FREE UK DELIVERY (Excl. Scotland, West Wales, Devon and Cornwall)

Large Roof Lanterns – Low Pitch 3.5m to 5.8m Lengths Share
10 year warranty

Starting from £3,534.00 (Excl. VAT)

Customise & buy

Please provide external kerb dimensions.
Other colours, sizes and quantities available on request.

Stock items are usually delivered within 1-2 days
(*subject to availability)

FREE DELIVERY (Excl. Scotland, West Wales, Devon and Cornwall)

£1,398.00 + VAT
Secured by design Secure by Design - Building regulations Part Q compliant solution available, please call: 0116 2610 710
All of our products come with the following features

Duplus Large Roof Lanterns (3.5m – 5.8m)

If you’re looking for a large lantern rooflight with ultra-slim glass to glass joints, then this is the ideal solution. Designed specifically for large size requirements between 3500mm and 5800mm in length.

Our accredited structural silicone glazing techniques allow a design identical to our standard roof lanterns but with the introduction of a center ultra-slim rafter, without the requirement for internal framework to the hips or ridge.

When looking up, the external hip and ridge cappings are designed to remain hidden. This glass to glass joint finish, creates a contemporary aesthetic, stunning ’frameless’ appearance and is a key benefit when choosing a large lantern rooflight for your project.

Advanced Features

Our 3.5m – 5.8m roof lanterns are double glazed in clear HEATSOAKED toughened safety glass as standard.

We offer a range of tints:

  • Blue tint
  • Bronze tint
  • Grey tint

Choose from an obscure finish for privacy or high-performance solar control to minimise solar gain (g) and maximise light transmittance (Lt).

Unlike traditional ‘stepped edge’ glass lanterns where the outer edge of the glass is vulnerable to breakage, our larger lantern rooflights fully enclose the double glazed units within the perimeter framework to eliminate this risk. The top surface of the double glazed unit is flush with the external face of the perimeter frame to allow rainwater to disperse rapidly, minimising cleaning and maintenance requirements.


Material Specifications & U-Value

The extruded thermally broken aluminium perimeter frame is powder-coated RAL 7016 Anthracite grey matt externally and RAL 9910 white matt internally as standard. External hip and ridge cappings are fitted for aesthetics and are powder coated RAL 7016 Anthracite grey matt to match the external perimeter frame at the base of the lantern rooflight. Other RAL colour options are available upon request.

As standard on all our double glazed products, units incorporate HEATSOAKED clear low ‘E’ glass achieving a centre pane U-value of 1.1 W/m²K. Please refer to our FAQ section for an explanation of heatsoaked glass.

Delivered FULLY ASSEMBLED. No need for time-consuming assembly on-site. Significantly higher security compared to kit systems.

Available without external cappings for a truly frameless external appearance. We would recommend the caps as these provide added protection to the vulnerable edge of the glass units.

Also available as a Secure by Design (Part Q)enhanced security variant.

This product is suitable for installation via mechanical means with purpose-designed lifting accessories available for hire from Duplus.

View All Our Roof Lanterns >>

“Very friendly and helpful customer service throughout the purchasing process. Very nice and good quality rooflights!”
Why Duplus?
Over 60 years of experience
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Delivery or collection

All of our rooflights can be delivered around the UK, or you can collect from our factory in Leicester.

Stock items delivered within 48 hours (subject to availability).

Custom sizes normally 20-25 working days (subject to workload at the time of ordering).