The residents wanted to create an additional space with plenty of natural light and an open connection to the garden and patio. The conservatory roof is built into the roof like a skylight and the sides are completely transparent with the ultra slim sliding windows cero. Characteristic of this type of sliding door are the large glass surfaces, up to 15 m² possible, and the view width of the profiles of only 34 mm. Well-insulated profiles combined with triple-glazing produces a tremendously energy-efficient space.