Pitched Roof Skylight 800 x 2500 mm Original price was: £ 819,00.Current price is: £ 769,00. incl. VAT
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Pitched Roof Skylight 1200 x 2000 mm Original price was: £ 1.436,00.Current price is: £ 1.336,00. incl. VAT

Flat Roof Skylight 1200 x 2000 mm

Original price was: £ 1.456,00.Current price is: £ 1.336,00. incl. VAT

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Regal Glass Group: A trusted manufacturer of premium roof windows

Type: Fixed Frameless Flat Roof Skylight
Internal Size: 1200 x 2000 mm
External Size: 1400 x 2200 mm
Glazing Type: Triple Glazed
Net Weight: 107kg
U Value: 0.9 W/m²K
G Value: 58%
Light transmittance : τv [%] 72
Sound reduction (EN 12758): 39dB
UV transmission : τuv [%] 0

Experience the excellence of Regal Glass Group’s roof windows, featuring these impressive technical characteristics.

Original price was: £ 777,00.Current price is: £ 677,00. incl. VAT
£ 84,00 incl. VAT
£ 24,00 incl. VAT
£ 15,00 incl. VAT
£ 30,00 incl. VAT

Payment Methods:

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Secure Payment

Shop safely with our secure online checkout.

Easy Returns

Hassle-free returns within 30 days.

10 Year Warranty

Enjoy peace of mind with our extensive warranty.

Frameless Skylights Glass Performance

Experience the perfect blend of natural light, energy efficiency, noise reduction, and UV protection with our precision-engineered glass.

Modern Design
Solar energy transmittance (G value): g [%] 65
UV transmission : 0 τuv [%]
Light transmittance: τv [%] 72
Thermal transmittance (U value): : 0.9 [W/(m².K)]
Min 3.0 [W/(m².K)] / Max 0.1 [W/(m².K)] 70%
Shading coefficient: 0.66 SC
( Maximum SC 1.00 / Maximum SC 0.20 ) 42%
Sound Reduction: 39 dB (-2;-7)
( Maximum 40dB / Minimum 30dB ) 90%

Easy to replicate
Installation Guide

Dive into our user-friendly Installation Guide for a smooth skylight setup. Get the clarity you need, step-by-step.

Click below to explore the full guide.

Discover the elegance and functionality of the Flat Roof Skylight 1200 x 2000 mm, brought to you by Regal Glass Group, a leader in the field of skylights and flat roof windows. With over two decades of dedicated craftsmanship, this skylight window not only floods your space with natural light but also offers the assurance of a 20-year warranty, exemplifying our commitment to quality and durability.

Produced in our specialized in-house facilities, each Flat Roof Skylight is a testament to our use of premium quality materials and our pursuit of excellence. The 1200 x 2000 mm model, with its sleek and frameless design, seamlessly integrates into your flat roof, providing a modern aesthetic while maximizing the influx of daylight, thereby transforming your interior spaces.

The standout feature of this skylight is the 20-year warranty, offering you peace of mind in the lasting value and performance of your investment. This skylight also boasts triple-glazed units with a U-value of 0.9 W/m²K, ensuring optimal thermal efficiency, which contributes to a comfortable indoor environment and energy savings.

Our skylights come with the innovative self-cleaning glass, reducing the need for maintenance and ensuring your view remains unobstructed. The Regal Glass Group offers an extensive selection of standard sizes to meet diverse needs, and for those seeking a custom solution, our bespoke skylights are tailored to fit your specific architectural requirements. The Flat Roof Skylight 1200 x 2000 mm, backed by our 20-year warranty, is designed to enhance your home with natural light, combining longevity, energy efficiency, and elegant design.


108 kg


205 × 10 × 145 cm


Regal Glass


Regal Glass Group Ltd

Internal Size

1200 x 2000 mm

External Size

1400 x 2200 mm

Glazing Type

Triple glazed

Glass Tint

Clear Tint



Roof Type

Flat Roof , Pitched Roof

Skylight Type


Top Glass Pane:

6 mm Planibel Clearlite / Thermally toughened

Air Gap

16 mm Argon 90%

Middle Glass Pane:

4 mm Planibel Clearlite Thermally toughened

Air Gap

16 mm Argon 90%

Bottom Glass Pane:

Stratobel Clearlite 44.2 with iplus 1.1 pos.5

Spacer Type

15mm Black Warm Edge

U value

0.9 [W/(m².K)]

Sound reduction - EN 12758

[dB] 39 (-2;-7)

Light transmittance: tv [%]


External light refection : ρv [%]


Internal light refection : ρvi [%]


Colour rendering index : Ra [%]


Solar energy transmittance : g [%]


Shading coefcient : SC




UV transmission : τuv [%]



1 review

1 review for Flat Roof Skylight 1200 x 2000 mm

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  1. Morris Green

    We went for an electric opening skylight in our living room, and the difference is night and day!

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