

Flat Roof Skylight 1500 x 2000 mm, Fixed, Frameless, Triple Glazed,179.80kg, UV 0.9
£ 2.079.00 Original price was: £ 2.079.00.£ 1.560.00Current price is: £ 1.560.00. incl. VAT
Prices go up when the timer hits zero.
19 in stock (can be backordered)
Skylights.co.uk: Trusted rooflights. Built to prevent leaks.
Type: Fixed Frameless Flat Roof Skylight
Internal Size: 1500 x 2000 mm
External Size: 1700 x 2200 mm
Glazing Type: Triple Glazed
Net Weight: 179.80kg
U Value: 0.9 W/m²K
G Value: 58%
Light transmittance : τv [%] 72
Sound reduction (EN 12758): 39dB
UV transmission : τuv [%] 0
Toughened safety 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: 8 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: 8 mm Planibel Clearlite / Thermally toughened glass BS EN 12150
Premium Flat Roof Skylights
Thinking about installing a rooflights for flat roof but concerned about heat loss? Our Flat Roof Skylight in 1500 x 2000 mm offers an outstanding U-value of 0.9 W/m²K, thanks to its triple-glazed units and warm edge spacer technology. This provides excellent insulation, keeping your space warm in winter and cool in summer, all while allowing in plenty of natural light!
Why Choose Our Frameless Flat Roof Windows
- Energy Efficiency: Enjoy top-notch thermal performance with triple-glazed units and warm edge spacer technology, achieving a U-value of 0.9 W/m²K for consistent comfort and reduced energy costs.
- Unobstructed Views: The frameless design maximizes natural light and offers stunning panoramic sky views.
- Self-Cleaning Feature: Keep your glass spotless with a sunlight-activated self-cleaning feature for hassle-free maintenance.
- Versatile Installation: Suitable for flat roofs with pitches between 6° and 45°, making it a versatile choice for many homes.
- Peaceful Environment: Effective soundproofing ensures a quieter indoor space.
- Sun Protection: Shields your interior from harmful UV rays.
- Safety First: Made with safety-toughened glass for maximum security.
- Regulation Compliant: Fully compliant with British Standards & Building Regulations and carries the CE safety marking.
Essential Skylight Accessories
Upgrade your rooflight with these essential add-ons for smooth skylight installation and optimal performance:
- Skylight Blinds for Flat Roof Window 1500x2000mm: Custom-fit blinds provide light control and privacy, tailored specifically for your skylight size.
- Installation Kit for 1 x Flat Roof Skylight 1500x2000mm: A complete kit for secure, straightforward installation, ensuring optimal performance and longevity.
- Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls): Provides 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: Restores 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 2000 x 1500 mm skylight (also known as 2 x 1.5 m roof light), as well as fully custom skylights designed to enhance your space:
- Exceptional Thermal Performance: Triple glazing ensures outstanding insulation and year-round comfort.
- Natural Light Abundance: Floods your interior with beautiful natural light, enhancing the ambiance.
- Elegant Design: Sleek, modern designs that complement any architectural style.
Download our full product catalogue to discover more about our extensive range of rooflight windows and find the perfect solution for your project.
Ready to discuss your skylight needs? Contact us today!
🗺️ Where to Buy 1500 x 2000 mm Roof Lights Near Me
Looking for 1500 x 2000 mm roof light near you? Also known as a 1.5 x 2 m large skylight, this panoramic format fills interiors with daylight—ideal for rear extensions, creative studios, or commercial builds. We design and delivers flat rooflights that blend modern glazing performance with timeless elegance.
✅ Installer Advice Available – Speak to an Expert
✅ 20-Year Warranty – Manufacturer-Backed Quality
✅ Custom Sizes & Bespoke Finishes
✅ UKCA Certified – Full Building Regulation Compliance
✅ Fast, Reliable Delivery Across the UK
Engineered for large-scale openings and built to last, our skylights combine strength, simplicity, and design-led performance.
Weight | 179.80 kg |
---|---|
Dimensions | 225 × 10 × 175 cm |
Brand |
Skylights.co.uk |
Internal Size |
1500 x 2000 mm |
External Size |
1700 x 2200 mm |
Glazing Type | |
Glass Tint | |
Self-Cleaning: |
Yes |
Roof Type |
Flat Roof ,Pitched Roof |
Skylight Type |
Frameless |
Top Glass Pane: |
8 mm Planibel Clearlite / Thermally toughened glass EN 12150 |
Air Gap |
16 mm Argon 90% |
Middle Glass Pane: |
6 mm iplus 1.1 pos.5 Thermally toughened glass with Low-E coating EN 12150 |
Air Gap |
16 mm Argon 90% |
Bottom Glass Pane: |
8 mm Planibel Clearlite / Thermally toughened glass EN 12150 |
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
19 in stock (can be backordered)
24 in stock (can be backordered)
ACTIVE PROMOTION
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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 1500 x 2000 mm, Fixed, Frameless, Triple Glazed,179.80kg, UV 0.9
Inclined Insulated Upstand for Flat Roof Skylight 1500 x 2000 mm


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.
Harry Collins –
I am very pleased with the flat roof windows. The quality is superior and the delivery was very fast. Highly recommended.
Ella Rogers –
The flat roof windows are of exceptional quality. The customer service is very responsive and the delivery was fast.
Jacob Price –
The flat roof windows have greatly improved the lighting in our house. Very satisfied with my purchase.
Emily Bennett –
I am very happy with the flat roof windows. The quality is premium and the customer service very attentive.
Oscar Brooks –
The flat roof skylights have transformed our interior. The quality is incredible and the delivery was quick.
Grace Powell –
The flat roof windows arrived in perfect condition and the quality is exceptional. Very good purchase.
Megan MacPherson –
In Leeds, the flat roof skylight has completely transformed our home office. The natural light makes it such a great space to work in.”