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

Triple Glazed Rooflights Share
10 year warranty

Starting from £1,328.00 (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
All of our products come with the following features

Duplus Triple Glazed Rooflights

Our contemporary styled, triple glazed rooflight for flat and pitched roofs incorporates structural silicone glazing, ensuring a complete factory-finished, fully watertight product with a high quality and elegant appearance.

Unlike traditional ‘stepped edge’ glass rooflights (where the outer edge of the glass is exposed and consequently vulnerable to breakage), our rooflights fully enclose the triple glazed unit within the perimeter framework to eliminate this risk.

Glazing Specification

These rooflights benefit from state-of-the-art ‘Triple’ glazing to achieve a centre pane U-value of 0.6 without adding any additional weight to the unit. We also offer a high-performance solar control to minimise solar gain (g) and maximise light transmittance (Lt).

Advanced Features

Duplus triple-glazed skylights are available with clear toughened safety glass as standard.

The following additional options are available:

  • Blue tinted glass
  • Bronze tinted glass
  • Grey tinted glass
  • Obscure finish for privacy
  • High-performance solar control

Easy Installation

Our triple-glazed fixed roof lights are easy to install. An internal perimeter gasket allows the rooflight to be placed directly on top of the builder’s kerb, without the need for site-applied silicone. The unit is then screwed to the builder’s kerb externally and a matching cover clip is then applied to conceal the fixings.



Yes, we do provide triple-glazed options on roof lanterns and other types of rooflights. Please send us a quote request, call us on 0116 2610 710 or email sales@duplus.co.uk

Material Specifications & U-Value

Duplus triple-glazed roof windows satisfy the thermal performance criteria defined in the Building Regulations and achieve high resistance to condensation under normal conditions. True U-value and Ud-values are available upon request.

Tested for weather tightness to BS EN 14351-1:2006 +A1:2010 clauses 4.2, 4.5 and 4.14 – Test reports are available in our technical section.

The extruded aluminium perimeter frame is powder-coated RAL 7016 dark grey matt or RAL 9005 black matt as standard. Other RAL colour options are available upon request.

As standard on all triple glazed units, we incorporate a clear low ‘E’ glass achieving a centre pane U-value of 0.6 W/m²K. Also available is our double-glazed fixed rooflight version

Delivered FULLY ASSEMBLED. No need for time-consuming assembly on-site – helping to reduce your overall costs. Significantly higher security compared to kit systems.

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

For further information and our full terms and conditions, pleasesee our Customer Services page.

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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).