The InfiniLIGHT® is Arkay’s premium flat rooflight solution, designed to maximise daylight with its frameless internal finish and flush-glazed external profile. Built with structurally bonded glazing and a fully thermally broken aluminium frame, it achieves U-values from 1.0 W/m²K, making it one of the most efficient rooflights on the market.
InfiniLIGHT is a registered trade mark of Arkay Windows Ltd, registered in the UK under trademark number no: UK00003550213.
The InfiniLIGHT® roof light blends contemporary frameless design with outstanding thermal performance, durability, and a beautifully refined finish—making it a sought-after choice for projects.
Available in double or triple glazing, it sits seamlessly within a slim aluminium frame. Pitched at 5° to prevent moisture build-up, it offers a low-maintenance solution that enhances natural light while maintaining long-term performance.
Its clean, minimalist aesthetic complements a wide range of architectural styles, creating a striking focal point that opens up interiors and enhances the sense of space. Lightweight yet robust, it features self-cleaning, solar-reflective glass—helping retain warmth in winter and reduce glare in summer.
For added practicality, motorised openable options are also available, allowing for easy ventilation at the touch of a button—ideal for improving airflow and comfort within the space.
Perfect for modern extensions such as orangeries and conservatories, the InfiniLIGHT® delivers a sophisticated balance of style, performance, and versatility.
| PROFILE HEIGHT | 102 mm |
| GLAZING THICKNESS | 24mm-60mm |
| MINIMUM FALL | 5 Degrees |
| MAXIMUM FALL | 25 Degrees |
| GLAZING METHOD | Structurally bonded |
| MAXIMUM LENGTH | 3000mm (Larger Available on Request) |
| MAXIMUM WIDTH | 2000mm (Larger Available on Request) |
| MAXIMUM WEIGHT | 1000 kg |
| U-VALUE | From 1.0 W/m²K |
| AIR PERMEABILITY | BS EN 1026: 2000 |
| WATER TIGHTNESS | BS EN 1027: 2000 |
| WIND RESISTANCE | BS EN 1221-1: 2000 |
InfiniLIGHT® is a flat frameless rooflight, while InfiniLANTERN® is a pitched lantern. InfiniLIGHT is ideal for contemporary flat-roof applications.
Standard sizes up to 3000mm x 2000mm, with larger bespoke options available on request.
Yes. With U-values from 1.0 W/m²K and a fully thermally broken frame, it outperforms many traditional rooflights.
Yes. A walk-on glazing option is available, making InfiniLIGHT suitable for use on balconies or roof terraces.
Yes. A motorised opening version is available, providing natural ventilation alongside daylight.
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