Electric Opening Skylight 1200 x 1200mm Original price was: £ 3.336,00.Current price is: £ 3.236,00. incl. VAT
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Flat Roof Skylight 400 x 2000 mm, Fixed, Frameless, Triple Glazed, 45kg, UV 0.9 Original price was: £ 657,00.Current price is: £ 430,00. incl. VAT

Flat Roof Skylight 400 x 1500 mm, Fixed, Frameless, Triple Glazed, 34kg, UV 0.9

(6 customer reviews)

Original price was: £ 515,00.Current price is: £ 367,00. incl. VAT

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Regal Glass Group: A trusted manufacturer of premium roof windows

Type: Fixed Frameless Flat Roof Skylight
Internal Size: 400 x 1500 mm
External Size: 600 x 1700 mm
Glazing Type: Triple Glazed
Net Weight: 34kg
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.

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Original price was: £ 730,00.Current price is: £ 605,88. incl. VAT
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£ 54,00 incl. VAT
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£ 24,00 incl. VAT
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£ 15,00 incl. VAT
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£ 30,00 incl. VAT

For Extra Discount Use Code: TODAYONLY

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Description

Premium Flat Roof Skylights

Thinking about installing a skylight but worried about heat loss? Our Flat Roof Skylight measuring 400 x 1500 mm offers:

  • An impressive U-value of 0.9 W/m²K
  • Triple-glazed units for superior insulation
  • Warm edge spacer technology
    This ensures your space stays warm in winter and cool in summer while letting in abundant natural light.

Why Choose Our Frameless Flat Roof Windows

  • Energy Efficiency: Benefit from exceptional thermal performance with our triple-glazed units and warm edge spacer technology, resulting in a U-value of 0.9 W/m²K for consistent comfort and reduced energy expenses.
  • Unobstructed Views: The frameless design maximizes natural light penetration and offers stunning panoramic sky views.
  • Self-Cleaning Feature: Enjoy easy maintenance with a sunlight-activated self-cleaning feature that keeps your glass sparkling clean.
  • Versatile Installation: Ideal for flat roofs with pitches between 6° and 45°, fitting various home styles.
  • Quiet Ambiance: Effective soundproofing ensures a peaceful indoor environment.
  • UV Protection: Safeguards your interior from harmful UV rays.
  • Safety First: Constructed with safety-toughened glass for enhanced security.
  • Regulation Compliant: Fully compliant with British Standards & Building Regulations and carries the CE safety marking.

Essential Skylight Accessories

Upgrade your flat roof skylight setup with essential accessories for smooth skylight installation and optimal performance:

  • Skylight Blinds for Flat Roof Window 400x1500mm: Custom-fit blinds provide light control and privacy, tailored specifically for your skylight size.
  • Installation Kit for 1 x Flat Roof Skylight 400x1500mm: A comprehensive kit for secure and hassle-free installation, ensuring optimal performance and durability.
  • Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls): Offers 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: Replenishes the self-cleaning properties of your skylight, ensuring easy maintenance and spotless glass.

Choose Regal Glass Skylight Windows

We provide a variety of standard sizes available for immediate purchase, along with custom skylights tailored to your specific requirements. Our flat rooflights deliver exceptional thermal performance with innovative features like triple glazing, ensuring your space remains comfortable throughout the year. They also allow an abundance of natural light to enhance your room, creating a bright and inviting atmosphere. With sleek, modern designs, our flat rooflights add a touch of sophistication to any setting.

Download our full product catalogue to explore our extensive range of flat roof skylights and find the perfect solution for your project.

Ready to discuss your skylight needs? Contact us today!

I need to find 400 x 1500 mm flat roof skylights near me today

You can find triple-glazed, self-cleaning energy-efficient 400×1500 flat roof windows at the Regal Glass Group online shop. Enjoy next-day delivery for the London area.

Additional information
Weight 108 kg
Dimensions 205 × 10 × 145 cm
Brand

Regal Glass

Manufacturer

Internal Size

400 x 1500 mm

External Size

600 x 1700 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

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 [%]

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

Shipping & Delivery

Delivery Times:

  • Standard Size Flat & Pitched Skylights: Typically delivered within 3 to 6 working days.
  • Custom Size Orders: Production and delivery to the UK take approximately 3 to 6 weeks. Delivery is free of charge.
  • Roof Lanterns: Delivered within 10-14 working days from the date of order.
  • Framed Skylights: Delivered within 10-14 working days from the date of order.
  • Electric Opening Skylights: Delivered within 10-14 working days from the date of order.
  • Walk-On Skylights: Delivered within 10-14 working days from the date of order.
  • Skylight Blinds: Delivered within 10-14 working days from the date of order.

Delivery Hours:

  • Monday to Friday, between 8 am and 5 pm.

Once your payment has been processed, we will contact you to arrange a convenient delivery time.

Placing an Order: To view delivery costs, please add your desired products to the cart and enter the shipping address.

Delivery Areas:

  • Within London (M25): Our dedicated drivers ensure safe delivery. Please ensure that you or your builders are present to accept the delivery, as our drivers work alone and the vehicles are pre-loaded.
  • Outside London (M25): We utilize an external shipping network. The courier will contact you to schedule a suitable delivery time.
  • Extra Economy Shipping: Available for all areas except Northern Ireland and Scotland. In rare cases, delivery may be to a local depot if suitable vehicles are unavailable.

Important Notes:

  • Many of our products are heavy, ranging from 10kg to 280kg. Depending on the size and weight, additional help may be required for unloading (2-6 people).
  • We are not liable for any damage during unloading. It is the customer's responsibility to manage this process.
  • If no one is present to receive the delivery, our driver will attempt to contact you via phone, text, or voicemail. If contact cannot be made, the product will be returned to our warehouse.

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.

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
100%
Solar energy transmittance (G value): g [%] 65
65%
UV transmission : 0 τuv [%]
0%
Light transmittance: τv [%] 72
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.

Reviews

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6 reviews
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6 reviews for Flat Roof Skylight 400 x 1500 mm, Fixed, Frameless, Triple Glazed, 34kg, UV 0.9

Clear filters
  1. Benjamin Stewart

    The bespoke skylight for our staircase from Regal Glass is simply breathtaking. Highly recommend! Plus London delivery was express!

  2. Adam Turner

    The light that floods in through our roof window has made our staircase a centerpiece in the home. Exceptional product!

  3. Amelia wilson

    The skylight in our small kitchen has made all the difference. It’s incredible how it opens up the space. Kudos to Regal Glass Group for their excellent work in Liverpool!

  4. Noah Brown

    The bespoke skylight we got for our bedroom has exceeded all our expectations. The quality and service from Regal Glass Group are outstanding.

  5. Rory Carter

    I never imagined how much a kitchen skylight could change our home’s ambiance. The folks at Skylights.co.uk were incredibly helpful in guiding us through the process.

  6. Henry Green

    The installation of a kitchen skylight has transformed our space. Cooking under the natural light has never been more enjoyable. Kudos to Regal Glass for their exceptional products and service.

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