Abstract. The construction industry is considered to be a conservative industry, and, looking back into the history of the industry, modern digital tools have only started to play a role in a relatively recent period, but have already managed to significantly change the design, construction and management processes, their specifics, as well as the necessary competencies of the parties involved. This is mainly due to the third technological revolution, especially during the last two decades, when the extremely rapid development and availability of solutions of information and communication technologies has taken place. At present, in the private sector, companies operating in project supply chains (material manufacturers and suppliers, designers, builders) in the private sector can use the benefits of technology to increase their competitiveness and profitability. However, in Latvia, due to the public sector's order quantity and the fact that the demands on the project execution process are conservative in these orders, companies have so far been passive in introducing innovations. Companies in the supply chain of construction projects are not the only ones who can benefit from the use of new technologies. Among the winners are project contractors in both the private and public sectors. Therefore, it is necessary in construction study programs of universities to integrate BIM training by improving the content of the study program in accordance with the new demand. The research task is to find out the necessary knowledge, skills and competences of the graduates of university for working in so complicate managing process. It is also important to find out how to improve the study program according to the new and complex view from the first steps of construction to the operation of the building.

In recent years, the construction industry is experiencing a number of changes in the regulatory enactments to improve the quality and safety of construction work. As Latvia is one of the few countries, where you can experience all four seasons (spring, summer, autumn and winter), you can observe significant temperature fluctuations. This has an effect on both the construction and the various finishing materials. If calculations are made in the first case, taking into account the effect of the weather, then in the second case the weather impact is rarely observed. However, the weather effect on the finishing materials is enormous, so it is necessary to take measurements over longer periods of movement joints in walls and facades to observe and analyse the changes depending on the weather. It can be successfully implemented by installing crack-measuring plates and measuring weekly or more frequently at temperature fluctuations. The aim of the study is to perform deformation monitoring on the walls, to observe the state of the cracks and to make measurements, to determine the causes of the cracks, to make proposals to stabilize the situations. This will give an idea of the processes that are taking place under the influence of the weather and will lead to the assessment of new projects including structural design projects, renovation projects and European funded projects. In many projects this is not properly assessed, but the presence of deformation in the form of cracks can be observed in real life at homes with multiple sections or long wall spans. In time, this can lead to further damage to the facade. In order to save money and make the facades long lasting, these issues should be given more attention, so the authors focus on researching these issues.

Abstract. In times of climate change and globalisation, there is a demand for studies that address long-term environmental security, efficient use of energy and other recourses, as well as the preservation of the identity and uniqueness of particular places. Sustainable building involves complex solutions and practices that lead to more energy-efficient houses that consume less energy, water, and other natural resources. It encompasses constructing buildings in such a way as to minimise the material input per unit, and managing them to reduce the power-intensity as well as any negative impact on the health of people or the environment. The concept of sustainable building was developed in other countries, but it is becoming more popular also in Latvia [1; 2]. Sustainable city life is one of the seventeen Global Goals that make up the 2030 Agenda for Sustainable Development; accordingly, an integrated approach is crucial for achieving progress across the multiple goals [3]. In order to increase energy efficiency in buildings, reduce CO 2 emissions in the world and prevent global warming, it is very important to pay attention to the thermal properties of skylights. The impact of glazing on the thermal performance of a building is complicated. There are several aspects that need to be considered: the climatic conditions of the location, such as temperature, humidity, sunshine, and wind, as well as the orientation, form and layout of the building, the building materials, especially their mass and insulating properties, the size and location of windows and shading and the thermal properties of glazing systems. The impact of glazing is the result of the interaction of all of these aspects. The aim of this study is to provide some insight into how thermal properties, in particular vertical heat flow, are affected by the thickness of the air separation layer in horizontal and sloped skylights. Glass structures made from organic glass and aerogel layers, which are characterised by a low thermal conductivity coefficient, were studied. An experiment was carried out with different translucent materials (selective glass, organic glass, aerogel filling) and the distance between the glazing layers was varied. The aim was to measure the dependence of the thermal conductivity coefficient on the thickness of the air separation layer and the direction of the heat flow.