Roof lanterns are more than just a source of natural light—they’re a transformative architectural element that elevates the ambience of both residential and commercial spaces. Originally inspired by traditional glass roofs in conservatories, modern roof lanterns combine aesthetics with energy efficiency.
They bring in abundant daylight, reduce reliance on artificial lighting, and offer improved ventilation, making them an attractive option for eco-conscious homeowners and architects alike. Whether you’re building a new space or upgrading an existing structure, a roof lantern can be the focal point that marries style with functionality.

What Are Roof Lanterns?
Roof lanterns are elevated, glazed structures installed on flat or pitched roofs. They differ from conventional skylights in that they are designed to be a prominent architectural feature rather than just a practical light source.
- Definition & Design: A roof lantern consists of a sturdy frame, typically with multiple glass panels arranged to capture light from various angles. This design not only maximizes natural illumination but also creates a sense of openness and airiness within the interior.
- Versatility in Application: Frequently used in conservatories, orangeries, and modern extensions, roof lanterns can transform an ordinary room into a bright, inviting space. Their design allows them to serve both aesthetic and functional roles, enhancing indoor ambiance while also providing energy-efficient benefits.
How Do Roof Lanterns Work?
Roof lanterns work by harnessing and diffusing natural daylight, thereby reducing the need for artificial lighting and enhancing interior spaces.
- Structural Composition:
They consist of a frame fitted with multiple glass panels. The strategic placement of these panels means that light is captured from different directions throughout the day, ensuring a consistent level of illumination indoors. - Light Diffusion:
The multiple angles of the glass panels allow daylight to enter the room more evenly. This not only brightens up the space but also minimizes the harsh shadows that might occur with a single-pane skylight. - Ventilation Features:
Many modern roof lanterns include opening vents. These vents help regulate temperature and improve airflow, which is especially beneficial in warmer climates or in spaces where condensation can be a problem.
Types of Roof Lanterns
Roof lanterns come in several variations, primarily distinguished by the materials used and their operational features. Here’s a closer look:
1. uPVC Roof Lanterns
- Affordability & Efficiency:
uPVC (unplasticized polyvinyl chloride) offers an economical solution that does not sacrifice quality. These lanterns are lightweight, which makes installation easier and reduces the need for extensive roof reinforcement. - Low Maintenance:
Their inherent resistance to weathering means uPVC roof lanterns require minimal upkeep. They are available in several finishes such as white, grey, and even woodgrain, allowing for flexibility in design.
2. Aluminium Roof Lanterns
- Modern Appeal & Durability:
Aluminium provides a sleek, contemporary look combined with excellent structural strength. This material is ideal for larger glass panels since it supports a slim frame without compromising on durability. - Custom Finish Options:
With powder-coated finishes available in multiple colors, aluminium roof lanterns can be tailored to complement any architectural style.
3. Timber Roof Lanterns
- Traditional Charm:
Timber offers a classic, warm aesthetic that can be especially attractive in heritage properties or in homes where natural materials are favored. - Insulation Benefits:
Timber’s natural insulating properties help maintain indoor temperatures, though it does require regular maintenance to protect against the elements.
4. Fixed vs. Opening Roof Lanterns
- Fixed Roof Lanterns:
These are non-opening structures that serve the sole purpose of enhancing natural light. Their design is often simpler and can be an excellent choice when ventilation is not a major concern. - Opening Roof Lanterns:
Equipped with vents or even electric mechanisms, these lanterns can be opened to allow for additional ventilation, offering a dual benefit of light and air flow.
Benefits of Roof Lanterns
Roof lanterns provide a variety of benefits that go well beyond their striking visual appeal:
- Maximizes Natural Light:
By capturing daylight from multiple angles, roof lanterns reduce the need for artificial lighting, lowering energy costs. - Enhances Aesthetics:
Their modern, sophisticated design can dramatically boost the visual appeal of any space, serving as a standout architectural feature. - Improves Energy Efficiency:
Increased natural light leads to reduced energy consumption for lighting and heating, particularly when paired with proper insulation. - Increases Property Value:
Roof lanterns are seen as a premium upgrade, which can enhance the overall market value of a property. - Better Ventilation:
Opening designs offer the added benefit of improving indoor airflow, which can help in reducing moisture build-up and condensation issues.
How Much Do Roof Lanterns Cost?
The cost of roof lanterns can vary widely, influenced by several key factors:
Cost Factors
Material:
The choice of material significantly impacts the cost. uPVC tends to be the most budget-friendly option, while aluminium and timber are generally more expensive due to their durability and aesthetic appeal.
Size:
Larger installations require more robust structural support and larger glass panels, leading to higher costs.
Glazing Options:
The use of double or triple glazing not only affects the cost but also enhances the lantern’s insulation properties.
Customization:
Special features such as custom frame colors, smart glass technology, and automation can add to the overall price.
Average Price Ranges
Roof Lantern Type | Price Range |
uPVC Roof Lantern | £1,000 – £2,500 |
Aluminium Roof Lantern | £2,000 – £5,000 |
Timber Roof Lantern | £3,000 – £6,000 |
These ranges serve as a general guide and actual costs can vary based on location, installation complexity, and additional features.
Roof Lantern Installation Guide
Installing a roof lantern can be a rewarding DIY project or a task for a professional, depending on your skill level and the complexity of the installation.
Step-by-Step Installation Process
- Measure the Roof Opening:
Ensure precise measurements of the roof area where the lantern will be installed. Accurate dimensions are critical for a perfect fit. - Prepare the Roof Structure:
Reinforce the roof opening to support the additional weight of the lantern. This might include installing extra bracing or a supporting frame. - Install the Frame:
Secure the frame in place using weatherproof sealants to prevent water ingress. The frame acts as the backbone of the lantern structure. - Fit the Glass Panels:
Carefully place the double or triple-glazed panels into the frame. Precision is key to ensure an airtight and watertight fit. - Seal & Finish:
Apply the final weatherproofing sealant around the edges to ensure no leaks occur. A clean finish not only improves aesthetics but also boosts durability.
DIY vs. Professional Installation
- DIY Installation:
- Pros:
Suitable for small projects and for those with prior experience in construction or home improvement. - Cons:
Requires specialist tools, waterproof sealants, and careful attention to detail. Mistakes could lead to leaks or structural issues.
- Pros:
- Professional Installation:
- Pros:
Offers peace of mind with guaranteed structural integrity and weather resistance. - Cons:
Typically incurs additional costs, ranging from £500 to £1,500 depending on the project’s complexity.
- Pros:
If you’re also considering modern roof glazing solutions that complement sliding doors, explore our premium range of roof lanterns for high-quality options.
Planning Permission for Roof Lanterns
In most cases, installing a roof lantern is covered under permitted development rights, meaning that planning permission is not required. However, certain circumstances necessitate a more cautious approach:
- Listed Properties & Conservation Areas:
If your home is a listed building or located in a conservation area, additional restrictions may apply. - Height Restrictions:
Roof lanterns that extend more than 150mm above the roof level may require planning permission. - Proximity to Boundaries:
If the installation is too close to the property boundary, it might impact neighboring properties’ privacy and require special permissions.
Always consult your local planning authority to ensure compliance with regional building regulations and avoid potential legal issues.
Maintenance & Durability Tips
To keep your roof lantern in peak condition and maximize its lifespan, consider the following maintenance tips:
- Regular Cleaning:
Clean the glass panels periodically with a soft cloth and mild soapy water to remove dirt and debris without scratching the surface. - Inspect Seals & Joints:
After adverse weather conditions like storms, check all seals and joints for signs of wear, leaks, or cracks. - Lubricate Opening Vents:
For roof lanterns with opening mechanisms, lubricate the moving parts regularly to ensure smooth and reliable operation. - Prevent Condensation:
Use proper ventilation techniques or a dehumidifier if condensation becomes an issue. Adequate airflow is key to preventing moisture buildup.
Best Roof Lantern Brands & Supplier
When selecting a roof lantern, it’s important to consider reputable brands known for quality, durability, and innovative design:
- Atlas Roof Lanterns: Recognized for their high-performance, sleek aluminium designs that offer modern aesthetics along with robust functionality.
- Korniche: Offers premium, energy-efficient roof lanterns that feature slim, contemporary frames and are designed with cutting-edge technology to maximize natural light.
- Skypod: Known for their affordable yet stylish uPVC roof lanterns, Skypod combines practicality with an attractive design.
- Eurocell: Specializes in customizable roof lanterns, providing various glazing options and frame finishes to suit different architectural needs.
Conclusion
Roof lanterns represent an excellent investment for those looking to infuse their interiors with natural light while adding a touch of sophistication. Whether opting for the budget-friendly uPVC, the modern aluminium, or the classic timber variant, each option brings its own set of benefits—from energy efficiency to enhanced property value. With proper installation from IDL Windows and regular maintenance, a roof lantern can be a long-lasting feature that transforms your space into a bright, inviting environment.
Thinking about installing a roof lantern? Consider your design requirements, budget, and whether professional installation is needed, then get a free quote to start your journey toward a brighter, more beautiful space.