Flat Glass Fixed Rooflight | Skyseal

Skyseal Fixed Aluminium Flat Glass Rooflight

The Skyseal Flat Glass Rooflight is a high-performance, fixed flat rooflight designed to maximise natural daylight while delivering outstanding thermal efficiency. Perfect for home extensions, kitchens, loft conversions and commercial spaces. This slimline flat glass rooflight provides a durable, contemporary solution without compromising strength, insulation or long-term performance.

Available in a wide range of popular sizes, this fixed flat glass rooflight is supplied on a fast 2-3 working day delivery as standard*, with select sizes available for next-day delivery. This makes it one of the quickest and most reliable flat rooflight solutions on the market for builders, installers and homeowners.

Minimalist, Modern Design for Maximum Daylight

Our flat rooflight has been engineered with an ultra-slim aluminium frame to achieve a clean, minimalistic finish. From inside the property, the frame is barely visible, creating a seamless “open sky” view while dramatically increasing the amount of natural light entering the room.

The low-profile design helps the flat glass rooflight blend into any architectural style, making it suitable for both traditional and contemporary buildings.

For those seeking enhanced solar control and a unique aesthetic, blue tinted glass options are also available.

Additional benefits include:

• Increased visible glass area

• Reduced internal framing for a frameless appearance

• Easy cleaning and low maintenance

• Suitable for residential and commercial flat roofs

Robust Aluminium Frame for Strength & Security

The Skyseal flat glass rooflight features a premium aluminium frame designed for maximum rigidity and long-term durability. Its structural strength reduces movement once installed, ensuring the glass remains supported at all times.

Key benefits of the frame include:

• Protects glass at its weakest stress points

• Prevents accidental damage or impact shock

• Factory-sealed units with tamper-proof fixings

• High-performance silicone sealant for superior weathering

• Improved security and resistance against forced entry

The rigid frame construction ensures the flat rooflight performs reliably in all weather conditions while maintaining its sleek, modern appearance.

Exceptional Thermal Performance

Energy efficiency is a key advantage of the Skyseal Flat Glass Rooflight. With a centre-pane U-Value of 1.1 W/m²K, it offers superb insulation that helps maintain comfortable indoor temperatures throughout the year. The advanced glazing and insulated barriers minimise heat loss and prevent cold spots, ensuring greater comfort and reducing condensation risk.

This flat glass rooflight is double glazed with a high-performance laminated inner pane for improved safety, security and heat retention — making it ideal for modern building regulations, including Part L compliance.

Glass Specification (32.4mm Overall | 1.1 W/m²K)

• 6mm toughened outer pane

• 20mm 90% Argon-filled cavity for enhanced insulation

• 6.4mm laminated soft-coat Low-E inner pane for energy efficiency and safety

This construction provides exceptional clarity, thermal performance and acoustic reduction compared to standard flat rooflights. Increased natural daylight from the flat rooflight can also reduce the need for artificial lighting, further improving energy efficiency.

Quick & Simple Installation

Ideal for new builds, extensions or refurbishments, the Skyseal Flat Glass Rooflight is designed with installers in mind. It can be fitted on any suitable flat roof with a minimum 5° fall for optimal drainage.

You can install the flat rooflight directly onto an existing or prepared timber upstand, or choose our 150mm PVC kerb for an even faster, more straightforward installation.

Ideal for:

• Home extensions

• Kitchen renovations

• Garage conversions

• Office buildings

• Commercial properties

Advantages:

• Slim, contemporary design for maximum natural light

• Fast delivery (2-3 working days on most sizes*)

• Thermally efficient double glazing

• Impressive U-values for energy-saving performance

• Impact-resistant laminated glass

• Factory-sealed units for weatherproof protection

• Sustainable & recyclable components

• Excellent value without compromising quality

• Available with a 150mm PVC kerb for easy installation

Flat Rooflight Types and Options

Flat roof windows come in many styles and configurations, making it easy to find the perfect solution for any property. One of the most sought-after designs is the frameless flat glass rooflight, which delivers uninterrupted sky views and maximises natural light transmission.

Frameless flat glass rooflights are available in fixed, solar-powered and electric opening models, allowing you to choose the ideal option for ventilation, fresh air and ease of use. Leading brands such as VELUX offer flat glass rooflight systems that combine sleek design with outstanding energy efficiency and impressive U-values.

For those seeking a unique architectural touch, curved glass rooflights provide a stylish alternative. Their modern profile enhances the look of any flat roof and improves water runoff. Double glazed and triple glazed options are also available across many flat rooflights, delivering excellent insulation, reduced noise and improved energy efficiency.

When privacy is important, you can select privacy glass or glazing with a self-clean coating for low maintenance. Roof lanterns provide a more traditional look for customers who prefer a pitched style, but flat glass rooflights remain one of the most versatile and contemporary solutions on the market.

Flat roof skylights, roof windows and glass rooflights are available in a full range of standard and bespoke sizes. Whether you want to brighten a dark room, create a feature space or add value to your property, there is a flat rooflight to suit every requirement.

With competitive pricing, expert support and a variety of glazing options, choosing the right flat glass rooflight has never been easier. Enjoy the perfect combination of style, performance and natural light in your home.

Frequently Asked Questions

What is the minimum roof pitch required?

A minimum 5° fall is required to ensure proper water drainage across the glass.

Is the rooflight suitable for flat roof extensions?

Yes, the fixed flat glass rooflight is ideal for flat roof extensions, kitchen renovations and commercial spaces.

Does it meet Part L requirements?

Yes, the Skyseal Flat Rooflight offers excellent thermal efficiency and is fully compliant with Part L of the Building Regulations.

What sizes are available?

We offer a wide range of standard sizes, with most flat glass rooflights available for 2-3 day delivery. Bespoke options may be available on request.

Can the rooflight be installed without a kerb?

Yes, the flat rooflight can be fitted directly onto a prepared upstand or used with our 150mm PVC kerb for a quicker installation.

Get Started Today

Ready to brighten your home or project? Choose the Skyseal Flat Glass Rooflight for fast delivery, sleek design and outstanding thermal performance.

Order online now or get in touch with our team for expert advice and trade support.

Advantages:

• Sleek design
• Speedy delivery
• Thermally efficient
• Exceptional U-values
• High-performance impact-resistant glass
• Factory sealed units
• Environmentally friendly (all components are recyclable)
• Competitively priced
• Available with a 150mm PVC kerb

*Please note for rooflights sized 1000mm x 2000mm the lead time is 4-6 working days