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Concept Rooflights
   

SL40 - Slim Roof Lantern

Possibly the best looking roof lantern on the market...?

Contemporary slim aluminium rafter bars, unrivalled thermal performance, energy efficient glazing

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1. Select Lantern Type...
2. Select size...
Length x Width (mm)
3. Select options and delivery area...
* Selecting a roof vent will increase the lead time to approximately 2 weeks. Price includes electric actuator and rocker switch.
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Electric Vents:
Electric Vents: None £0.00
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Summary 

Our roof lanterns are possibly the best looking roof system on the market today.  Thinner, stronger, lighter!  This roof lantern system is engineered to perfection with its superior strength and lightweight slimline aluminium frame section which has an internal width of only 40mm, creating an elegant slimline energy efficient rafter which reduce the sightlines by a massive 30% of its competitors and 70% reduction in width at the ridge.

Our slimline roof lanterns are in a class of their own, with its contemporary modern design and ultra-low sightlines it is the perfect roof lantern system for any orangery or flat roof extension.

The roof lanterns proven design has been BBA tested to ensure maximum strength and structural integrity, designed to withstand 33% greater live snow and wind loads than other competitors.

Our roof lanterns offer a choice of contemporary four-pane or multi-pane styles to cater to your individual property needs and are powder coated to modern stock RAL colours and dual colour if required allowing you to personalise to your own taste.

Key Features 

  • Contemporary roof lanterns in four-pane or multi-pane styles
  • Available in combinations of Anthracite Grey, Jet Black & White
  • Minimalist modern design
  • Ultra-low sightlines
  • High strength interlocking glazing bars
  • Narrow 40mm* rafter bars for minimal intrusion (*internally)
  • Neat ridge system (no ugly bosses or hoods)
  • Energy efficient performance glass with solar control and self clean
  • Overall U-value as low as 1.2W/m2k with double glazed units
  • Standard roof pitch is 25 degrees
  • Optional electric opening roof vents for ventilation
  • Stock sizes only for quick delivery in approx. 5-7 working days
  • Delivered in flat packed kit form for easy installation onsite
  • 10 year guarantee for added peace of mind

Technical Details 

This section provides all the necessary dimensions of our product for use when planning the size of your aperture and upstand detail to ensure that the prepared and fully weathered upstand is correct and ready to accept our roof lantern upon delivery to keep your install 'trouble free'.

It is critical that you familarise yourself with our product, where our measurements are taken from and what is required from the build point of view upon creating the upstand that will receive our product. Also see our 'Crucial Measurements' section for further information.

Please download the Technical PDF to ensure you have a full understanding of the product before ordering.

Key Measurements 

This section is provided to help you understand where our measurements are taken from and how they relate to the size of the upstand required to accept our roof lantern when delivered to ensure that your installation runs smoothly.

How to install... 

Our roof lanterns have been designed with easy installation in mind and feature a unique cleating system to join the rafter bars into the main ridge for a trouble free installation.  We have supplied you with both a downloadable PDF Installation Guide along with a step-by-step Installation Video to help guide you through the all important installation steps.  It really is that easy!

PDFs & Videos 

Question

Answer

1. Where are the sizes measured from?
The sizes shown on our website are the EXTERNAL upstand sizes, to suit a fully weathered upstand of approx. 10mm less on each proportion.
2. What size should my upstand be?
It is good practice to be 150mm in height from the roof deck and usually 100mm wide and also insulated. Also the fully weathered external measurements should not exceed the size of the roof lantern purchased also allowing a 5-10mm tolerance all around.
3. Do you offer bespoke sizes?
Yes, our website has been designed to work with stock sizes only to keep things easy for our customers to choose what they require and have it delivered in a timely manner. Should you have different sizes to work with however, please contact us with your requirements.
4. What colours are the roof lanterns available in?
Any combination of White RAL 9910S, Grey RAL 7016M or Black RAL9005M
5. Do you offer bespoke colours?
Not on our fast turnaround, we only have the stock colours shown on our website. However, we can match a specific RAL colour if required - please email your requirements and we will give you an individual quote and lead time.
6. How quick can I take delivery if I order today?
Delivery is approximately 7 working days from your confirmed order.
7. How will our roof lantern be delivered?
You will be advised by email the date that you will receive your roof lantern. Please note: It will be delivered in two shipments as the frame comes separate to the glass and this is usually over 1 or 2 days.
8. Are the roof lanterns delivered fully assembled or in kit form?
Our roof lanterns are delivered in kit form for easy assembly onsite.
9. Do you offer an installation service?
The way we have designed our website is to be a slick easy way for people to purchase stock size roof lanterns on a supply only basis. however, please contact us and we can give you a price for installation if required.
10. What is the standard pitch of the SL40 roof lantern?
25 degrees
11. What is the difference between the glass options available?
All of our energy saving performance glass units feature a low-e inner pane, argon gas, warm edge spacer bars and solar control outer pane with self clean coating. If you need to maximise the light then choose our Activ Neutral glass, if you are south facing and need to reduce glare then choose our Activ Blue glass and if you are south facing and you are concerned about getting too hot then choose our unique Celsius Elite Blue glass for the ultimate heat blocking.
12. What glass do I choose for maximum light transmission?
Pilkington Activ Neutral
13. What glass do I choose to reduce glare?
Pilkington Activ Blue
14. What glass do I choose for ultimate heat blocking?
Celsius Elite Blue
15. Does the glass have a 'self-clean' coating?
Yes, all of our performance glass units feature a self-clean coating.
16. Can I have opening roof vents?
Yes, you can order an electric roof vent for ventilation. These have a glazed aluminium lid with a PVCu bottom frame and use munting bars to integrate with the glass sections. Please note: These are only available in the 'Multi-Pane' range and will increase the lead time to approx. 2 weeks.

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* To ensure we match the right product size and specifications to your requirements and to provide you with a professional service we will call you to discuss your project in more detail. Tick the contact opt-out option if you do not wish to be called.

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* To ensure we match the right product size and specifications to your requirements and to provide you with a professional service we will call you to discuss your project in more detail. Tick the contact opt-out option if you do not wish to be called.

We're not the cheapest, we work solely on build quality, safety, performance & energy efficiency
For helpful friendly advice, call our dedicated sales team today on: 0116 243 6194
Superior build quality  |  Outstanding performance  |   Ultimate energy efficiency
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