Flat Roof Skylight 800 x 800 mm Original price was: £ 546,00.Current price is: £ 420,00. incl. VAT
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Flat Roof Skylight 800 x 1200 mm Original price was: £ 710,00.Current price is: £ 485,00. incl. VAT

Flat Roof Skylight 800 x 1000 mm

Original price was: £ 592,00.Current price is: £ 464,00. incl. VAT

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Regal Glass Group: A trusted manufacturer of premium roof windows

Type: Fixed Frameless Flat Roof Skylight
Internal Size: 800 x 1000 mm
External Size: 1000 x 1200 mm
Glazing Type: Triple Glazed
Net Weight: 42.40kg
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.

This item: Flat Roof Skylight 800 x 1000 mm
Original price was: £ 592,00.Current price is: £ 464,00. incl. VAT
Original price was: £ 592,00.Current price is: £ 464,00. incl. VAT
Original price was: £ 663,00.Current price is: £ 563,00. incl. VAT
£ 54,00 incl. VAT
£ 24,00 incl. VAT
£ 15,00 incl. VAT
£ 30,00 incl. VAT

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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.

Introducing the Flat Roof Skylight 800 x 1000 mm, a premium offering from Regal Glass Group, where quality meets innovation. This skylight is a testament to our commitment to excellence, with each unit proudly produced in-house, ensuring the highest standards of quality and craftsmanship. Designed to flood your flat-roofed areas with natural daylight, this skylight window is a perfect fusion of form and function.

Engineered with superior triple-glazed units, this skylight achieves remarkable thermal efficiency, demonstrated by its U-value of 0.9 W/m²K. This outstanding performance is attributed to the 15-millimeter warm Edge spacer, filled with Argon gas, placed between the glass panes to significantly reduce heat transfer, thereby maintaining an optimal indoor climate regardless of external weather conditions.

A distinctive feature of the Flat Roof Skylight 800 x 1000 mm is its in-house production. By controlling every step of the manufacturing process, we ensure that each skylight meets our rigorous quality standards, from the choice of materials to the final assembly. This approach allows us to provide products that not only enhance the aesthetics of your space but also offer unparalleled reliability and longevity.

The skylight’s frameless design contributes to a sleek, contemporary look, maximizing the influx of natural light and transforming your interiors into brighter, more welcoming spaces. Furthermore, the self-cleaning feature, activated by sunlight, minimizes maintenance requirements, ensuring the glass remains clear and your views spectacular.

Designed for flexibility, this skylight can be installed at pitches from 6° to 45°, making it a versatile choice for a variety of architectural designs. In addition to its visual appeal, the skylight also offers sound insulation, UV protection, and is constructed with safety toughened glass, enhancing both the security and durability of your installation.

Compliant with British Standards & Building Regulations, the Flat Roof Skylight 800 x 1000 mm comes with all necessary Safety Markings and is CE marked, signifying its compliance with the essential EU directives and standards for products sold within the European Economic Area.

At Regal Glass Group, we understand the importance of choice and customization. That’s why, in addition to our range of standard size skylights that are readily available in stock, we proudly offer custom skylight solutions tailored to your unique requirements. Whether you’re enhancing a residential space or illuminating a commercial venue, our skylights are designed to bring light, elegance, and efficiency to any setting.


42 kg


125 × 10 × 105 cm


Regal Glass


Regal Glass Group Ltd

Internal Size

800 x 1000 mm

External Size

1000 x 1200 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 [%]



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