Select Page

Flat Roof System

Many properties have extensions with flat, or near flat roofs. Keylite has developed a Flat Roof System (FRS) specifically for this application, which allows daylight into the area beneath.

The Keylite FRS provides all the benefits of natural ventilation and daylight. All Roof Windows within the entire Keylite range can be integrated within an FRS.

The standard Keylite Flat Roof System consists of the following:

The roof and vertical windows combine seamlessly at eaves level.

For “tilt and turn” prices and options, contact the Keylite Sales Team.

The standard vertical windows are available as tilt only.

Keylite VBL’s are designed to complement the Keylite Roof Windows overhead, and are suited to any property.

Expanding Vitrage thermique Collar

Just pull the tapes and the foam expands to fill the gap between the window and the roof timbers

View Futuretherm

All Weather Ventilation

Keylite Roof Windows all provide trickle ventilation, even with the window fully closed and securely locked.

Ventilation Filter

The built-in insect filter ensures only clean, fresh air passes into the room.

Easy Installation

Simple, Easy.. Fast. From box to roof in 2 minutes. Keylite innovations combine for faster, easier installation.

Installation Video



All our roof windows are recessed for an in roof look.


All our roof windows are recessed for an in roof look.

Dimensions des fenêtres de toit

Dimension des fenêtres 550x780 550x980 660x1180 780x980 780x1180 780x1400 940x1600 1140x1180 1340x980 1340x1400
Structural Opening Size 530x1000 530x1200 640x1400 760x1200 760x1400 760x1620 920x1820 1120x1400 1320x1200 1320x1620
Finition Pin
Keylite Therm - Product Code FRS-CP-01-T FRS-CP-02-T FRS-CP-03-T FRS-CP-04-T FRS-CP-05-T FRS-CP-06-T FRS-CP-07-T FRS-CP-08-T FRS-CP-09-T FRS-CP-10-T
Finition Blanc
Keylite Therm - Product Code FRS-WF-CP-01-T FRS-WF-CP-02-T FRS-WF-CP-03-T FRS-WF-CP-04-T FRS-WF-CP-05-T FRS-WF-CP-06-T FRS-WF-CP-07-T FRS-WF-CP-08-T FRS-WF-CP-09-T FRS-WF-CP-10-T

Dimensions des fenêtres de toit

Select white or pine finish to reveal roof window sizes

Finition Pin
Dimension des fenêtres 550×780 550×980 550×1180 660×1180 780×980 780×1180 780×1400 940×1400 940×1600 1140×1180 1340×980 1340×1400
Vitrage thermique CP-01-T CP-02-T CP-01C-T CP-03-T CP-04-T CP-05-T CP-06-T CP-07F-T CP-07-T CP-08-T CP-09-T CP-10-T
Vitrage Hi-Therm CP-01-HT CP-02-HT CP-01C-HT CP-03-HT CP-04-HT CP-05-HT CP-06-HT CP-07F-HT CP-07-HT CP-08-HT CP-09-HT CP-10-HT
Triple Vitrage CP-01-KTG CP-02-KTG CP-01C-KTG CP-03-KTG CP-04-KTG CP-05-KTG CP-06-KTG CP-07F-KTG CP-07-KTG CP-08-KTG CP-09-KTG CP-10-KTG
Keylite sécurisée CP-01-KS CP-02-KS CP-01C-KS CP-03-KS CP-04-KS CP-05-KS CP-06-KS CP-07-FKS CP-07-KS CP-08-KS CP-09-KS CP-10-KS

Optional Upgrades

Finition Blanc

A fresh and contemporary look. The wipe clean moisture resistant finish is ideal for use in kitchens, bathrooms and other humid areas.

Electric Operation

Electric Operation Fingertip control for out of reach locations.

Integral Blind

The clever built in shading solution with the blind enclosed between the glass and therefore is protected from moisture, dust or damage.

Smoke Vent

Designed to open automatically in the event of a fire.

Pourquoi Keylite?

Visitez cette page

Service & Support

Service & Support

Our technical experts are on hand to advise and assist you at the design and specification stage.

Service & Support

Patented Innovation

Our patents mean that other conventional roof windows do not share many of our extraordinary features.

Service & Support

10 Year Guarantee

We are confident that our products will give trouble free performance throughout this period and beyond.

Service & Support

Buy Online

Only available in
England, Scotland & Wales