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.

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.