Premium Double-Glazed Rooflight by Rooflight Factory
Experience exceptional thermal performance and clarity with this premium double-glazed rooflight from Rooflight Factory. Designed to provide outstanding insulation and light transmission, it combines robust laminated safety glass with advanced low-emissivity technology, making it ideal for both residential and commercial applications.
Key Features
- Superior Insulation: Achieves a U-value of 1.1 W/m²K (EN 673) for excellent thermal efficiency and reduced heat loss.
- High Light Transmission: Allows 74% visible light through (EN 410), brightening interiors naturally.
- Energy Efficient: Argon-filled cavity (90%) enhances performance and comfort all year round.
- Durable Safety Glass: Features toughened and laminated panes for enhanced strength and safety.
- Low-E Coating: Advanced coating technology helps maintain warmth indoors while reducing solar gain.
Construction Details
- 1st Pane: Stratobel Clearlite 8.8.8 Thermally Toughened Laminated Glass
- Air Gap: Air gap: 16 mm Argon 90%
- 2nd Pane: 6 mm iplus Thermally toughened glass with Low-E coating BS EN 12150
Technical Specifications
| Specification | Value |
|---|---|
| Glazing Type | Double Glazed |
| Top Glass Pane | Stratobel Clearlite 8.8.8 Thermally Toughened Laminated Glass |
| Bottom Glass Pane | 6 mm iplus Thermally toughened glass with Low-E coating BS EN 12150 |
| Air Gap | 16 mm Argon 90% |
| U-value (EN 673) | 1.1 W/m²K |
| Light Transmittance (EN 410) | τv [%] 74 |
| External Light Reflection (EN 410) | ρv [%] 11 |
| Internal Light Reflection (EN 410) | ρvi [%] 12 |
| Colour Rendering Index (EN 410) | Ra [%] 95 |
| Total Solar Energy Transmittance (EN 410) | g [%] 49 |
| Shading Coefficient (EN 410) | SC 0.56 |
| Selectivity (EN 410) | 1.51 |
Ideal For
This glazing system is perfect for modern rooflight installations, providing superior insulation, clarity, and durability. It’s suited for flat or pitched roofs where natural light and energy efficiency are priorities.
Why Choose Rooflight Factory?
Rooflight Factory products combine innovative design with precision engineering, ensuring long-lasting performance and exceptional quality. This double-glazed unit offers the perfect balance of safety, comfort, and visual appeal—crafted to meet the demands of contemporary British architecture.




































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