AESTHETIC AND FUNCTIONAL INTERACTION OF CURTAIN WITH ARCHITECTURAL ELEMENTS Başak Özkendirci * SUMMARY The windows, one of the basic elements of the architecture; facilitate the enlightenment and ventilation of indoor spaces, as well as the interaction with the outside world. For centuries, the curtains have served as an interface between the windows and the user through its functional gains. The curtains contributing to the thermal insulation also ensures to control the amount of daylight. They are also important elements in the privacy of living spaces. The fabrics hanging over the doors and windows since the earliest times in order to preserve the heat of the space have been used in various models. Curtains have been used in various models and produced in different patterns and qualities in harmony with the architectural elements and decorating elements that have taken on various aesthetic qualities in the historical process. The art and design movements that affected the architecture showed themselves through periodic changes in window forms and decorative elements. These changes were also effective in curtain patterns and designs. New materials becoming widespread in modern architecture are changing the traditional window concept. This change also reducing the need for a curtain, which is known as indispensable for interior decoration. The new generation glass meets functional features of curtains. With their superior features in heat, insulation takes the place of walls in modern buildings and removes the limits of the interior with panoramic view. At this point, the decorative features of the curtain coming to the forefront. In the study; And the reflection of the differences in the architectural on the curtains have been examined. Along with the current materials, it has been foreseen how the change of window structures in the architecture and how this change will affect the use of curtains. Keywords: Curtain, Window, History of Curtain, Interior Decoration, Curtains in future, Functions of Curtain, Aesthetic of Curtain * Assist. Prof. AltıŶďaş UŶiversity FaĐulty of FiŶe Arts aŶd DesigŶ DepartŵeŶt of FashioŶ aŶd Textile Design