Flat Roof Skylight 600 x 1200 mm Original price was: £ 525,00.Current price is: £ 475,00. incl. VAT
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Flat Roof Skylight 600 x 1800 mm Original price was: £ 563,00.Current price is: £ 493,00. incl. VAT

Flat Roof Skylight 600 x 1500 mm

Original price was: £ 526,00.Current price is: £ 460,00. incl. VAT

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Regal Glass Group: A trusted manufacturer of premium roof windows

Type: Fixed Frameless Flat Roof Skylight
Internal Size: 600 x 1500 mm
External Size: 800 x 1700 mm
Glazing Type: Triple Glazed
Net Weight: 47.40kg
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.

Original price was: £ 495,00.Current price is: £ 369,60. incl. VAT
Original price was: £ 696,00.Current price is: £ 596,00. incl. VAT
£ 69,00 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.

Discover the Flat Roof Skylight 600 x 1500 mm from Regal Glass Group, crafted to not only illuminate your interiors with natural daylight but also to significantly enhance the sense of space within any room. This elegantly designed skylight window is the epitome of form meeting function, offering unparalleled benefits for flat-roofed applications.

Constructed with the latest in triple-glazed technology, this skylight stands out for its exceptional thermal efficiency, boasting a U-value of 0.9 W/m²K. This impressive performance is achieved through a 15-millimeter warm Edge spacer, filled with Argon gas, situated between the glass panes to effectively minimize heat transfer, thereby maintaining a comfortable indoor atmosphere year-round.

One of the key features of the Flat Roof Skylight 600 x 1500 mm is its ability to create a greater sense of space. The infusion of natural light from above can transform smaller, cramped areas into open, airy environments, making rooms feel more expansive and welcoming. This effect is further enhanced by the skylight’s frameless design, which provides a sleek, modern aesthetic that complements any architectural style while maximizing the entry of daylight.

Equipped with a self-cleaning mechanism activated by sunlight, maintenance becomes a breeze, ensuring the glass remains clear and the views unobstructed without the need for frequent cleaning.

This skylight is adaptable to a variety of installations, suitable for angles ranging from 6° to 45°, and it seamlessly integrates into diverse architectural designs. Alongside its space-enhancing qualities, the skylight also offers sound insulation, UV protection, and is constructed with safety toughened glass, adding an extra layer of security to your installation.

Fully compliant with British Standards & Building Regulations, the Flat Roof Skylight 600 x 1500 mm includes all necessary Safety Markings and is CE marked, confirming its compliance with the essential EU directives and standards for product quality and safety.

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.


47 , 40 kg


175 × 10 × 85 cm


Regal Glass


Regal Glass Group Ltd

Internal Size

600 x 1500 mm

External Size

800 x 1700 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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