Our Flat Roof Skylights are composed of three distinct glass panes, each contributing to the unit’s durability and thermal efficiency:
- Top Pane: 6 mm Planibel Clearlite / Thermally toughened glass BS EN 12150
- Middle Pane: 6 mm iplus Thermally toughened glass with Low-E coating EN 12150
- Bottom Pane: Stratobel Clearlite 44.2 / Laminated glass EN 14449
Premium Flat Roof Skylights
Thinking about adding a skylight but worried about heat loss? Our Flat Roof Skylight measuring 600 x 2500 mm features an impressive U-value of 0.9 W/m²K, thanks to its triple-glazed units and warm edge spacer technology. This provides superior insulation, keeping your space warm in winter and cool in summer, while allowing in abundant natural light.
Why Choose Our Frameless Flat Roof Windows
- Energy Efficiency: Experience outstanding thermal performance with our triple-glazed units and warm edge spacer technology, resulting in a U-value of 0.9 W/m²K for year-round comfort and reduced energy expenses.
- Unobstructed Views: The frameless design maximizes natural light penetration and offers breathtaking panoramic views of the sky.
- Self-Cleaning Feature: Enjoy easy maintenance with a sunlight-activated self-cleaning feature that keeps your glass sparkling clean.
- Versatile Installation: Ideal for flat roofs with pitches between 6° and 45°, making it suitable for various home styles.
- Quiet Ambiance: Effective soundproofing ensures a peaceful indoor environment.
- UV Protection: Safeguards your interior from harmful UV rays.
- Safety First: Built with safety-toughened glass for enhanced security.
- Regulation Compliant: Fully compliant with British Standards & Building Regulations and carries the CE safety marking.
Essential Skylight Accessories
Enhance your skylight windows for flat roofs experience with these must-have accessories for smooth installation and optimal performance:
- Skylight Blinds for Flat Roof Window 600x2500mm: Custom-fit blinds provide light control and privacy, perfectly tailored to your skylight size.
- Installation Kit for 1 x Flat Roof Skylight 600x2500mm: A comprehensive kit that ensures secure and hassle-free installation for optimal performance and durability.
- Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls): Offers effective sealing and structural support during installation.
- Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml: Creates a durable, weatherproof seal around your skylight, keeping the elements out.
- Self-Cleaning Liquid Smart Glass Bottle 15ml: Replenishes the self-cleaning properties of your skylight, ensuring easy maintenance and spotless glass.
Choose Skylights.co.uk
We offer an extensive range of standard sizes, including the popular 2500 x 600 mm skylight (also known as 2.5 x 0.6 m roof light), as well as fully custom roof windows for flat roofs designed to enhance your space:
- Exceptional Thermal Performance: Triple glazing ensures superior insulation and comfort throughout the year.
- Natural Light Abundance: Our skylights flood your space with beautiful natural light, creating a bright and inviting atmosphere.
- Elegant Design: Sleek, modern designs that add a touch of sophistication to any setting.
Download our full product catalogue to discover more about our extensive range of flat roof skylights and find the perfect solution for your project.
Ready to discuss your skylight needs? Contact us today!
🗺️ Where to Buy 600 x 2500 mm Roof Lights Near Me
Looking to add a 600 x 2500 mm roof light near you? Also known as a 0.6 x 2.5 m skylight, this format is designed to introduce long streams of natural light into slim extensions, kitchen diners, and corridor spaces. Our frameless flat rooflights are engineered for clean aesthetics, structural reliability, and high thermal performance.
✅ Slimline Large Skylight – Ideal for Narrow Extensions
✅ Bespoke Sizes Available with Manufacturer Pricing
✅ Built for UK Weather – No Leaks, No Condensation
✅ 20-Year Warranty – Guaranteed Durability
✅ Fast, Direct Delivery from Our UK Workshop
Whether you’re building new or renovating, our UKCA-certified skylights bring clarity and light to every corner—shipped nationwide with full support.
Ethan Brown –
Installed a 600 x 2500 bathroom skylight for a client in Coventry, and everything was trouble-free. I’m impressed with the efficient service and competitive prices of this company!