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
Interested in installing a skylight but worried about heat loss? Our Flat Roof Skylight, measuring 600 x 900 mm, offers an impressive U-value of 0.9 W/m²K. With triple-glazed units and warm edge spacer technology, it provides excellent insulation, ensuring your space stays warm in winter and cool in summer. Enjoy abundant natural light without compromising on energy efficiency.
Why Choose Our Frameless Flat Roof Windows
- Energy Efficiency: Experience superior thermal performance with our triple-glazed units and warm edge spacer technology. Achieving a U-value of 0.9 W/m²K, these skylights keep your space comfortable throughout the year while helping to lower your energy bills.
- Unobstructed Views: The frameless design maximizes the amount of natural light entering your home, offering breathtaking, unobstructed panoramic views of the sky, enhancing the overall ambiance of your space.
- Self-Cleaning Convenience: Our skylights feature a sunlight-activated self-cleaning coating that reduces maintenance efforts, keeping the glass clear and spotless with minimal effort.
- Versatile Installation: Designed for flat roofs with pitches between 6° and 45°, our skylights are versatile enough to fit a variety of architectural styles and requirements, making them a perfect choice for many homes.
- Peaceful Ambiance: Our skylights provide excellent soundproofing, creating a quieter indoor environment and enhancing your overall comfort.
- Sun Safety: Enjoy natural light without worrying about harmful UV rays, as our skylights offer effective protection against UV radiation.
- Safety First: Constructed with safety-toughened glass, our skylights ensure maximum safety and durability, giving you peace of mind.
- Regulation Compliant: Our skylights meet all British Standards & Building Regulations and carry the CE safety marking.
Essential Skylight Accessories
Enhance your skylight experience with these essential accessories, designed to ensure seamless skylight installation and optimal performance:
- Inclined Insulated Upstand for Flat Roof Skylight 600x900mm: Our pre-built Inclined Insulated Upstands are crafted from thin wood veneers bonded with strong adhesives. This unique layering technique provides exceptional structural integrity, preventing warping or sagging over time, and simplifying the installation process.
- Skylight Blinds for Flat Roof Window 600x900mm: These custom-fitted blinds are designed specifically for your skylight size, giving you control over light and privacy. Create the ideal atmosphere in your home by adjusting the blinds to your preference.
- Installation Kit for 1 x Flat Roof Skylight 600x900mm: This comprehensive kit includes everything you need for a secure and hassle-free installation, ensuring your skylight is installed correctly for optimal performance and longevity.
- Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls): Our high-quality tape provides effective sealing to keep out the elements and offers crucial support during installation, ensuring a secure and reliable fit for your skylight.
- Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml: Essential for creating a watertight seal around your skylight, this durable silicon sealant ensures a weatherproof finish, keeping your indoor environment comfortable and dry.
- Self-Cleaning Liquid Smart Glass Bottle 15ml: Maintain the self-cleaning properties of your skylight with this special solution. It replenishes the self-cleaning coating, making it easy to keep your glass sparkling clean with minimal effort.
Choose Skylights.co.uk
We offer an extensive range of standard sizes, including the popular 900 x 600 mm skylight (also known as 0.9 x 0.6 m roof light), as well as fully custom skylights tailored to meet your specific needs.
Our flat rooflights deliver exceptional thermal performance, natural light and modern design!
Download our full product catalogue for more details about our flat roof skylights size range.
Contact us today to discuss your skylight project!
🗺️ Where to Buy Flat Roof Lights 600 x 900 mm Near Me
Looking for 600 x 900 mm flat roof lights near you? Also known as a 0.6 x 0.9 m skylight, this rectangular size is ideal for studio spaces, loft conversions, and rear extensions. Our frameless rooflights combine aesthetic appeal with technical precision—perfect for any modern build.
✅ Trusted by trades & architects across the UK
✅ Installer Support Available – We’re Here to Help
✅ Ideal for Extensions, Lofts, & New Builds
✅ 20-Year Warranty Included – No Hidden Costs
✅ Custom Sizes & Bespoke Options
Backed by UKCA certification and crafted with long-lasting materials, our skylights are built for British weather and shipped quickly nationwide—so your project stays on track.
Noah Williams –
Just had a 600 x 900 mm skylight installed in my small kitchen, and it’s like a whole new room! The quality of skylights.co.uk is unmatched, and the natural light has completely revitalized my cooking area.
Grace Spencer –
Installed a small skylight in a client’s office. They love it, very nice product.
Fergus McMahon –
The flat roof skylight has given our Plymouth home such a modern and bright feel. It was exactly what we needed to let more light into our space.
Roisin McGuinness –
In Birmingham, our flat roof skylight has made our living area so much more pleasant. It looks fantastic and lets in so much light.
Rachel MacDonald –
Our flat roof skylight in Carlisle is perfect. It brings natural light into our previously dark living room, and the quality is outstanding.
Holly Watson –
Couldn’t be happier with the skylight. The extra light it brings in is perfect for our home office, and the delivery was faster than expected.
Eoin Horns –
Super happy with the frameless roof window we installed in the bathroom. It’s sleek and modern, and the light it lets in is amazing.
Rhys Jerry –
Couldn’t be happier with our fixed roof light. The natural light has transformed our kitchen, and the service was excellent!
Niamh O’Sullivan –
The flat roof windows have made our living room feel much more open and airy. The natural light they bring in is fantastic.
Adam Dawson –
This KingsView Glass flat skylight is the crown jewel of our extension.
Grace Bailey –
The skylight was delivered fast and has brought in so much light to our bedroom. The quality is excellent, and the installation was simple.
Dominic Morley –
Frameless skylight from KingsView Glass looks like a luxury feature.