Flat Roof Skylight 300 x 300 mm, Fixed, Frameless Triple Glazed, 6.45kg, UV 0.9 Original price was: £ 185,00.Current price is: £ 120,00. incl. VAT
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Flat Roof Skylight 500 x 500 mm, Fixed, Frameless, Triple Glazed, 14.85kg, UV 0.9 Original price was: £ 280,00.Current price is: £ 212,00. incl. VAT

Flat Roof Skylight 400 x 400 mm, Frameless Triple Glazed, 10.20kg, UV 0.9

(8 customer reviews)

Original price was: £ 274,00.Current price is: £ 186,00. incl. VAT

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£ 39,00 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
Estimated delivery dates: 11th Dec - 17th Dec

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Description

Our Flat Roof Skylights are composed of three distinct glass panes, each contributing to the unit’s durability and thermal efficiency:

  • Top Pane: 6 mm Planibel Clearlite / Thermally toughened glass, compliant with BS EN 12150
  • Middle Pane: 4 mm Planibel Clearlite / Thermally toughened glass, compliant with BS EN 12150
  • Bottom Pane: Stratobel Clearlite 44.2 iplus 1.1 / Laminated glass with Low-E coating, compliant with EN 14449

Premium Flat Roof Skylights

Are you thinking of adding a skylight but worried about heat loss? Our Flat Roof Skylight, measuring 400 x 400 mm, boasts an impressive U-value of 0.9 W/m²K, thanks to its triple-glazed units and warm edge spacer technology. This means superior insulation, keeping your space cosy in winter and pleasantly cool in summer while enjoying abundant natural light!

Why Choose Our Frameless Flat Roof Windows

  • Energy Efficiency: Triple-glazed units and warm edge spacer technology offer outstanding thermal performance. With a U-value of 0.9 W/m²K, your space remains comfortable year-round, reducing energy bills.
  • Unobstructed Views: The frameless design maximizes natural light, offering breathtaking panoramic sky views.
  • Self-Cleaning Convenience: Maintenance is effortless with a sunlight-activated self-cleaning feature that keeps the glass spotless.
  • Versatile Installation: It is suitable for flat roofs with pitches between 6° and 45°, making it an excellent fit for many homes.
  • Peaceful Ambiance: Provides effective soundproofing for a quieter indoor environment.
  • Sun Safety: Offers protection against harmful UV rays.
  • Safety First: Constructed with safety-toughened glass for ultimate peace of mind.
  • Regulation Compliant: Meets all British Standards & Building Regulations and carries the CE safety marking.

Essential Skylight Accessories

Enhance your flat roof skylight experience with these essential add-ons for a seamless skylight installation and optimal performance:

  • Installation Kit for 1 x Flat Roof Skylight 400x400mm: This complete kit provides everything needed for a secure and stress-free installation, ensuring optimal performance and lasting enjoyment of your skylight.
  • Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls): This high-quality tape offers effective sealing and crucial support during installation for a secure fit.
  • Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml: This durable sealant creates a watertight seal around your skylight, keeping the elements out and ensuring a comfortable indoor environment.
  • Self-Cleaning Liquid Smart Glass Bottle 15ml: This special solution replenishes the skylight’s self-cleaning properties, ensuring effortless maintenance and sparkling glass with minimal effort.

Choose Regal Glass Skylight Windows

We offer a variety of standard sizes readily available for purchase, along with custom skylights to suit your specific needs.

No matter the project, our flat roof lights provide:

  • Exceptional Thermal Performance: Enjoy outstanding energy efficiency thanks to innovative features like triple glazing, keeping your space comfortable year-round.
  • Natural Light Abundance: Bathe your space in beautiful natural light with our skylights, creating a brighter and more inviting atmosphere.
  • Elegant Design: Add a touch of sophistication to any setting with our sleek and modern flat roof lights.

Download our full product catalogue to explore our extensive Flat Roof skylight range and find the perfect solution for your project.

Ready to discuss your skylight needs? Contact us today!

Top-Rated 400 x 400 mm Flat Roof Skylights Near Me

Regal Glass Group offers flat roof skylights, including easy-to-install 400x400mm options with installation kits! Brighten your space fast with natural light.

Additional information
Weight 10,2 kg
Dimensions 65,0 × 10,0 × 65,0 cm
Brand

Regal Glass

Manufacturer

Internal Size

400 x 400 mm

External Size

600 x 600 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 glass EN 12150

Air Gap

16 mm Argon 90%

Middle Glass Pane:

4 mm Planibel Clearlite / Thermally toughened glass

Air Gap

16 mm Argon 90%

Bottom Glass Pane:

Stratobel Clearlite 44.2 iplus 1.1 pos.5 / Laminated glass with Low-E coating EN 14449

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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8 reviews
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8 reviews for Flat Roof Skylight 400 x 400 mm, Frameless Triple Glazed, 10.20kg, UV 0.9

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  1. Isabella Evans

    We chose a 400 x 400 mm skylight for our small bathroom, and it’s our best decision. The natural light it lets in makes the space feel so much larger and more welcoming. Regal Glass Group’s quality is superb!

  2. Daniel Fisher

    The skylight was easy to install.

  3. Peter Armstrong

    Bought a skylight for my client’s kitchen. Good quality and easy to install.

  4. James Brooks

    Happy with the skylight in our kitchen. It’s bright and functional.

  5. Sarah McAllister

    Living in Liverpool, we love how the flat roof skylight has brought natural light into our kitchen. It’s well-made and really enhances the space.

  6. Cameron Fraser

    The flat roof skylight has made such a difference in our Manchester home. It brings in so much light and looks great in our modern extension.

  7. Isabelle Morgan

    Fantastic product! The skylight has brought so much light into our home, and the customer support was extremely helpful. Delivery was very quick too.

  8. Thomas Webb

    We’re really impressed with the quality of the skylight. It makes the entire room feel brighter and more spacious. Quick delivery and great technical support!

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