Roof Window and Loft Ladder News

Anatomy of a Flat Roof Window

07 March 2019 | Knowledge Hub
flat roof window

Flat Roof Windows – Which one is right for your home?

The engineering behind the FAKRO flat roof window range is both detailed in its design yet simple in its operation. The windows are designed and manufactured to prioritise functionality while never compromising on aesthetics, ease of use or installation. If you’re struggling to choose the perfect flat roof window solution for your home - you’ve come to the right place.

Here is a simple walk through to help you decide:

FAKRO Flat Roof Window Features & Benefits –


Safety and Security: All FAKRO flat roof windows boast a high level of impact resistance, thus maximising operational safety of the product.

Natural Light: Ensuring that the maximum amount of light possible is supplied through our windows is a fundamental element of our design. FAKRO flat roof windows feature a larger glazing area than other manufacturers systems. As a consequence, your interior will benefit from maximum sunlight throughout the year.


Window 2

Flat Roof Window



Unconventional Sizes: It should also be noted that here at FAKRO, our type F windows can be customised and manufactured in non-standard dimensions – enabling an abundance of flexibility in the design and planning process of buildings. Choose your size here >


Accessories: In terms of accessories, FAKRO offers a vast range. The installation of customised external/internal accessories improves both functionality and aesthetic appearance of roof windows. For example, our external blinds can help prevent overheating, while internal accessories enhance the look and deliver privacy. Additionally, our electrically operated flat roof windows contain sensors which automatically trigger the closing mechanism when rain is detected.Discover our wide range of accessories here >

flat roof window

flat roof window

Flat Roof Window TYPES

Type ‘F’ Flat Roof Windows

Our D_F collection of roof windows are characterised by…

  • Exceptional thermal insulation qualities.
  • Innovative design.
  • Suitable for roof pitches between 2° and 15°.
  • Available in 200+ colours.
  • Design allows for both external/internal accessories.
  • DXF – Non-opening version available.
  • DMF – Manual opening version.
  • DEF – Electrically operated version.

TypeF roof window

See the D_F Collection here >

Type ‘G’ Flat Roof Windows

Alternatively, our D_G collection are characterised by…

  • Technologically advanced – smart aesthetics.
  • Structure and design of window allows for installation of internal accessories.
  • Suitable for roof pitches between 5° to 15°.
  • DXG – Non-opening version.
  • DMG – Manual opening version.
  • DEG – Electrically operated version.

TypeG roof window

See the D_G Collection here >

Walk-On Flat Roof Windows

Our DXW window are characterised by…

  • Non-opening.

  • Surface level flush with roof.
  • Special coating to minimise risk of slipping.
  • Enhanced load capacity.
  • High resistance to break-in attempts due to its reinforced design.
  • Reduced heat loss.
  • Modern design and high-quality finish.
  • Quick and easy installation.
  • Solid weight bearing construction.

Walk on roof window

See the collection of walk on windows here >

Domed Flat Roof Windows

Our domed flat roof window collection is characterised by…

  • Wide variety of sizes.
  • Provides an abundance of natural light.
  • Design allows for installation of internal and external accessories.
  • Ideal for a roof pitch between 0° and 15°.
  • DXC – Non-opening version.
  • DMC – Manual opening version.
  • DEC – Electrically operated version.

Domed roof window

See the domed roof window collection here >

Smoke Ventilation Flat Roof Windows

Our smoke ventilation roof windows are characterised by…

  • Extraction of smoke and heat emitted in a building during a fire.
  • Suitable for roof pitches between 0° and 15°.
  • DSF – Smoke ventilation flat roof window.
  • DSC – Smoke ventilation flat roof domed window.

Smoke vent roof window

See our smoke ventilation flat roof windows here >

Flat Roof Access Windows

Our flat roof access windows are characterised by…

  • Safe and convenient roof access.
  • Insulated frame constructed of PVC profiles.
  • Opening system ensures easy operation of sash.
  • Gas springs add stability in open position.
  • DRF – Flat access roof light without a dome.
  • DRC – Flat access roof light with a dome.
  • DRL + LML – Roof access door compatible with a loft ladder.​
  • Offers great structural durability and comes in a range of sizes, allowing you to select the perfect combination with your loft ladder.

Access roof window

See access roof windows here >

Flat Roof Window Anatomy

Taking a closer look at the innovations in FAKRO Flat Roof Technology.

Anatomy of a flat roof window

When you’re ready to discuss your flat roof project…

If you need advice or information, talk our technical team. There’s a wealth of information on and you can browse the full range here the FAKRO team are on hand to chat from 8:30 – 5pm, or simply call us today on 0333 600 9090.


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