking Bars
Linking bars to join 2 or more windows together.
Access & Escape
Opening Mechanisms

Evo Rooflights

A stylish roof window for our customers who are seeking a more modern look. It sits close to the tile line, and looks incredibly stylish.



Flat Roofs

A specially designed raised plinth enables our conservation design to work on flat roofs, and roofs with a pitch of less than XX degrees.


Our rooflight image gallery shows a selection of internal and external applications to help you with you choice.

Glazing Bars

Glazing bars

Guarantee Detail

Guarantee Detail

Guarantee Detail

Heritage Rooflights

The Lumen Heritage rooflight has developed from our highly successful Lumen Conservation rooflight which in turn was a faithful replica of the traditional Victorian cast iron skylight used in many Listed buildings throughout the country.


Click here to find out a bit more about who we are and the heritage behind the Lumen brand. You might be surprised to find that we have a history working with metal that stretches back to 1893


Click here to view our Lumen skylight installation viewer. This will show you a brief guide about how our rooflights are fitted into your roof.

Installation Detail

Installation Detail

Installation Gallery


Liner Options

Linking Bars


You may find some of these organisations of use, particularly if you are working with traditional or Listed buildings.

Lumen Planus Accoya Brochure

Download the Lumen Planus Accoya Brochure.

Lumen Planus Accoya Flat Roof Windows

Lumen Rooflight make and supply a range of flat roof windows and skylights. We now offer the rooflight frames made from Accoya. These sky lights and roof lights are far more durable and last far longer than most traditional materials.

Lumen Planus Accoya Products

Lumen Planus Accoya Products

Lumen Planus Accoya 900
Lumen Planus Accoya 900
Lumen Planus Accoya 600
Lumen Planus Accoya 600 made with Accoya wood. Durable and made to last the Lumen Planus Accoya made rooflights and skylights are stable and sustainable.
Lumen Planus Accoya 1200
Lumen Planus Accoya 1200
Lumen Planus Accoya 1500
Lumen Planus Accoya 1500
Lumen Planus Accoya 1800
Lumen Planus Accoya 1800


Have you seen us in the media?

Lumen Video
Pilkington Activ™
3D Media
3D Media: View our products in 3D. Spin them round and view them from all angles.


This area contains a selection of articles both old and new for our Lumen range of rooflights. Have a read through to find out about other projects, general rooflight information and weather performance testing.


Opening Mechanisms


Extensive laboratory and field testing by leading institutes around the world (including in New Zealand, USA, UK, Sweden, Malaysia, Indonesia, Russia, the Netherlands and Japan) has shown the performance of acetylated wood to be extremely reliable.

Pilkington Activ self clean glass

Pilkington Activ self clean glass

Pilkington Activ self clean glass

Privacy Policy

Please review our Privacy Policy.

Questions About

Questions About

Questions about

We have divided up our questions and answers into separate categories to help you find your answer quicker. Hopefully the website will have provided all the information that you need but if not you are sure to find something in this section.

Buying a rooflight
Choosing a rooflight
Installing a rooflight
Maintaining a rooflight
Using a rooflight

Sale Items

Occasionally we have a few roof windows in our factory that are either ex-demonstration or were produced to an older specification. Rather than have these hanging around gathering dust, we prefer to offer these at discounted rates.


Sales information


Don't just take our word for it. Find out what our customers are saying about our products and the service we provide. If you would like to add a comment on our testimonials page, please email your comments or images to


Why Lumen

Why Lumen ?

Lumen manufacture we dont just sell products. You can be sure our rooflights and skylights are made to the most exacting standards. Tested to give you confidence that by installing a Lumen rooflight you are installing a quality product.

Energy Efficiency
How environmentally friendly is a product ?
Low Profile Design
Domestic conversion is not always suitable.
Personal Service
High standards are what we provide our customers.
Quality Components
We monitor our quality processes very closely.