Last Updated on 2 April 2025 by
Roof Lantern – Everything You Need to Know
Looking to add a touch of architectural elegance and bring floods of natural light into your home? A roof lantern might just be the upgrade your space needs.
These beautifully engineered structures do more than just brighten a room—they elevate your space, enhance your home’s character, and bring the outside world in.
Whether you’re dreaming of a glass-topped kitchen extension, a light-filled orangery, or simply looking to open up a dark room with a dramatic feature, you’re in the right place.
In this guide, I’ll walk you through all the essentials—from the standout styles we offer here at GFD Homes to the must-know tips on sizing, installation, and performance.
In This Guide, We’ll Cover:
- What is a roof lantern and why choose one?
- Our top choices: Korniche roof lantern, Atlas roof lantern and flat rooflight options
- Flat roof light options
- Why Aluminium Roof Lanterns?
- Choosing the right size and shape
- Glazing options and energy efficiency
- Is a roof lantern right for your home?
- Budgeting for a roof lantern
- Installation tips and measuring advice
- FAQs about roof lanterns
What is a Roof Lantern and Why Choose One?
A roof lantern is a glazed architectural structure that sits atop a flat or low-pitched roof, bringing in more daylight and creating an eye-catching feature.
Unlike standard skylights, roof lanterns offer height, dimension, and a sense of grandeur.
They can instantly transform a kitchen extension, dining room, or orangery into a bright, open and inviting space.
At GFD Homes, we specialise in premium-quality roof lanterns that are built to last and easy on the eye. Let’s explore the stunning options available to you.
The GFD Line-Up: Korniche vs Atlas Roof Lanterns
Korniche Roof Lantern
If you’re after sleek sightlines, easy installation, and impressive strength, the Korniche roof lantern is hard to beat.
Designed with precision engineering, this award-winning lantern can span up to 6mx4m, making it ideal for both large and small extensions.
It’s available in bespoke RAL colours and comes with self-cleaning glass as standard.
Ultra-slim aluminium frame for minimal sightlines
Enjoy panoramic views without bulky framing. Korniche’s engineering keeps sightlines razor-thin while maintaining incredible strength.
Exceptional thermal performance (U-values as low as 1.2)
The integrated thermal breaks help keep your space warm in winter and cool in summer, contributing to lower energy bills year-round.
Fastest and easiest lantern to install on the UK market
Thanks to its smart click-together design, the Korniche can be installed in record time, even by confident DIYers or time-conscious builders.
Fully thermally broken for year-round comfort
Internal and external aluminium sections are separated by high-performance barriers, preventing thermal bridging and condensation.
Atlas Roof Lantern
Prefer a more minimalist finish with a truly frameless internal look? The Atlas roof lantern is your go-to. Its unique all-aluminium thermally broken frame delivers stunning aesthetics and maximum light. The flush internal plaster line finish creates the illusion of an open roof with no intrusive rafters.
Beautifully minimal design
Sleek, contemporary aesthetics and no internal obstructions make the Atlas lantern a favourite for stylish extensions.
U-values down to 1.4 W/m2k
Combining slim sightlines with excellent thermal efficiency, helping you stay warm without sacrificing daylight.
Marine-grade powder coated aluminium for durability
Ideal for UK weather, the frame’s finish resists corrosion and maintains its appearance for decades.
Ideal for contemporary interiors and flat roof extensions
The clean, flush plaster line effect delivers a high-end feel, perfect for design-led spaces.
What About Flat Roof Options?
If the lantern look isn’t quite your style, flat rooflights like the Korniche Flat Glass offer a more subtle way to invite daylight into your home.
Home offices where you want concentration and natural light
Give your workspace an airy, focused atmosphere with overhead daylight that keeps you productive and inspired.
Bathrooms needing privacy with light
Enjoy brightness without compromising your privacy. Flat rooflights are perfect for bathrooms where side windows aren’t practical.
Modern garden rooms or bedrooms for a flush, sleek finish
Enhance contemporary designs with flush-fit glazing that disappears into the ceiling.
Key Benefits of Flat Rooflights
Flush glass-to-frame finish for modern styling
A frameless internal look creates the illusion of open sky.
Market-leading thermal efficiency
Built with thermal breaks and high-spec glazing to keep interiors comfortable.
Self-cleaning solar control glass
Cuts down on glare and cleaning—ideal for hard-to-reach spots.
Slimline aluminium design with hidden fixings
No bulky bars or hardware—just light, uninterrupted.
Why Aluminium Roof Lanterns?
We only offer aluminium roof lanterns for good reason.
They’re strong, slim, and virtually maintenance-free. Compared to uPVC or timber, aluminium won’t warp, flex or require repainting over time.
Plus, it enables those razor-thin sightlines that let more light flood in and make your roof lantern truly stand out.
Choosing the Right Roof Lantern Size & Shape
Flat roof lanterns are versatile and can be tailored to your needs. Common shapes include rectangular and pyramid designs.
Whether you’re looking for a centrepiece over a kitchen island or a dramatic vaulted ceiling feature, sizing is key.
Small (1m x 1m to 1.5m x 1.5m): Ideal for compact rooms
Perfect for bathrooms, utility rooms, or adding a skylight effect without overwhelming the space.
Medium (2m x 1m to 3m x 2m): Great for kitchens and dining areas
Adds architectural interest and floods mid-sized spaces with daylight—perfect above a dining table.
Large (up to 6m x 4m): For open-plan living spaces or orangeries
A showstopper for extensions or larger rooms. Brings the wow-factor and unites indoor and outdoor vibes seamlessly.
Glazing Options: Energy Efficient & Self-Cleaning
All our roof lanterns come with double-glazed units featuring solar control and low-e coatings. This keeps the heat in during winter and reflects excess heat in summer.
Neutral
Clean and colour-neutral, this glass choice reduces glare and maintains a natural view.
Blue tint
Adds a cooler tone to the room while reducing sun glare—a popular choice for modern aesthetics.
Self-cleaning
A special coating activated by UV rays helps break down dirt, which is then washed away by rainwater. Fewer streaks, less maintenance.
Blinds and Accessories for Roof Lanterns
Worried about light or privacy? You’re not alone. Many homeowners opt to add blinds for roof lanterns—especially in bedrooms and south-facing spaces.
Motorised blinds
Controlled via remote or smartphone, motorised blinds are ideal for high ceilings or hard-to-reach lanterns.
Smart home integration
Want your blinds to close when the sun gets too strong or at sunset? Integrate them with your smart home system for automated comfort.
Is a Roof Lantern Right for My Home?
Here’s a quick checklist:
- Do you have a flat or low-pitched roof?
- Do you want more natural light?
- Are you seeking a wow-factor feature?
- Want to increase your home’s value?
If you ticked yes to any of these, a roof lantern could be the perfect addition.
Maintenance and Longevity Tips
- Clean glass with mild detergent twice a year
- Check seals and gaskets annually to maintain weather resistance
- Use self-cleaning glass to reduce upkeep—particularly useful for hard-to-access roofs
- Powder-coated aluminium frames resist corrosion and come with up to 25-year guarantees
Budgeting for a Roof Lantern
Prices vary based on size, glass, and installation. Here’s a ballpark:
Small lantern: from £700–£1,000 (supply only)
Affordable for those wanting to brighten a compact space.
Medium: £1,200–£2,000
Great balance between function, aesthetics, and investment.
Large bespoke: £2,500+
Perfect for feature installations and open-plan designs.
Need a full install? Use our instant quote tool or speak to a team member.
Measuring Up and Installation Tips
Measuring for your Korniche roof lantern or Atlas roof lantern is easier than you think. We offer full guides and support, but here’s the quick tip:
Measure the external upstand size on your flat roof and we’ll size your lantern accordingly. Make sure the upstand is at least 70mm wide and 150mm high.
Ready to Transform Your Space? Let’s Make It Happen
Choosing the right roof lantern is a big decision—but one that can completely redefine the way your home feels and functions.
Whether you’re drawn to the sleek engineering of a Korniche roof lantern, the frameless elegance of an Atlas roof lantern, or the clean minimalism of a flat rooflight, we’ve got an option that will work beautifully with your vision.
Got questions? Need guidance? Our expert team is just a phone call away.
Call us on 01642 309 576 or get an instant quote online to bring your dream space to life with GFD Homes.
FAQs About Roof Lanterns
How to measure a Korniche roof lantern?
Measure the external upstand size on your flat roof. You’ll need at least 150mm height and 70mm width for a safe fit. We base your lantern size on this measurement.
How to stop flies in roof lantern?
Install fly screens or roof lantern blinds. Also consider self-cleaning glass and proper ventilation to reduce condensation that attracts insects.
Are roof lanterns a good idea?
Absolutely. They add light, height, and a wow-factor to your space while improving your home’s value. With modern thermal glazing, they’re energy-efficient too.
Are roof lanterns noisy when it rains?
With quality double glazing and thermally broken aluminium frames, noise is minimal. Some users even find the gentle rain sound relaxing!
Suggested Reads From the GFD Blog
- Roof Lantern Styles: Modern, Classic & Pyramid Options Explained
- Pitched Roof Roof Lanterns: Key Facts You Need to Know
- How to Maintain and Repair a Roof Lantern
- How to Make Your Home More Energy Efficient
Trade roof lantern: Looking for trade prices? Check out our trade site The Trade Village
