Last Updated on 27 February 2025 by Tia Ellahi
Pitched Roof Roof Lanterns: What are they?
Pitched roof roof lanterns are often mistakenly considered for sloped roofs, but in reality, roof lanterns are only suitable for flat roofs, with skylights or dormer windows being the preferred alternatives for pitched roofs.
When it comes to adding natural light to your home, roof lanterns and roof lights (or skylights) are two popular options. However, a common question is: Can you install a roof lantern on a pitched roof? The simple answer is no—roof lanterns are designed specifically for flat roofs due to structural constraints. But don’t worry!
If you have a pitched roof, you still have excellent alternatives like roof lights (skylights) or dormer windows to achieve the same bright, open feel.
What You’ll Learn in This Guide..
- Why roof lanterns cannot be installed on pitched roofs
- The best alternatives for pitched roofs, including roof lights (skylights)
- How pitched roof glass improves insulation and efficiency
- Building regulations and planning considerations
- FAQs
Why Can’t You Install a Roof Lantern on a Pitched Roof?
Roof lanterns are specifically designed for flat roofs and require a level surface for structural stability. Installing a roof lantern on a pitched roof would create major water drainage issues, increased wind resistance, and structural complications, making it impractical and unsafe.
However, if you’re looking to bring more natural light into a pitched roof space, there are two great alternatives to pitched roof roof lanterns:
- Roof Lights (Skylights) – Ideal for sloped roofs, these provide a seamless way to bring in daylight without compromising the roof structure.
- Dormer Windows – These are another excellent option, creating additional space while letting in more light.
Best Alternatives to Roof Lanterns for Pitched Roofs
1. Roof Lights (Skylights) for Pitched Roofs
Roof lights (commonly referred to as skylights in the UK) are specifically designed for pitched roofs. Unlike roof lanterns, they sit flush with the slope of the roof, making them structurally sound and efficient at draining rainwater.
Benefits of Pitched Roof Lights (Skylights):
✔ Designed for sloped surfaces
✔ Easy water drainage and weather resistance
✔ Improved ventilation with opening options (not all roof lights offer ventilation)
✔ Available in double or triple-glazing for better insulation
2. Dormer Windows for Pitched Roofs
If you’re looking for an option that adds both light and extra space, a dormer window could be the right choice. Dormers extend vertically from the sloped roof, creating additional headroom and allowing for traditional vertical windows.
Benefits of Dormer Windows:
✔ Increases headroom and functional space
✔ Allows for traditional window designs
✔ Enhances kerb appeal and architectural style
Pitched Roof Glass: What You Need to Know
If you’re opting for pitched roof lights (skylights) or dormer windows, choosing the right pitched roof glass is key to energy efficiency, safety, and long-term performance.
Recommended Pitched Roof Glass Options:
- Self-cleaning glass – Reduces maintenance and keeps views clear.
- Solar-controlled glass – Helps regulate indoor temperature by reducing heat gain.
- Toughened safety glass – Ensures durability and compliance with building regulations.
- Double or triple glazing – Provides better insulation and noise reduction.
Do You Need Building Regulations for a Pitched Roof Light or Dormer Window?
You may need building regulations approval when modifying your roof, depending on the scope of the work. Here’s what to consider:
✔ Structural integrity – The roof must safely support the new installation.
✔ Thermal efficiency – Ensuring the installation meets minimum U-value requirements for insulation.
✔ Safety glazing compliance – Using the correct type of glass for durability and safety.
✔ Planning permission – Usually not required for skylights, but dormer windows may need approval if they significantly alter the exterior appearance.
For most projects, including larger builds, structural changes, or properties in conservation areas, it’s always best to check with planning authorities before starting any project to ensure compliance.
Pitched Roof Roof Lanterns: Understanding Your Best Options
When looking to add natural light to your home, it’s crucial to choose the right product for your roof type. While roof lanterns are a fantastic choice for flat roofs, they aren’t suitable for pitched roofs due to structural limitations. Similarly, while some skylights (roof lights) can be installed on pitched roofs, our Korniche roof lights are designed exclusively for flat roofs and cannot be fitted onto a sloped surface.
For pitched roofs, the best alternatives are skylights (roof lights) specifically designed for sloped roofs or dormer windows, which provide both light and additional space. These solutions offer practical ways to brighten your home without compromising roof integrity.
Before starting any project, it’s always best to check with planning authorities to ensure compliance with building regulations.
Need advice on the best option for your home? Call our team on 01642 309576 for expert guidance!
FAQs about Pitched Roof Roof Lanterns
Can you have a roof lantern on a pitched roof?
No, roof lanterns are only suitable for flat roofs. For pitched roofs, consider roof lights (skylights) or dormer windows instead.
Can you put a skylight on a pitched roof?
Yes! Some skylights (roof lights) are designed specifically for pitched roofs, providing natural light while maintaining structural integrity.
Do I need building regs for a pitched roof light?
Yes, you may need building regulations approval for roof modifications, particularly for structural safety, insulation, and glazing requirements. Always check with your local authority before starting any work to ensure compliance.
Still have questions? Check out these articles too!..
- Roof Lantern Styles: Modern, Classic & Pyramid Options Explained
- Roof Lanterns: Should you choose an opening or fixed design?
- Korniche Roof Lanterns: The ultimate light-enhancing home feature
