cero IV

German Design Award Winner 2024

The Solarlux cero IV sliding door from Spacekube has been designed with one objective in mind; to flood your home with as much natural light as possible. However, to achieve this the profiles must be slimmer than ever yet strong enough to meet safety standards while delivering thermal efficiency. Solarlux have achieved this which is why the cero IV is the German Design Award Winner 2024. The cero IV is not so much a sliding door...it's a sliding window to your world.
why cero IV

Imperceptible sightlines

Huge expanses of glass, an almost invisible frame and the slimmest sightlines on the market create greater-than-ever transparency. With a Uw value as low as 0.8W/m2K, the Cero IV is suitable for projects using passive house design.
cero IV features

Key Features

Glass panels up to 12m2 and weighing up to 1,000kg

15mm sightlines at top and bottom

Ultra-thin window profiles at 2mm

Passive house Uw value - under 0.8/m2K

Flush frame for maximum glass surface

Concealed locking mechanism with double or triple glazed

Zero-wear, low-noise running tracks and rollers, even with panels up to 1,000kg


Contact Spacekube, to find out more about Scotland's exclusive collection of Solarlux cero sliding doors.