The Avalis thermally insulated SDL roof system has established a new market segment all its own. It meets high aesthetic demands and follows the latest architectural trends with its harmonious proportions and purist cubage. Its coordinated system components and a high degree of pre-fabrication make for short installation times. Maximum thermal insulation, reliable ventilation and shading are included as standard in the system design. Solarlux bi-folding doors and the extra-large cero sliding windows offer a variety of options for a transparent vertical system. Thus, a modern and sophisticated room extension can be achieved.