Aluminium Roof Lanterns | Skylights

Premium Roof Lanterns: Illuminating Excellence

At Direct Trade Windows, we offer top-tier, pre-fabricated roof lanterns designed for swift and straightforward installation.

Our in-house manufacturing facility is where the magic happens. Our skilled team of engineers oversees the entire production process, guaranteeing exceptional quality from start to finish.

Our roof lanterns boast:

Elegant, slim profiles – Crafted for seamless integration with contemporary and traditional aesthetics.
Hassle-free fitting – Sleek design enables rapid installation, often completed within hours.
Bespoke options – An array of custom designs and finishes to complement various architectural styles.

Impressive performance – Rigorously tested for optimal energy efficiency and robust weather resistance.

Smart Aliver Orangery Roof

The Aliver Orangery Roof system from Smart has been developed to deliver all the performance and aesthetic benefits of a modern aluminium solution, offering clean, slim lines to provide a strong, durable, secure and low maintenance solution for orangery roofs.

The system’s elegant design ensures that the glass area is maximised, creating a light and airy feel, combined with a minimalist structure to ensure uninterrupted views.

Providing a traditional 25° pitch, the elegant roof system has been designed to incorporate standard 28mm double glazed units, with the thermally-broken aluminium profiles combining to deliver outstanding energy efficiency and thermal performance.

Elegant design and slim sightlines
Suitable for both contemporary and traditional designs
Traditional 25° pitch
Bespoke roof crown and brackets available
Accepts 28mm double glazed units
Straight-cut profile fabrication

An elegant roof lantern extension with black framing, enhancing natural light in the living space.

Technical Specifications
Colours & Finishes

Technical Specifications

Smart Systems Aliver 5000 Roof Lantern — Technical Specifications

Parameter	Specification
System	Smart Systems Aliver 5000 aluminium roof lantern
Thermal Performance	Overall U-value from 1.2 W/m²K (dependent on glazing selection)
Centre-Pane U-value	From 1.0 W/m²K with high-performance glazing
Max Ridge Height	Configurable — pitch adjustable between 20° and 40°
Max Span	Up to 6,000mm × 3,000mm without intermediate supports
Glazing Units	24mm–36mm sealed double or triple glazed units
Glazing Safety	Toughened outer pane + toughened laminated inner pane (BS EN ISO 12543)
Frame Material	Thermally broken aluminium — continuous polyamide thermal break
Opening Vents	Manual or electric opening vent options — positioned on long or short sides
Weather Performance	Tested to BS EN 12208 (water tightness) and BS EN 12210 (wind resistance)
Drainage	Concealed internal drainage channels — water directed to external downpipe
Finishes	Marine-grade powder coat — any RAL colour, dual colour available
Colour Guarantee	Minimum 25-year colour guarantee

Glazing Options

Standard Double Glazed (24mm) — 28mm unit with low-E coating and argon fill, U-value ~1.4 W/m²K
High-Performance Double Glazed (28–30mm) — Enhanced low-E with warm edge spacer, U-value ~1.1–1.2 W/m²K
Triple Glazed (36mm) — Premium thermal performance, U-value from 0.7 W/m²K centre pane
Self-Cleaning Glass — Pilkington Activ coating — photocatalytic outer surface reduces roof cleaning
Solar Control Glass — Reduces solar gain for south-facing or large-format lanterns

Glass Options for Aluminium Roof Lanterns

Glass specification varies by project. We work with your requirements to select the optimal glazing — balancing thermal performance, solar control and aesthetics for your aluminium roof lanterns. Speak to our specification team for recommendations tailored to your project.

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Colours & Finishes

Frame & Finish Options

Roof lanterns and rooflights are most commonly specified in anthracite grey (RAL 7016) or jet black (RAL 9005) to complement contemporary flat-roof extensions.

Anthracite Grey (RAL 7016) — The most popular choice, complementing contemporary flat-roof architecture
Jet Black (RAL 9005) — Bold, dramatic finish for modern extensions
Pure White (RAL 9010) — Clean, classic finish for traditional properties
Any RAL Colour — Full RAL Classic palette available to specification
Dual Colour — Different internal and external frame colours available on all products

Powder coating is applied in-house to marine-grade standards, with a minimum 25-year colour guarantee and resistance to fading, chalking and corrosion.

FAQ's About Our Roof Lanterns

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What are the key features of your Roof Lanterns?

Our Roof Lanterns have slim sightlines, are tested for energy efficiency and weather resistance, and offer easy installation with a sleek design. We also provide a range of bespoke designs and colours to choose from.

Are roof lanterns a good idea?

Roof lanterns are an excellent choice for homeowners looking to increase natural daylight and create a sense of spaciousness. They can significantly improve the aesthetics of your property, add value, and potentially reduce energy costs by maximising natural light.

Do I need permission for a roof lantern?

In many cases, roof lanterns fall under permitted development rights. However, it's always best to check with your local planning authority, especially if you live in a conservation area or listed building. Our team can offer guidance on navigating planning requirements.

Tell me more about the Aliver Orangery Roof system from Smart.

The Aliver Orangery Roof system is a modern aluminium solution that maximises glass area and offers an elegant, minimalist structure for uninterrupted views. It's suitable for both contemporary and traditional designs and incorporates standard 28mm double-glazed units for outstanding energy efficiency.

Can the Aliver Orangery Roof be customised?

Yes, the Aliver Orangery Roof system offers bespoke roof crown and brackets, allowing you to tailor it to your specific design preferences.

How much does a lantern roof cost?

The cost of a roof lantern varies depending on size, design, and specifications. For an accurate quote tailored to your specific requirements, please contact our team. We offer a range of options to suit different budgets and architectural styles.

How do roof lanterns impact energy efficiency?

Modern roof lanterns can actually improve your home's energy efficiency. Our products feature thermal breaks and high-performance glazing, which help regulate indoor temperature. This can potentially reduce heating and cooling costs while flooding your space with natural light.

Are roof lanterns prone to leaking?

When properly installed and maintained, high-quality roof lanterns are highly resistant to leaks. Our products undergo rigorous testing for weather resistance and are designed with effective drainage systems. Regular maintenance can further ensure long-term performance.

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