Stylish
Architectural design with low line aesthetics, deep internal bars, and elegant clean sightlines.
Outstanding thermal efficiency
Thermlock® technology and precision engineering deliver exceptional thermal performance and energy savings.
Secure
Our high security design tackles weaknesses of traditional lanterns, protecting against intruders and weather.
The right roof lantern for every project
The S1 Aluminium Roof Lantern has been designed to deliver maximum light, outstanding thermal performance, and a sleek architectural appearance, offering a versatile, installer-friendly solution built for the UK market.
For intelligent ventilation, our S1 is available with our optional SheerVent® roof vents for advanced ventilation.
- Styles
- Ventilation
- Thermal performance
- Colours
- Compatible products
Choose from 13 versatile configurations
From pyramids to large-scale designs, we offer a wide range of aluminium lantern roofs to suit any project.
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Style 13
Intelligent ventilation without leaks
With optional Sheervent® technology, you get reliable ventilation without muntin bars or risk of leaks – flush, secure, and fully thermally broken.
Contact UsEngineered to keep heating bills down
Thermlock® multi-chamber technology and co-extruded seals reduce draughts, condensation issues, and cold bridging.
Contact UsFrom classic tones to bold statements
Choose from standard options like Anthracite Grey, Jet Black and Pure White, or specify a bespoke lantern colour such as Cream, Agate Grey, Squirrel Grey; Pastel Turquoise, Chocolate Brown, Hipca gloss white, or most RAL colours available in Matt, Satin, Gloss or Textured finishes.
Contact UsOur S1 Roof Lantern is compatible with the following products
Security upgrade
Clamping plates and security screws prevent glass removal—even if caps are compromised—for added peace of mind.
LED feature
Optional integrated LED channels in the ridge and eaves offer an easy way to enhance installations with lighting.
Sheervent Option
Our flush, fully insulated Sheervent units use 28mm glazing and rain sensors for intelligent, secure airflow.
Precision-engineered eaves beam
Rigid Sheerline eaves beam with internal aluminium sections maximises strength and eliminates water ingress risks.
Installer-friendly design
Hook brackets and end caps reduce on-site errors and simplify fitting for faster, hassle-free installation.
Snow load
Snow load of 1.2KN/m2 covering the whole of the UK* ensuring the S1 is ready for the worst of the British weather. *Up to 200m altitude
Refined aesthetics
Slim, consistent 50mm rafter, hip and ridge sightlines maximise the light flooding into interiors. Shallow top caps sit just 8mm above glass to complete the ultra-low profile external aesthetic.
Aluminium solutions designed to deliver and engineered to impress
Thermlock®
Our unique Thermlock® multi-chamber technology in the eaves beams, ridges, and rafters delivers outstanding thermal insulation. It helps you meet customer expectations for warmer interiors and more energy-efficient glazed roofs.
Our co-extruded perimeter seal works alongside Thermlock® to prevent draughts and leaks. It creates a reliable weather-tight barrier that keeps rain out and heat in—giving you and your customers confidence in long-term roof performance.
FAQs
We’ve answered some of the most common queries to help you make sure that you choose the right aluminium roof lantern for your next project.
S1 aluminium roof lanterns can be manufactured up to 3200mm x 6000mm, covering even the largest residential installations.
Yes, the entire structure, including eaves and rafters, features Thermlock® thermal technology for exceptional thermal efficiency.
Standard colours include Pure White, Anthracite Grey, and Jet Black. Bespoke RAL finishes are available in matte, satin or gloss.
Yes. Sheervent can be fitted with wired actuators and rain sensors for reliable, automated ventilation performance.
The S1 is one of the most secure lanterns on the UK market, with glass locks, anti-tamper fixings and optional SBD upgrade.
Designed for your customers and you
Everything about the S1 is engineered to reduce fitting time and minimise callbacks. With our pre-assembled parts, we have simplified the process from start to finish.
Your customers also expect premium performance and flawless aesthetics, and the S1 delivers both. Our slim, consistent sightlines and ultra-low profile mean more natural light and a more modern finish. And with secure design features and sustainable aluminium construction, you’re offering more than just a product—you’re offering peace of mind.
Flush Intelligent Ventilation
SheerVent®
We’ve reimagined roof ventilation with SheerVent®, a flush-fit, thermally broken vent that blends seamlessly into our S1 Roof Lantern. Using the same 28mm glazing, it delivers reliable airflow without compromising looks, insulation, or weather protection. Designed for modern living, SheerVent® features powered actuators and can be remote controlled, or rain-sensor activated. Its ventilation made smarter – sleek, secure, and built to perform, giving your customers the comfort they want with none of the hassle.
What our clients have to say
Your go-to trade aluminium partner
Our experienced team are on hand to help you with any products you are interested in. If you require information that you can’t find on this site, fill as many details as you can on this form and we will contact you.