Piddubna N. Compositional principles of using mosaics in the architecture of Lviv of the late 19th - early 21st centuries

The usage of mosaic compositions for decorating facade and interior designs in the architecture of Lviv of the late 19th – early 21st centuries has been analyzed in the present dissertation work and the unique methodology for their research has been elaborated. Previous studies on the topic of using mosaic compositions in architecture have been systematized and summarized. The analysis has revealed that the relevant studies are fragmentary and only separate aspects are fully covered. The investigation, which is based on the conducted field observations, the inventory of mosaics in architecture, and the complex of research interviews, enabled the possibility of identifying and describing a considerable amount of works in the architecture of Lviv. As based on the analysis and systematization of the collected empirical data, mosaic compositions have been classified according to the following criteria: chronological and stylistic features, functional typology, compositional and space-planning decisions in architecture. The set of external and internal factors influencing the use of mosaics has been determined; the the areas of using mosaics and its abundance in the architecture of Lviv have been analyzed; the basic compositional principles of using mosaics for decorating facades and interiors of architecture have been outlined. The evaluation of the present state of preservation of mosaic compositions and their value for the architecture of Lviv has been completed. The main stages and causes of destruction have been determined and the recommendations for preserving and restoring mosaic compositions in the architecture have been suggested.