The Keylite White Painted Top Hung Hi-Therm Roof Window (1140 x 1180mm) combines a unique set of features for an energy efficient window that is quick and easy to install. As standard, an integrated thermal collar expands to provide excellent insulation. The flick-fit brackets come pre-fitted for installation in under two minutes and a sash finger spring allows the sash to re-fit smoothly. Trickle ventilation is controlled through the top handle, even when the window is securely closed. It has a recessed fit as standard, suits roof pitches from 15° to 75° and is backed by a 10-year guarantee. The fully glazed centre pane U-value is 1.1 W/m².K, with warm edge glazing included as standard.

• Integrated, expanding thermal collar as standard.
• Under 2-minute installation with pre-fitted Flick-fit Brackets.
• Sash Finger Spring helps the sash re-fit smoothly.
• Controlled trickle ventilation through the top handle, even with the window securely closed.
• Recessed fit as standard.
• Works on roof pitches between 15° and 75°.
• Covered by a 10-year guarantee from the manufacturer.
• Centre pane achieves a U-value of 1.1 W/m².K when fully glazed.
• Standard warm edge glazing.