Top Hung Roof Windows
Fire Escape Roof Windows
Keylite's Top Hung Roof Windows* are ideal for safety as they open to 45°, complying with statutory regulations, offering an easy means of escape in the event of an emergency.
Our Top Hung Roof windows as perfect in low pitch roofs as the window opens outward, maximising the daylight that enters the room without the sash encroaching on your valuable internal space.
Maximise ventilation and enhance thermal performance with our Top Hung Roof Windows - get in touch with the Keylite technical team for help on the specification!
*Please note, as the exception, Keylite Sizes 02 (550 x 980) and 03B (660 x 980) open to 30°. These cannot be classified as a means of escape.
Top Hung Roof Windows Features
*Keylite Size 02 (550 x 980) and Size 03B (660 x 980) cannot be classified as a means of escape.
Easy to Use - the multi-stop opening feature allows the user to simply push the top hung roof window to any position between 0 - 45° and remain open for maximum flexibility.
Effective Ventilation - this is provided by the vent flap at the top of our top hung roof windows which regulates the air flow, even when the window is closed.
Thermal Performance - Only Keylite windows have an Expanding Thermal Collar, Warm Edge Glazing and a Streamlined Fit as standard, leading to enhanced thermal performance.
*Important: Check with your local Building Control Dept. with regards to the position of the window.
Finish Options
Choose the perfect finish for your Keylite Roof Window. Our Roof Windows come in three different finishes: Polar White PVC, White Painted Pine or Clear Lacquered Pine.
Polar White
PVC 
- 20 Year Guarantee – Centre Pivot only
- Premium grade PVC materials
- Moisture Resistant
- Maintenance Free
- Energy Efficient
White Painted
Pine 
- 10 Year Guarantee
- Timber with a clean coat of white paint
- Ideal for kitchens and bathrooms
- Low Maintenance
Pine Clear
Lacquered 
- 10 Year Guarantee
- Timber with clear satin lacquer applied in multiple coats
- Ideal for most interiors
- Practical and Hard-wearing
Expanding Thermal Collar
Just pull the tapes and the foam expands to fill the gap between the window and the roof timbers
All Weather Ventilation
Keylite's Top Hung 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.
Streamlined
All our roof windows are recessed for an in roof look.
All our roof windows are recessed for an in roof look.
Roof Window Sizes
Roof Window Sizes
Select either Polar White PVC, white or pine finish to reveal roof window sizes
Polar White PVC Finish
| Window Size | 550x980 | 550x1180 |
|---|---|---|
| Thermal | PTH-02-T | PFE-01C-T |
| Hi-therm | PTH-02-HT | PFE-01C-HT |
| Triple Glazed | PTH-02-KTG | PFE-01C-KTG |
| Integral Blind | PTH-02-I | PFE-01C-I |
| Window Size | 660x1180 | 780x980 |
| Thermal | PFE-03-T | PFE-04-T |
| Hi-Therm | PFE-03-HT | PFE-04-HT |
| Triple Glazed | PFE-03-KTG | PFE-04-KTG |
| Integral Blind | PFE-03-I | PFE-04-I |
| Window Size | 780x1180 | 780x1400 |
| Thermal | PFE-05-T | PFE-06-T |
| Hi-Therm | PFE-05-HT | PFE-06-HT |
| Triple Glazed | PFE-05-KTG | PFE-06-KTG |
| Integral Blind | PFE-05-I | PFE-06-I |
| Window Size | 940x1400 | 940x1600 |
| Thermal | PFE-07F-T | |
| Hi-Therm | PFE-07F-HT | |
| Triple Glazed | PFE-07F-KTG | |
| Integral Blind | PFE-07F-I | |
| Window Size | 1140x1180 | 1340x980 |
| Thermal | PFE-08-T | PFE-09-T |
| Hi-Therm | PFE-08-HT | PFE-09-HT |
| Triple Glazed | PFE-08-KTG | |
| Integral Blind | PFE-08-I | PFE-09-I |
White Finish
| Window Size | 550x980 | 550x1180 |
|---|---|---|
| Thermal | WTH-02-T | WFE-01C-T |
| Hi-therm | WTH-02-HT | WFE-01C-HT |
| Triple Glazed | WTH-02-KTG | WFE-01C-KTG |
| Integral Blind | WTH-02-I | WFE-01C-I |
| Window Size | 660x1180 | 780x980 |
| Thermal | WFE-03-T | WFE-04-T |
| Hi-Therm | WFE-03-HT | WFE-04-HT |
| Triple Glazed | WFE-03-KTG | WFE-04-KTG |
| Integral Blind | WFE-03-I | WFE-04-I |
| Window Size | 780x1180 | 780x1400 |
| Thermal | WFE-05-T | WFE-06-T |
| Hi-Therm | WFE-05-HT | WFE-06-HT |
| Triple Glazed | WFE-05-KTG | WFE-06-KTG |
| Integral Blind | WFE-05-I | WFE-06-I |
| Window Size | 940x1400 | 940x1600 |
| Thermal | WFE-07F-T | WFE-07-T |
| Hi-Therm | WFE-07F-HT | WFE-07-HT |
| Triple Glazed | WFE-07F-KTG | WFE-07-KTG |
| Integral Blind | WFE-07F-I | WFE-07-I |
| Window Size | 1140x1180 | 1340x980 |
| Thermal | WFE-08-T | WFE-09-T |
| Hi-Therm | WFE-08-HT | WFE-09-HT |
| Triple Glazed | WFE-08-KTG | |
| Integral Blind | WFE-08-I | WFE-09-I |
| Window Size | 1340x1400 | |
| Thermal | WFE-10-T |
Pine Finish
| Window Size | 550x980 | 550x1180 |
|---|---|---|
| Thermal | TTH-02-T | TFE-01C-T |
| Hi-therm | TTH-02-HT | TFE-01C-HT |
| Triple Glazed | TTH-02-KTG | TFE-01C-KTG |
| Integral Blind | TTH-02-I | TFE-01C-I |
| Window Size | 660x1180 | 780x980 |
| Thermal | TFE-03-T | TFE-04-T |
| Hi-Therm | TFE-03-HT | TFE-04-HT |
| Triple Glazed | TFE-03-KTG | TFE-04-KTG |
| Integral Blind | TFE-03-I | TFE-04-I |
| Window Size | 780x1180 | 780x1400 |
| Thermal | TFE-05-T | TFE-06-T |
| Hi-Therm | TFE-05-HT | TFE-06-HT |
| Triple Glazed | TFE-05-KTG | TFE-06-KTG |
| Integral Blind | TFE-05-I | TFE-06-I |
| Window Size | 940x1400 | 940x1600 |
| Thermal | TFE-07F-T | TFE-07-T |
| Hi-Therm | TFE-07F-HT | TFE-07-HT |
| Triple Glazed | TFE-07F-KTG | TFE-07-KTG |
| Integral Blind | TFE-07F-I | TFE-07-I |
| Window Size | 1140x1180 | 1340x980 |
| Thermal | TFE-08-T | TFE-09-T |
| Hi-Therm | TFE-08-HT | TFE-09-HT |
| Triple Glazed | TFE-08-KTG | |
| Integral Blind | TFE-08-I | TFE-09-I |
| Window Size | 1340x1400 | |
| Thermal | TFE-10-T |
Roof Window Comparison Chart
| Height (mm) | Width (mm) | ||||||
|---|---|---|---|---|---|---|---|
| 550 | 660 | 780 | 940 | 1140 | 1340 | ||
Keylite |
780 | 01 | 03A | 04A | 07A | 08A | 09A |
Velux |
CK02 | N/A | N/A | N/A | N/A | N/A | |
Fakro |
01 | 22 | 23 | 24 | 25 | 26 | |
Keylite |
980 | 02 | 03B | 04 | 07B | 08B | 09 |
Velux |
CK04 | FK04 | MK04 | PK04 | N/A | UK04 | |
Fakro |
02 | 03 | 05 | 15 | N/A | 12 | |
Keylite |
1180 | 01C | 03 | 05 | 07C | 08 | 09C |
Velux |
CK06 | FK06 | MK06 | PK06 | SK06 | N/A | |
Fakro |
16 | 04 | 06 | 08 | 10 | N/A | |
Keylite |
1400 | 01F | 03F | 06 | 07F | 08F | 10 |
Velux |
N/A | FK08 | MK08 | PK08 | SK08 | UK08 | |
Fakro |
N/A | N/A | 07 | 09 | 11 | N/A | |
Keylite |
1600 | 01G | 03G | 04G | 07G | 08G | 09G |
Velux |
N/A | N/A | MK10 | PK10 | SK10 | UK10 | |
Fakro |
N/A | N/A | 13 | 80 | N/A | N/A | |
Optional Upgrades for your Top Hung Roof Windows
Polar White PVC
On trend modern styling, making it the only window you'll ever need.
White Painted Finish
A fresh and contemporary look. The wipe clean moisture resistant finish is ideal for use in kitchens, bathrooms and other humid areas.
Integral Blind
The clever built in shading solution with the blind enclosed between the glass and therefore is protected from moisture, dust or damage.
Electric Operation
Electric Operation Fingertip control for out of reach locations.
Combination
Create the perfect solution for your project - Combi, Bi-Lite or Grid.
Conservation
Designed to complement both renovation & new build projects in a traditional style. It is ideal for use in a period style property.
Smoke Vent
Designed to open automatically in the event of a fire.
Keylite Blinds
Choose easy fitting Keylite Blinds to control light and privacy in your home.
Install Components
Felt and Vapour Collars available.
Glazing Options
Keylite Roof Windows can be supplied with a wide range of glazing variants.
Learn More
Service & Support
Our technical experts are on hand to advise and assist you at the design and specification stage.
Patented Innovation
Our patents mean that other conventional roof windows do not share many of our extraordinary features.
Up to 20 Year Guarantee*
We are confident that our products will give trouble free performance throughout this period and beyond. *See Guarantee terms
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Available in
Great Britain, Northern Ireland & Republic of Ireland