Tilt and turn window with top light in Rehau Geneo

GENEO is Rehau's other uPVC window system, with a core of glass-fibre reinforced plastic — Rehau calls it RAU-FIPRO — instead of the usual steel reinforcing sections in the chambers. That makes the profile just as stiff at 86 mm frame depth, and with Uf 0.86 W/m²K (version with thermal modules) it insulates better than any other uPVC profile we offer. The profile has 6 chambers, takes glass up to 53 mm and has been tested up to burglar resistance class RC3. The face of frame and sash together runs from 99 to 179 mm, and 110 to 214 mm on a French casement (figures given by Janwillem on 14 September 2026 from the Rehau data sheet).

Rehau's uPVC window with a glass-fibre core: 86 mm and Uf 0.86 W/m²K.

A standard tilt and turn window below, at a height you can operate, and a fixed pane above that fills the rest of a tall opening.

Some openings are taller than is comfortable for a tilt and turn window on its own — under a sloping roof, or in an elevation where the head of the window sits higher than you can still reach the handle comfortably. This window puts the tilt and turn sash at reachable height at the bottom and fills the rest of the height with a fixed pane above, so you get glass over the full height without a sash you can't operate.

The standard size is 1,200 × 1,800 mm, with the fixed top light taking a quarter of the height and the tilt and turn window the rest. If you do need ventilation at that height, the tilt and turn window with tilt-in top light — with a bottom-hung sash instead of the fixed top light — is the form that provides for it.

All about the Rehau Geneo profile All about the tilt and turn window with top light layout