Let more light in—from above. Explore roof lanterns and roof lights for your flat roof extension.
What you’ll learn in this article:
- The key differences between roof lanterns and flat roof lights
- Price examples and real-world use cases
- Our top product picks: Atlas and Korniche aluminium roof glazing
- Expert tips for choosing and installing the right flat roof glazing
(Estimated reading time: 6-7 minutes)
Introduction : What are your choices?
Thinking about adding natural light to your flat roof extension? A roof lantern or flat roof light can transform any space—bringing in daylight, opening up the room, and even improving your energy efficiency.
But which is best for your home?
In this guide, we break down roof lanterns vs roof lights to help you decide. Whether you’re planning a kitchen-diner, garden room, or modern refurb, you’ll find side-by-side comparisons, price guides, and product highlights—featuring premium brands like Atlas and Korniche.
Let’s find the right fit for your flat roof.
Why Natural Light from Above Matters
Roof glazing doesn’t just brighten your room—it elevates the space. A well-placed roof light can:
✅ Make your room feel bigger
✅ Improve mood and wellbeing
✅ Reduce dependence on artificial lighting
✅ Help you connect to the outdoors
✅ Increase property value
“If you’re planning a flat roof extension or refurb, roof glazing isn’t a luxury—it’s a design essential.”
Roof Lanterns vs Roof Lights: What’s the Difference?
Roof Lanterns
A roof lantern is a three-dimensional glazed structure that sits above your flat roof, like a mini conservatory roof. It creates a vaulted ceiling effect and adds architectural interest.
Pros:
- Maximum height and volume
- Dramatic visual impact
- Great for large open-plan areas
Cons:
- More expensive than flat roof lights
- Not ideal for very low-profile builds
Roof Lights
Roof lights (sometimes called flat roof windows or skylights) sit flush or near-flush to the roofline. They’re sleek, modern and ideal for minimalist or contemporary spaces.
Pros:
- Discreet and modern
- Great for bedrooms, hallways, bathrooms
- Easy to maintain and weatherproof
Cons:
- Less “wow” factor than lanterns
- May not suit traditional-style homes
Best Roof Lanterns for UK Homes
Atlas Aluminium Roof Lanterns – from just £925
Why it stands out:
Atlas are known for their ultra-slim sightlines and thermally broken aluminium frames, making them ideal for style-conscious extensions.
Features:
- Minimal rafter and ridge bars = more glass, more light
- Available in custom RAL colours
- Fully thermally broken – low U-values down to 1.0 W/m²K
- Sizes up to 3m x 6m
Best for:
Modern kitchen-diners, open-plan extensions, premium refurbs
“Atlas lanterns are for homeowners who want to make a statement—bold, beautiful, and built to last.”
Korniche Aluminium Roof Lanterns – from just £703
Why it stands out:
Korniche’s clever clip-fit system makes it one of the easiest roof lanterns to install, without compromising strength or looks.
Features:
- PAS 24-compliant for added security
- Pre-glazed for quicker fit and fewer callbacks
- Slimline aluminium frames
- U-values as low as 1.2 W/m²K
- Suitable for spans up to 3m x 5.5m
Best for:
Quick installs, trade professionals, value-led homeowners
“If you want reliable performance, sleek design and stress-free fitting—go Korniche.”
Best Roof Lights for Flat Roofs
Korniche Flat Roof Lights – from just £560
Why it stands out:
The newest addition to the Korniche lineup, these flat roof lights combine clean lines and high performance in a low-profile frame.
Features:
- Frameless internal appearance
- Thermally broken construction
- High-spec double glazing
- Sleek finish in black or white
Best for:
Minimalist builds, bathrooms, hallway lighting, flat-roof bedrooms
“Flat roof lights give you all the benefits of daylight—without altering your exterior aesthetic.”
Pricing Guide: What to Expect (inc. VAT)
| Product | Size (approx.) | Starting Price (inc. VAT) |
|---|---|---|
| Korniche Roof Lantern | 850 x 850 mm | From £703 |
| Atlas Contemporary Roof Lantern | 1000 x 1500 mm | From £925 |
| Korniche Flat Roof Light | 1000 x 1000 mm | From £560 |
Installation costs not included. GFD Homes provides supply only—perfect for trade fitters and confident self-builders.
Roof Glazing: Installation Tips
- Orientation matters – South-facing? Consider solar control glass.
- Don’t forget ventilation – Ask about manual or electric vent options.
- Planning permission? – Usually not needed, but confirm with your local council.
- Match the look – Aluminium frames tie in perfectly with bifold or sliding doors.
- Go thermally broken – Always choose systems with low U-values for year-round comfort.
Why Choose GFD Homes?
We’re here to make high-quality home improvement easy and accessible. From expert product advice to nationwide delivery, we support you from start to finish.
✅ Family-run business, UK based
✅ Competitive pricing on premium brands
✅ Finance options available – Use our calculator
✅ Trade-friendly – Join The Trade Village
✅ Rated Excellent on Trustpilot
“We’ve helped thousands of UK homeowners bring more light into their homes—with stylish, affordable products that perform.”
Conclusion
When it comes to roof lanterns vs roof lights, there’s no one-size-fits-all winner—just the best choice for your space, your style, and your budget.
Go for a roof lantern if you want to make a bold statement and flood a large, open-plan room with light.
Choose a flat roof light if you prefer a sleek, subtle finish for modern builds, bathrooms, or compact extensions.
Whichever you choose, GFD Homes has you covered. We supply only the best aluminium systems on the market—at competitive prices, with expert advice and fast UK delivery.
✅ Aluminium or uPVC doors
✅ Composite front doors
✅ Heritage-style and modern glazing
✅ Customisable options to suit any style
🛒 Browse the full collection at www.gfdhomes.co.uk.
📞 Or call 01642 309576 for expert guidance and a no-pressure quote.
In a rush? Why not contact us via Whatsapp
Browse our articles regarding Roof Lanterns & Roof Lights
- Glass Roof: Why Lanterns and Roof Lights Are the Future of Home Extensions
- Roof Lanterns & Rooflights – Your Questions Answered
- Orangery Extension: Renovation Ideas, Costs & Best Bifold Doors, Roof Lanterns & Roof Lights
- Trade Roof Lanterns & Rooflights: Looking for trade prices? Visit our trade site, The Trade Village
FAQs About Roof Lanterns & Roof Lights
Do roof lanterns let in more light than roof lights?
Yes – due to their raised pitch and angled glass, they capture light from multiple directions.
Can roof lanterns be installed in any flat roof?
In most cases, yes—ensure your roof structure is suitable for the weight and loading.
Are Korniche and Atlas lanterns energy-efficient?
Absolutely—both brands offer thermally broken frames and low U-value glazing.
Which is better for a modern home—roof light or roof lantern?
Flat roof lights suit ultra-minimalist homes. Lanterns offer more impact and are better for larger rooms.
Can I customise frame colours?
Yes! Atlas and Korniche offer multiple RAL shades. Dual colour options available.
