This is a case study of a multifamily residential building that has been environmentally assessed in terms of greenhouse gas (GHG) production using a simplified life cycle assessment (LCA) method. The results of total GHG emissions were compared to the emission limit value, which was set based on the climate objectives of the Paris Agreement and the scientific report The Emissions Gap Report. In response to the non-compliance with the emission limit, a number of emission-saving measures have been proposed and have been suitably designed into variants meeting the emission requirement.

This is a case study of a multifamily residential building that has been environmentally assessed in terms of greenhouse gas (GHG) production using a simplified life cycle assessment (LCA) method. The results of total GHG emissions were compared to the emission limit value, which was set based on the climate objectives of the Paris Agreement and the scientific report The Emissions Gap Report. In response to the non-compliance with the emission limit, a number of emission-saving measures have been proposed and have been suitably designed into variants meeting the emission requirement.

The risk assessment of water systems is implemented and carried out in more than ten European and a number of non-European countries. The main expected benefits of risk assessment are improving water quality, reducing the number and consequence of accidents, improving water resources protection, reducing acute diseases in the customer population, improving operational monitoring, better understanding of the entire supply system, reducing costs of remedies, operator and more. The disadvantage of carrying out a risk analysis for operators is, above all, a higher administrative burden and the costs of introducing a risk assessment.

Any roof likely to fall from a height shall be fitted with a handrail or restraint system as appropriate for the intended operation. Protection of persons against falls from a height must be addressed already during construction. Therefore, Act No. 309/2006 Coll. in its current wording, it specifies the work of the contractor and sets out its obligations. In addition to this Act updated in 2016, it is of course necessary to take into account other legislative requirements in the construction process. This implies many responsibilities of individual construction participants, which will be discussed in this paper.

In this article, we focus on fundamental element of primary protection – detection devices for registering the rise of hazardous concentrations of gases and vapors. We have chosen and described for each type of device and kind of detected gas basic tests that are necessary for ensuring their correct and reliable function.

The article briefly introduces basic technical terminology, errors and computational algorithms for estimating uncertainty of type A, type B, combined and extended uncertainty of test results and that the test management performs the tasks specified in the standard ČSN EN ISO / IEC 17025.

In recent years, we have seen a steady increase in the amount of data that is measured and recorded by measurement and control systems. Typically, these are hundreds to tens of thousands of readings per building. The question arises as to whether these data are properly utilized, extracted. The aim of the paper is to present the possibilities provided by current technologies and analytical software tools for evaluating data measurements related to the operation of heating systems.

The article describes all significant changes in the field of designing and implementing radon protective and remedial measures introduced by the revised version of ČSN 73 0601, which came into force on 1.10.2019. A new way of selecting measures according to the building type and new concept of designing according to the design values of input parameters are introduced. A new methodology for designing radon-proof insulations is described in detail. According to this methodology, only insulation with a radon resistance greater than the prescribed minimum radon resistance can be used for building protection.

The paper shows the difference in the economic parameters of the use of heat pumps in multi-dwelling buildings between the case of reconstruction and new building. The examples show the balances of two specific studies prepared in 2017 and 2018 for customers. While heat pumps in apartment building reconstructions can be advantageous only at relatively high energy prices above 700 CZK / GJ, in new buildings they can be an economical source of heat.

Increasing the thermal insulation properties of walls, roofs, floors and windows has a positive effect on reducing heat loss and energy need for heating. However, when assessing the energy need for cooling in buildings with conditioned indoor environment, this tendency to increase the thermal insulation capability may lead to an increase the energy need for cooling, when measures to reduce heat gains by transparent structures are not applied.

In the contribution, we are focused on the quality of the heat-moisture microclimate and the aspects that affect it. We chose one office room in the building of the Research Center of the University of Žilina (UNIZA), oriented to the west. The subject of the measurements were all physical components of the indoor environment, the effect of solar radiation through window constructions and floor temperatures using low-temperature radiant floor heating. The contribution describes measuring methods, results of measurements and related partial conclusions for cold climatic conditions of the year.

The paper deals with the comparison of real energy consumption with values calculated in the Energy Performance Certificate (PENB) for two buildings: New low-energy family house and older apartment building. In both cases, these are wooden buildings. Subsequently, basic differences between the card and the reality in terms of energy consumption are defined in the form of house use coefficients.

The article deals with BIM technology in co-operation with design of HVAC. The theme is divided into two related parts. The first part describes the complex issues related to BIM technology and its implementation in TZB practice. In the second part there is a practical way of comparing the calculation of heat losses according to CSN EN and using the BIM tool.

The standard is used to calculate water heaters and to evaluate the energy of hot water systems. It is one of the basic standards for designers of sanitary installations and heating.

The paper presents results of a study on potential reduction of CO₂ emissions of the Czech national building stock until 2075. The calculations were based on datasets provided by Chance for Buildings that modeled five different scenarios of energy savings in the Czech building stock that varied by the depth of the energy retrofitting measures and by the pace of their application. The results were compared to the carbon budget that was set in line with the objectives of the Paris agreement.

The study deals with the measurement of microclimatic (indoor climatic) parameters and questionnaire survey in open-space offices. It describes the building, the air conditioning system and the parameters that have been assessed in the space. The paper shows the problems associated with the assessment of the thermal-humidity microclimate according to the subjective feelings of the occupants. It is an introductory work to the analysis of objective and subjective assessment in the space with uneven thermal-humidity microclimate.