Casement
Alu-Steel · COR 80 · COR 70

The elegance of steel, perfected in aluminium

Casement

Our solutions combine steel's timeless aesthetics with aluminium's exceptional performance. Ultra-thin profiles maximise light and panoramic views, creating architecture where every opening becomes a picture.

66 mm
Aluminium sightline
0,66
Uw W/m²K (Passivhaus)
46 dB
Acoustic insulation
Invisible handle
01

Invisible handle

The first invisible handle on the market. An exclusive handle integrated into the sash, imperceptible from the front. The aesthetic is totally clean — simulating a fixed element, while actually being an opening and tilt-and-turn system.

Invisible hinges
02

Invisible hinges

Optional invisible hinges that consolidate the aesthetic purity of the whole. Every technical element withdraws from view, leaving only the geometric clarity of the design.

Hidden sash
03

Hidden sash

A clean design where the sash hides behind the frame, maximising the glass area and light. With an aluminium sightline of just 66 mm, this is not a window — it's a picture.

Hidden drainage
04

Hidden drainage

Minimising the aesthetic impact of window components. Compatible with all 70 and 80 mm depth systems. A gasket integrated into the lower frame replaces front-mounted drainage covers.

Product lines

Alu-Steel

Combining aluminium's excellent performance with steel's timeless aesthetics. With an aluminium sightline of just 72.5 mm, ideal for renovations and new builds.

Thermal transmissionUw ≥ 0.83 W/m²K
Air permeabilityClass A*4
Water tightnessClass E*E1200
Wind resistanceClass V*C5
Max. glazing54 mm
Max. sash weight160 kg

COR 80 Hidden Sash

85% glass area, 45 mm thermal break and triple glazing. Exceptional thermal and acoustic performance.

Thermal transmissionUw ≥ 0.8 W/m²K
Acoustic insulationRw up to 46 dB
Water tightnessClass E*E1650
Wind resistanceClass V*C5
Aluminium sightline66 mm
Max. sash weight160 kg

COR 80 Passivhaus

Certified for passive or low-energy houses. Exceptional thermal insulation through foam integrated into the frame and sash.

Thermal transmissionUw ≥ 0.66 W/m²K
Acoustic insulationRw up to 46 dB
Water tightnessClass E*E1950
Wind resistanceClass V*C5
Max. glazing65 mm
Max. sash weight160 kg

COR 70 Hidden Sash

Not a window, but a picture. 66 mm aluminium sightline, invisible handle, invisible hinges and hidden drainage.

Thermal transmissionUw ≥ 1.0 W/m²K
Acoustic insulationRw up to 46 dB
Water tightnessClass E*E1650
Wind resistanceClass V*C5
Depth70 mm
Max. sash weight160 kg

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