With their modern glazing, cero sliding windows dissolve the boundary between inside and the outdoors. A glass front that can be opened across a wide area, lets in lots of daylight and fresh air and increases the comfort of your home. But what about unwanted guests and extreme weather conditions? When building a new home or planning renovations, it's a good idea to think about your own safety and security. Our head of the Solarlux Academy, Stephan Hettlich, explains why cero sliding windows are completely safe and why the dream of transparent, well-lit living can now become a reality.