Fakro DEF-D U6 Electrically Operated Flat Roof Window

Fakro DEF-D U6 Electrically Operated Flat Roof Window

The Fakro DEF-D U6 Electrically Operated Flat Roof Window is a modern solution for bringing natural daylight, fresh air and convenient automated control into residential and commercial spaces. Designed for everyday ease of use, this electrically operated roof window combines motorised ventilation with excellent thermal insulation, security and a sleek contemporary appearance.

Smart Electric Operation

The DEF-D U6 features an integrated Z-Wave electric control system, allowing the window to be operated remotely for convenient ventilation. The motorised mechanism provides smooth and quiet opening and closing, making it easy to control airflow without having to manually reach the roof window.

Automatic Rain Protection

A built-in rain sensor provides added convenience and protection by automatically closing the window when rain is detected. This means you can enjoy fresh air with greater peace of mind, even when the weather changes unexpectedly.

High-Performance Triple Glazing

The Fakro DEF-D U6 uses DU6 triple glazing with toughened external glass and laminated anti-burglary P2A internal glass. This glazing combination is designed to provide a strong balance of security, durability and thermal insulation. The entire window can achieve a U-value as low as 0.76 W/m²K, helping to reduce heat loss and maintain a more comfortable indoor temperature throughout the year.

Improved Acoustic Comfort

The advanced glazing and tight sealing system help reduce external noise, creating a quieter and more relaxing indoor environment. This makes the DEF-D U6 suitable for a variety of spaces where both natural light and comfortable surroundings are important.

Durable Insulated Construction

The window is supplied with a 150mm multi-chamber UPVC kerb upstand finished in RAL9010 white PVC. This robust construction provides strength and stability while helping to support the window's overall thermal performance.

Contemporary Architectural Finish

The DEF-D U6 combines practical functionality with a modern appearance. Its RAL9005 black aluminium profiles and dark-edge glazing effect provide a clean, contemporary finish that complements modern residential and commercial architecture.

Suitable for Flat Roofs

Designed for flat roofs with pitches between 2° and 15°, the Fakro DEF-D U6 offers flexibility for a wide range of building projects. Its combination of automated operation, natural daylight and ventilation makes it a practical choice for modern flat roof applications.

Available Sizes

The Fakro DEF-D U6 Electrically Operated Flat Roof Window is available in a wide selection of sizes, making it suitable for different rooms, roof layouts and daylighting requirements:

• 600 x 600mm
• 600 x 900mm
• 700 x 700mm
• 800 x 800mm
• 900 x 900mm
• 900 x 1200mm
• 1000 x 1000mm
• 1000 x 1500mm
• 1200 x 1200mm
• 1400 x 1400mm
• 1200 x 2200mm

From the compact 600 x 600mm option through to the large 1200 x 2200mm size, the range provides options for a variety of residential and commercial flat roof installations.

Key Benefits

• Electrically operated design for convenient remote-controlled ventilation
• Integrated Z-Wave motor system
• Automatic rain sensor for added protection
• DU6 triple glazing
• Toughened external glass for durability
• Laminated P2A anti-burglary internal glass
• Whole-window U-value as low as 0.76 W/m²K
• Advanced glazing and sealing for improved acoustic comfort
• 150mm multi-chamber UPVC kerb upstand
• RAL9005 black aluminium profiles with a dark-edge glazing effect
• Suitable for flat roof pitches between 2° and 15°
• Suitable for residential and commercial applications
• Available in 11 different sizes

Frequently Asked Questions

How is the Fakro DEF-D U6 Flat Roof Window operated?

The Fakro DEF-D U6 Electrically Operated Flat Roof Window uses an integrated Z-Wave electric motor system, allowing convenient remote operation. The motorised mechanism makes it easy to open and close the window when ventilation is required.

Does the Fakro DEF-D U6 have a rain sensor?

Yes. The window features an automatic rain sensor that detects rainfall and closes the window when rain is detected. This helps protect the interior from changing weather conditions while providing added convenience.

What sizes are available for the Fakro DEF-D U6?

The Fakro DEF-D U6 is available in 11 sizes: 600 x 600mm, 600 x 900mm, 700 x 700mm, 800 x 800mm, 900 x 900mm, 900 x 1200mm, 1000 x 1000mm, 1000 x 1500mm, 1200 x 1200mm, 1400 x 1400mm and 1200 x 2200mm. This range provides flexibility for different flat roof layouts and daylighting requirements.

At JJ Building Materials, we're committed to supplying quality building products at competitive prices, backed by the service and expertise you'd expect from an established independent merchant. Whether you're a trade professional managing large-scale projects or a homeowner taking on a DIY renovation, we're here to help you find the right products for the job.

As part of the JJ Roofing Supplies Group, we build on decades of experience supplying construction materials across the UK. We've expanded beyond roofing to offer a growing range of building materials, including timber, insulation, landscaping products, plumbing supplies, flooring, doors, bricks, fencing, garden buildings and much more – all available to order online with nationwide delivery.

We work with many of the industry's leading manufacturers to bring you trusted products that meet the highest standards of quality and performance. Our team is passionate about providing excellent customer service, competitive pricing and a straightforward shopping experience from start to finish.

When you shop with JJ Building Materials, you can expect:

• Competitive prices on leading brands and quality products.
• Nationwide delivery across the UK
  
• A constantly expanding range of building and landscaping materials.
  
• Friendly, knowledgeable customer support.
  
• A trusted business backed by the JJ Roofing Supplies Group.
  

Every order is personally reviewed by our experienced team to ensure everything is correct before dispatch. We offer delivery from as little as the next working day on selected products, so please refer to the dark blue Estimated Delivery box above for the expected delivery timeframe for this item.

We work with trusted manufacturers and specialist delivery partners to ensure your order arrives safely and on time. You'll receive tracking details once your order has been dispatched, and if we need to confirm any delivery details, one of our team will contact you directly to keep everything running smoothly.

Roof Tiles & Fittings:

We recommend ordering an additional 10% of roof tiles to allow for any breakages that may occur during delivery or handling. Roof tiles are naturally fragile, and having a few extra on site helps prevent delays and ensures your roofing project can be completed without interruption.

Multiple Products from the Same Supplier

If you're ordering multiple products from the same supplier, your order will be dispatched together once all items are ready. This means the longest lead time will apply.

If you need part of your order sooner, please call us on 01202 113233. We can arrange a split delivery, although an additional shipping charge will apply.