FAKRO DEF-D Electric Modular Quad Glazed Flat Roof Window

Product Code:
Est. Delivery: Select option below
Shipping costs displayed in basket.
We can let you know when this product is back in stock.

This product is proving to be very popular and has unfortunately sold out.

Enter your email below and we'll notify you as soon as this product is back in stock:

Subject to stock availability, if products on a 24 hours service are ordered alongside products NOT on a 24 hours service, this may delay your whole order.

View Transport Policy

All delivery charges are included in the final shopping basket and are dependent on the products Scottish Highlands & the Islands where additional shipping charges will apply.

Please note that not all products will incur an additional delivery charge to the Scottish Highlands & the Islands – this is based on the costs from the manufacturer, distributor or courier providing shipping on our behalf. If your delivery address is in the Scottish Highlands and Islands, a member of our helpline team will contact you prior to processing your order should an additional delivery charge apply.

While we make every effort to ensure orders are delivered by the date required, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules.

Any variation to web delivery date given will be advised to you by email or telephone. If we are unable to make delivery because access is not possible, we reserve the right to make a failed delivery charge.

£1,492.04 Incl. VAT
Oops! Please select from the options

Product Description

This quad glazed electric flat roof window can be installed on any flat roof that is between 2 and 15 degrees. It is important to ensure the roof has a pitch of a minimum of 2 degrees to ensure that water runs off efficiently, and does not pool on the flat roof window.

This FAKRO flat roof window is operated electrically, using the FAKRO Z-wave wireless system. The Z-wave system is FAKRO’s wireless control system that allows the control of any electrical devices that are manufactured by FAKRO. This means that the flat roof window can be controlled using the same control panel or remote control as the window blind, or other FAKRO roof windows.

Maximise daylight

The key feature of the FAKRO electric modular window is to bring natural daylight into the room, and this FAKRO window has been carefully designed to maximise the amount of sunlight that passes through. The sash and frame has been precisely designed to ensure they do not obstruct any light, and as a result this FAKRO window allows up to 16% more sunlight through than other similar roof windows from other manufacturers.


Due to the electric operation of the flat roof window, the FAKRO modular flat roof window is a source of natural ventilation as well as natural daylight. By opening the FAKRO modular quad glazed window, you create a flow of fresh air which improves the internal comfort of the environment.

Minimise heat loss

Another key feature of the FAKRO electric modular flat roof window is the glazing. The flat roof window offers P2 laminated quad glazing, which includes a layer of glass on the outside, with an argon gas cavity, as well as a 6.2mm internal glass pane with a low emission coating.

The glazing is combined with a uPVC upstand, which has a multi-chamber design. This combined with the quad glazing creates an incredibly thermally efficient flat roof window.

Ease of installation

This electric modular rooflight is supplied with a kerb for easy installation. Additionally, a specially profiled material sits beneath the drip cap of the frame to create a tight finish between the roof window and the roof.

If required, an additional base can be used to increase the height of the window. This is perfect for green roofs and other circumstances where the roof window needs to be mounted by 15cm.

Product Documents

There are no product documents to show.


WIDTH 900mm LENGTH 600mm


Size 600mm x 900mm
800mm x 800mm
900mm x 900mm
900mm x 1200mm
1000mm x 1000mm
1000mm x 1500mm
1200mm x 1200mm
600mm x 600mm
Operation Electric Glazing Energy Efficient Glazing Style Flat
Glazing Tint Clear Tint Material Glass

Products We Recommend


Questions & Answers

There are currently no questions for this product.

Product Enquiry Form

FAKRO DEF-D Electric Modular Quad Glazed Flat Roof Window

*Required Field

Would you like to empty your basket?

Yes No


It seems you are running an older version of Internet Explorer. Our site does not support these old browsers as they do not house the technology that allows our site to be safe and secure.

If you wish to access our site please either upgrade your browser or download an alternative.