Features
Key Design and Performance Features
Our roof lanterns are designed for more natural light, better stability, and improved thermal efficiency. Narrower frames offer a cleaner look, and reinforced geometry boosts rigidity without adding visual bulk. Every detail ensures the lantern feels integrated into the extension, resulting in a sharper silhouette, enhanced comfort, and reliable long-term performance.
More Glass, Less Frame
Slimmer ridge and hip sections reduce visible framework, allowing more daylight to flood the room. The result is a brighter, more open space with a cleaner, contemporary finish.
Warmer All Year Round
The frame features built-in insulation that separates the interior from the exterior, helping to prevent heat loss through the structure. When combined with energy-efficient double glazing, it maintains a more comfortable temperature throughout the year.
Strong and Secure
Engineered structural sections provide rigidity without bulky framing, while the internal glazing system improves security once installed.
Built for UK Weather
Refined sealing and jointing details enhance long-term weather resistance, helping safeguard your home from wind and rain year after year.
Easy to Install
Supplied as a precision-engineered kit, the system is designed for simple, consistent installation with no on-site cutting needed.
Optional Integrated Lighting
Integrated LED lighting can be specified to form a striking feature after dark, enhancing atmosphere without visible fittings or surface wiring.
Specifications
Every roofing project is unique, whether it's an extension, renovation, or new build, and each reflects individual tastes. Our roof lanterns offer multiple choices to suit your specific requirements. You can choose from various sizes, finishes, and glazing options to design a roof lantern that seamlessly matches your project's style and architecture.
Colour Options
Three stock RAL colours with dual colour options available at no extra cost, along with custom finishes to suit any project.
Matt Black
RAL 9005
Gloss White
RAL 9910
Matt Grey
RAL 7016
Custom
Bespoke colours available
Performance Glazing Options
All 28mm units are filled with argon, feature a warm-edge spacer bar, and have a self-cleaning coating. For south-facing installations, consider using a glass type with higher solar heat reflection to minimise solar gain.
Performance Glazing Options
All 28mm units are filled with argon, feature a warm-edge spacer bar, and have a self-cleaning coating. For south-facing installations, consider using a glass type with higher solar heat reflection to minimise solar gain.
Clear
U-Value 1.2 W/m²K
Solar Reflect 31%
Light Trans 77%
Neutral
U-Value 1.2 W/m²K
Solar Reflect 59%
Light Trans 44%
Blue
U-Value 1.2 W/m²K
Solar Reflect 73%
Light Trans 32%
Premium Clear
U-Value 1.0 W/m²K
Solar Reflect 38%
Light Trans 70%
Premium Aqua
U-Value 1.0 W/m²K
Solar Reflect 82%
Light Trans 28%
Premium Blue
U-Value 1.0 W/m²K
Solar Reflect 83%
Light Trans 23%
Get Started
Ready to Transform Your Space
Contact the GRP Roofing team to discuss your roof lantern needs. We'll assist you in selecting the right size, glazing, and colour for your project.
Need some help?
Give us a call, request a callback or browse our support section for more information on our products and services.
