Keylite WFE04T White Painted Top Hung Hi-Therm Roof Window 550mm x 780mm
Keylite WFE04T White Painted Top Hung Hi-Therm Roof Window 550mm x 780mm
(Approx. 3-5 working days)
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The Keylite WFE04T is a white painted timber fire escape top hung roof window measuring 780mm by 980mm. It provides natural light, ventilation, and a designated means of escape from loft areas in an emergency. The unit features an outward opening design that opens to a 45° angle, fulfilling statutory building regulations for emergency exits while preventing the sash from entering internal room space.
The window operates manually via a handle positioned at the bottom of the frame for accessible opening. A multi-stop opening mechanism allows the sash to remain securely open at any angle up to 45°. For thermal efficiency, the unit includes a built-in expanding thermal collar activated by removing a release tape during installation, which expands to seal the gap between the window frame and the roof structure to reduce cold bridging. The double glazed thermal unit consists of a 4mm toughened outer pane, an argon gas-filled cavity, and a warm edge spacer bar to combat condensation.
Installation is completed from inside the building using pre-fitted brackets that lock into place on the roof battens. A sash hinge finger spring mechanism assists with smooth re-fitting of the window sash into the frame. The top-mounted ventilation flap incorporates a built-in insect filter, permitting continuous trickle ventilation while the window remains closed and locked. For external maintenance, the sash rotates 180° to permit safe cleaning of the outer glass pane from within the room. This model is compatible with roof pitches between 15° and 75° and requires a separate flashing kit for a watertight finish.
- Opens to a 45° angle to satisfy building regulations for a fire escape.
- Features an integrated expanding thermal collar to reduce cold bridging.
- Measures 780mm by 980mm for installation in standard roof openings.
- Built with a white painted pine finish to match modern interior ceilings.
- Double glazed thermal unit has a 4mm toughened outer pane for impact safety.
| Brand | Keylite |
|---|---|
| Width | 550 mm |
| Fire Escape Window | Yes |
| Glass Type | Hi-Therm Glazing |
| Glazed | No |
| Glazing Type | Clear Glazed |
| Height | 780 mm |
| Opening Type | Top Hunge / Fire Escape |
| Operation | Manual |
| Roof Type | Pitched Roof |
| Finish | White Painted |
| Roof Pitch | 15° to 75° |
| Cavity Type | Argon Gas Cavity |
| Inner Pane | 4mm Toughened |
| Model Name / No | WFE04T |
| Outer Pane | 4mm Toughened |
| Thermal Conductivity | 1.3 W/mK |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
The Keylite WFE04T is a white painted timber fire escape top hung roof window measuring 780mm by 980mm. It provides natural light, ventilation, and a designated means of escape from loft areas in an emergency. The unit features an outward opening design that opens to a 45° angle, fulfilling statutory building regulations for emergency exits while preventing the sash from entering internal room space.
The window operates manually via a handle positioned at the bottom of the frame for accessible opening. A multi-stop opening mechanism allows the sash to remain securely open at any angle up to 45°. For thermal efficiency, the unit includes a built-in expanding thermal collar activated by removing a release tape during installation, which expands to seal the gap between the window frame and the roof structure to reduce cold bridging. The double glazed thermal unit consists of a 4mm toughened outer pane, an argon gas-filled cavity, and a warm edge spacer bar to combat condensation.
Installation is completed from inside the building using pre-fitted brackets that lock into place on the roof battens. A sash hinge finger spring mechanism assists with smooth re-fitting of the window sash into the frame. The top-mounted ventilation flap incorporates a built-in insect filter, permitting continuous trickle ventilation while the window remains closed and locked. For external maintenance, the sash rotates 180° to permit safe cleaning of the outer glass pane from within the room. This model is compatible with roof pitches between 15° and 75° and requires a separate flashing kit for a watertight finish.
- Opens to a 45° angle to satisfy building regulations for a fire escape.
- Features an integrated expanding thermal collar to reduce cold bridging.
- Measures 780mm by 980mm for installation in standard roof openings.
- Built with a white painted pine finish to match modern interior ceilings.
- Double glazed thermal unit has a 4mm toughened outer pane for impact safety.
| Brand | Keylite |
|---|---|
| Width | 550 mm |
| Fire Escape Window | Yes |
| Glass Type | Hi-Therm Glazing |
| Glazed | No |
| Glazing Type | Clear Glazed |
| Height | 780 mm |
| Opening Type | Top Hunge / Fire Escape |
| Operation | Manual |
| Roof Type | Pitched Roof |
| Finish | White Painted |
| Roof Pitch | 15° to 75° |
| Cavity Type | Argon Gas Cavity |
| Inner Pane | 4mm Toughened |
| Model Name / No | WFE04T |
| Outer Pane | 4mm Toughened |
| Thermal Conductivity | 1.3 W/mK |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.