The article deals with issues of applying modern innovative three-dimensional techniques in production and restoration of facade decor elements. Methodology for producing an exact physical copy of a part under restoration is set forth as exemplified by the architectural rosette. It details a methodology of how to conduct virtual digital restoration of a rosette using one of the best software solutions for digital molding, Zbrush, which is a superb tool to create high-definition three-dimensional objects. Two methods of digital restoration are treated: copying and sculpting. The copying method produces the geometric shape of an article consisting of items with identical dimensions. Sculpting is performed using digital molding, i.e. working with digital clay – a more intuitive modeling method compared to traditional techniques. Possible methods of production of the restored physical copy of a damaged rosette, their merits, and demerits are described. The study provides a forecast for development of architectural monument restoration with the use of three-dimensional techniques.
The article notes that the main heat losses during major repairs of buildings of historical development are associated with low thermal resistance of external wall fences, due to the lack of thermal insulation of balcony doors. The purpose of the study: to show a significant reduction in costs in the capital reconstruction of former apartment buildings, of which there are more than one and a half thousand in St. Petersburg, due to the use of innovative thermal insulation materials. Methods: thermal imaging, laboratory research. Results: as a result of studying the humidity regime, the experimental section of the wall, determining the dew point, resistance to vapor permeability, air permeability, and construction properties of historical bricks, the authors suggest that buildings of historical development follow the rule that provides for insulation of the external walls of these buildings from the inside.
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