Flat Roof Skylight 800 x 1800 mm, Fixed, Frameless, Triple Glazed, 73.20kg, UV 0.9
Original price was: £ 660.00.£ 495.90Current price is: £ 495.90. incl. VAT
Prices go up when the timer hits zero.
44 in stock (can be backordered)
Skylights.co.uk: Trusted rooflights. Built to prevent leaks.
Type: Fixed Frameless Flat Roof Skylight
Internal Size: 800 x 1800 mm
External Size: 1000 x 2000 mm
Glazing Type: Triple Glazed
Net Weight: 73.20kg
U Value: 0.9 W/m²K
G Value: 58%
Light transmittance : τv [%] 72
Sound reduction (EN 12758): 39dB
UV transmission : τuv [%] 0
Toughened safety & laminated glass
Leakproof Design
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, compliant with BS EN 12150
- Middle Pane: 4 mm Planibel Clearlite / Thermally toughened glass, compliant with BS EN 12150
- Bottom Pane: Stratobel Clearlite 44.2 iplus 1.1 / Laminated glass with Low-E coating, compliant with EN 14449
Premium Flat Roof Skylights
Thinking of adding a skylight but worried about heat loss? Our Flat Roof Skylight 800 x 1800 mm boasts an impressive U-value of 0.9 W/m²K, thanks to its triple-glazed units and warm edge spacer technology. That means superior insulation, keeping your space cozy in winter and pleasantly cool in summer – all while enjoying tons of natural light!
Why Choose Our Frameless Flat Roof Windows
- Energy Efficiency: Enjoy outstanding thermal performance with triple-glazed units and warm edge spacer technology. This translates to a U-value of 0.9 W/m²K, keeping your space comfortable year-round and reducing energy bills.
- Unobstructed Views: The frameless design maximizes natural light penetration, offering breathtaking panoramic views of the sky.
- Self-Cleaning Convenience: Effortless maintenance with a sunlight-activated self-cleaning feature that keeps the glass spotless.
- Versatile Installation: Suitable for flat roofs with pitches between 6° and 45°, making it a great fit for many homes.
- Peaceful Ambiance: Provides effective soundproofing for a quieter indoor environment.
- Sun Safety: Offers protection against harmful UV rays.
- Safety First: Constructed with safety-toughened glass for ultimate peace of mind.
- Regulation Compliant: Meets all British Standards & Building Regulations and carries the CE safety marking.
Essential Skylight Accessories
Upgrade your flat roof skylight experience with these essential add-ons for a seamless roof window installation and optimal performance:
- Inclined Insulated Upstand for Flat Roof Skylight 800 x 1800 mm: Our Inclined Insulated Upstands take the hassle out of installing your flat roof skylight. These pre-built wonders are crafted with thin wood veneers bonded with strong adhesives. A unique layering technique ensures exceptional structural integrity, so you won’t have to worry about warping or sagging over time.
- Skylight Blinds for Flat Roof Window 800 x 1800 mm: The power to control the light and privacy in your space! Designed specifically for your skylight size, these blinds offer a perfect fit and allow you to create the ideal atmosphere in your home.
- Installation Kit for 1 x Flat Roof Skylight 800 x 1800 mm: Everything you need for a secure and stress-free installation. This complete kit takes the guesswork out of the process, ensuring your skylight is properly installed for optimal performance and lasting enjoyment.
- Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls): Double threat during installation. This high-quality tape provides both effective sealing to keep the elements at bay and crucial support for a secure fit.
- Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml: The key to a watertight seal around your skylight. This durable sealant creates a weatherproof finish that keeps the elements out, ensuring your peace of mind and a comfortable indoor environment.
- Self-Cleaning Liquid Smart Glass Bottle 15ml: This special solution replenishes the self-cleaning properties of your skylight, ensuring effortless maintenance and sparkling glass with minimal effort on your part.
Choose Skylights.co.uk
We offer an extensive range of standard sizes, including the popular 1800 x 800 mm skylight (also known as 1.8 x 0.8 m roof light), as well as fully custom skylights to suit your specific needs. No matter the project, our flat rooflights provide:
- Exceptional Thermal Performance: Enjoy outstanding energy efficiency thanks to innovative features like triple glazing, keeping your space comfortable year-round.
- Natural Light Abundance: Bathe your space in beautiful natural light with our roof windows and skylights, creating a brighter and more inviting atmosphere.
- Elegant Design: Add a touch of sophistication to any setting with our sleek and modern glass skylights for flat roofs.
Download our full product catalogue to explore our extensive roof skylights for flat roofs range and find the perfect solution for your project.
Ready to discuss your skylight needs? Contact us today!
🗺️ Where to Buy 800 x 1800 mm Roof Lights Near Me
Looking for 800 x 1800 mm roof lights near you? Also known as a 0.8 x 1.8 m skylight, this large-format option is ideal for open-plan kitchens, dining areas, and home extensions. We craft frameless flat rooflights designed for performance, longevity, and a clean architectural finish.
✅ Large Skylight – Designed for Impact & Daylight Spread
✅ Installer Support Available
✅ UKCA Certified for Full Building Compliance
✅ Rated 5 Stars on Google
✅ 20-Year Warranty Included
With fast UK-wide delivery and precision manufacturing, our skylights are trusted by professionals for projects that demand style and substance.
| Weight | 73.20 kg |
|---|---|
| Dimensions | 205 × 10 × 105 cm |
| Brand |
Skylights.co.uk |
| Internal Size |
800 x 1800 mm |
| External Size |
1000 x 2000 mm |
| Glazing Type | |
| Glass Tint | |
| Self-Cleaning: |
Yes |
| Roof Type |
Flat Roof ,Pitched Roof |
| Skylight Type |
Frameless |
| Top Glass Pane: |
6 mm Planibel Clearlite / Thermally toughened glass EN 12150 |
| Air Gap |
16 mm Argon 90% |
| Middle Glass Pane: |
4 mm Planibel Clearlite / Thermally toughened glass |
| Air Gap |
16 mm Argon 90% |
| Bottom Glass Pane: |
Stratobel Clearlite 44.2 iplus 1.1 pos.5 / Laminated glass with Low-E coating EN 14449 |
| Spacer Type |
15mm Black Warm Edge |
| U value |
0.9 [W/(m².K)] |
| Sound reduction - EN 12758 |
[dB] 39 (-2;-7) |
| Light transmittance: tv [%] |
72 |
| External light refection : ρv [%] |
17 |
| Internal light refection : ρvi [%] |
17 |
| Colour rendering index : Ra [%] |
97 |
| Solar energy transmittance : g [%] |
57 |
| Shading coefcient : SC |
0.66 |
| Selectivity |
1.26 |
| UV transmission : τuv [%] |
0 |
Sold By Manufacturer
44 in stock (can be backordered)
7 in stock (can be backordered)
ACTIVE PROMOTION
Use Code: TODAYONLY
Transform your home with our triple-glazed flat roof skylights, maximizing natural light and thermal efficiency. Pair them with our separately sold Insulated Upstand, featuring 40mm core insulation to cut heat loss and lower energy costs.
Why Choose Our Insulated OSB Upstands?
Perfect Pitch for Water Drainage
Built-In 6° Pitch for perfect drainage
Exceptional Insulation
High Insulation with 40mm core and 15mm OSB
Ready-to-Install, Precision-Cut Fit
Factory-made to match our skylights exactly
Brighten Your Home & Save More – Bundle & Save!
Upgrade with our triple-glazed flat roof skylights for maximum light and energy efficiency.
Add the Insulated Upstand and save up to 7% with our bundle offer!
✔️ Boost thermal performance
✔️ Cut energy costs
✔️ Enjoy lasting durability
Get the complete solution at a better price – bundle today!
Get a Bundle with extra 7% Discount on Skylight and Upstand
Flat Roof Skylight 800 x 1800 mm, Fixed, Frameless, Triple Glazed, 73.20kg, UV 0.9
Original price was: £ 660.00.£ 461.19Current price is: £ 461.19. incl. VAT
Inclined Insulated Upstand for Flat Roof Skylight 800 x 1800 mm
Original price was: £ 328.00.£ 244.03Current price is: £ 244.03. incl. VAT
Before and After
See how a space is completely transformed with a Skylights.co.uk.
- Maximum daylight
- Modern minimalist design
- Superior insulation & UV protection
One change. Total transformation.
Our Roof Windows in Action
Photos from completed projects by our clients
Quick Shipping
Get it fast with our expedited shipping options.
Secure Payment
Shop safely with our secure online checkout.
Easy Returns
Hassle-free returns within 30 days.
20 Year Warranty
Enjoy peace of mind with our extensive warranty.
TILE & MEMBRANE COMPATIBLE
FLAT ROOFS
EASY & SECURE INSTALLATION
Will It Fit My Roof?
1. Flat Roofs
Our skylights are suitable for flat roofs with a minimum pitch of 6° when installed with the correct upstand or flashing kit.
2. Tile & Membrane Compatible
Designed for all common UK roof types – from clay tiles and slate to EPDM, GRP, and bitumen flat roof membranes.
3. Easy & Secure Installation
Each skylight is engineered for watertight, airtight installation. Use our installation kits and add our pre-fabricated upstands for a perfect fit and finish.
FAQ
Our triple-glazed models offer U-values as low as 0.9 W/m²K (whole unit), helping you meet Part L regulations and reduce heat loss.
Yes. All our skylights come with self-cleaning glass as standard to reduce dirt buildup.
Yes. We offer made-to-measure rooflights to fit your exact requirements. Contact us for a custom quote.
Yes. When installed with our official flashing kit and according to instructions, it is guaranteed to be watertight.
Absolutely. Each unit uses toughened outer and laminated inner glass that complies with UK safety standards (EN12150 / EN14449).
We offer a 20-year guarantee on the glazing unit.
Grace Cook –
I spent so much time looking for a frameless skylight in Glasgow. Then I found skylights.co.uk and ordered the 800 x 1800 flat roof skylight. Guess what? It has elevated the entire feel of my room. Very grateful to you guys!