1500 x 2500 mm Flat Roof Skylight – Frameless, Triple Glazed
£1,945.00
A high-performance, large-scale frameless skylight designed to maximize daylight while minimizing heat loss and external noise. Crafted with advanced triple glazing and self-cleaning glass, it delivers lasting clarity, thermal comfort, and architectural elegance.
✨ Frameless Triple‑Glazed Rooflight | 1500 × 2500 mm
Flood any interior with daylight while maintaining a crisp, contemporary look. This fixed, frameless rooflight is purpose‑built for flat roofs and pairs triple‑glazed safety glass with advanced coatings to balance insulation, solar control, and visual clarity.
Key Features
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Generous visible area: 1500 × 2500 mm of unobstructed sky view
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Exceptional thermal performance: U‑value 0.9 W/m²K keeps heat where it belongs
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Solar factor (G‑value) 58 % — helps regulate passive gains
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Self‑cleaning, low‑maintenance finish for a crystal‑clear outlook
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Sleek, border‑to‑border glass aesthetic elevates both residential and commercial architecture
Technical Data
| Specification | Detail |
|---|---|
| Glazing build‑up | Triple glazed |
| External glass size | 1700 × 2700 mm |
| Top pane | 8 mm Planibel Clearlite, thermally toughened (BS EN 12150) |
| Middle pane | 6 mm iplus Low‑E, thermally toughened (EN 12150) |
| Bottom pane | 8 mm Planibel Clearlite, thermally toughened (BS EN 12150) |
| Spacer | 15 mm warm‑edge, black |
| Cavities | 2 × 15 mm, argon‑filled (90 %) |
| Acoustic rating | 39 dB (EN 12758) |
| Approx. weight | 223 kg |
| Tint / coating | Clear, self‑cleaning, UV‑filtered |
Structural note: Where the glass width exceeds 1 m, the bottom pane is supplied thermally toughened to ensure load safety.
Compliance
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CE marked, satisfying all current EU product directives
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Manufactured in line with British Standards and UK Building Regulations
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Suitable for installation pitches up to 45° (non‑opening applications)
Installation Guidelines
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Opening size: add 10 mm to the internal dimensions (recommendation: 1510 × 2510 mm).
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Black border: a 100 mm ceramic border on the top pane adds 200 mm overall in each direction.
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Upstand: construct from treated timber (2″ × 1″ or 2″ × 2″).
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Sealant: exclusively use Dowsil 791 (black); acrylic sealants are not suitable.
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Foam rope: insert around the perimeter to equalise pressure and relieve stress.
Advantages at a Glance
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Frameless minimalism for uninterrupted sightlines
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Triple‑layer insulation reduces heat loss and external noise
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Clear UV‑guarded glazing preserves interior finishes
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Self‑cleaning surface keeps maintenance effortless
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