The aim of the thesis is to design a hotel with almost zero energy consumption. The project is divided into three parts. The first part focuses on the architectural and construction design of the building at the building permit stage. It includes a construction and structural design, fire safety design, assessment from the point of view of building physics and a certificate of the building's energy performance.
The building is located in the Eastern Giant Mountains, in the city of Janské Lázně. The building is located on the top of Černá Hora, on the site where the original Sokolská bouda once stood. The building is designed as a five-story building with an L-shaped ground plan, covered with a gable roof with dormer windows on the south and north sides. The perimeter walls of the underground and first above-ground floors are designed from monolithic reinforced concrete and the interior walls from aerated concrete. The perimeter walls of the upper floors are designed as a solid wooden structure made of CLT panels, which are supplemented with a curtain wall on the inside and insulated with stone insulation on the outside with a ventilated facade with wooden cladding. The interior walls are also designed as a solid wooden structure made of CLT panels with curtain walls. The roof structure is designed as a modern purlin system, insulated between and under the rafters/clamps. According to the building's energy performance certificate, the building is classified as class A - Extremely energy-efficient.
The second part focuses on the concept of the building's technical equipment systems. The building's heating source is three ground-water heat pumps with vertical boreholes. These pumps are also designed for summer operation, when the rooms in the building are cooled. Ventilation in the building is designed as forced equal pressure with recuperation. Drinking water is provided by a well on the property, and sewage is discharged to a wastewater treatment plant. The purified water is then reused for flushing toilets in the building. Rainwater is diverted to a retention tank and reused for flushing toilets, the excess is diverted to a soakaway pond. All lighting in the building is provided by LED lights. The last is the design of a renewable energy source of photovoltaic panels, which are located on the roof with a south orientation.
The third part contains the processing of several critical details on the perimeter structures, which may contain thermal bridges. The details are processed from a construction and structural point of view and subsequently modeled in the 2D thermal engineering software DEKSOFT. The modeled details were subsequently compared with the standard values according to ČSN 730540-2 for the temperature factor of the inner surface and the linear heat transfer coefficient.