Patrik Šťastný

• Doctor of Engineering
• Researcher at Slovak University of Technology in Bratislava

Condition surveys are an important part of the whole scientific research of torso buildings, which we understand to be buildings with usually missing roofs, wooden ceilings, doors, windows, and other envelope constructions along with damaged internal and external infrastructure and surfaces. The aim of the processed condition surveys is to gather b...

This article focuses on the energy performance of buildings with an emphasis on the consequences of non-compliance with technological practices during the building process. We analyse the impact of construction deficiencies on the consumption of heat for heating, focusing on specific case studies of selected building constructions in the Slovak Rep...

When constructing a ceiling slab, it is essential that the load is effectively transferred to the lower floors. However, challenges arise when the lower ceiling slabs do not meet the specified design strengths, potentially indicating inadequate load bearing capacity. This article explores a novel approach to solving this problem by using supports t...

The paper deals with the issue of humidity and the unhealthy environment of old buildings. Humidity is a very widespread problem not only in historical buildings, but also in newer buildings. This problem can be observed in various parts of the world and thus it can be said that it is a global problem. Humidity in these buildings causes an unhealth...

Publication is focused on introduction of construction-technical surveys of torsal building with the aim to identify the most endangered parts of them. These surveys are also important basis for preparing of structural interventions. Their outcomes should be focused on ensuring of safety of the visitors of a ruin, as also on preserving of valuable...

This article presents the results of an experiment that involved applying additional impermeable layers on an historical building in the area of Káčerov Majer. The building showed a high level of waterlogging, which was detected by an initial inspection and subsequent moisture measurements that involved taking a set of measurements and recording th...

Dnes sa v praxi používa viacero metód merania zameraných na identifikáciu úrovne vlhkosti stavebných konštrukcií. Namerané dáta je možné prepojiť s informačným modelom stavby, výsledkom čoho bude usporiadaná databáza, čo umožní nielen lepšie a komplexnejšie vyhodnocovanie, ale umožní automatizáciu vyhodnocovania s využitím umelej inteligencie. Prob...

This article is closely related to the oldest article titled Contribution to Active Thermal Protection Research—Part 1 Analysis of Energy Functions by Parametric Study. It is a continuation of research that focuses on verifying the energy potential and functions of so-called active thermal protection (ATP). As mentioned in the first part, the amoun...

The thermal energy consumption for heating objects is one of the main parameters deciding their technical and structural solution. Reducing energy consumption is realized in various ways. The most used method is passive thermal protection, that is, increasing the thermal insulation parameters of the envelope constructions and optimizing the operati...

This article focuses on the investigation of the dynamic thermal barrier (TB) and dynamic thermal resistance (DTR) of the building envelope. The aim is to analyze the DTR as a function of the temperature change of the heat transfer medium supplied to the dynamic TB layer and to determine the energy potential of several materially different fragment...

Building structures with integrated energy-active elements (BSIEAE) present a progressive alternative for building construction with multifunctional energy functions. The aim was to determine the energy potential of a building envelope with integrated energy-active elements in the function of direct-heating, semi-accumulation and accumulation of la...

The humidity of historical constructions can be considered as a global problem causing either partial or complete destruction of the affected buildings. Therefore, it is necessary to solve this problem by certain interventions to reduce or completely remove humidity from these structures in order to preserve the historical and cultural heritage of...

Slovakia is a rugged country, a significant part of which consists of mountain areas. Construction activities in these localities should consider specific natural conditions, while taking into account economic issues. In these cases, the efficient way of construction is the use of aerial work, so the execution of constructions using helicopters. Ho...

This article describes the basic principles and results of an expert system for construction planning and management. In the field of expert opinions, the system greatly helps to determine the limit of unreasonably low construction prices on the basis of a rapid cost analysis. Additionally, it can determine the technologically shortest possible con...

The optimization of mechanized construction processes has a very important impact on economic and environmental sustainability. Our analyses evaluate key factors that affect the quality, environment, and economics of mechanized earth processes. This paper also presents approaches in this area in Slovakia and abroad, and existing mathematical models...

Nearby all historic building built in Central Europe before the half of the 20th century have to face problems with unwanted moistening of their constructions. A significant part of them stands under legal protection as architectural monuments. There are several technologies which can be used to deal with this problem. Some of them are more invasiv...

The paper presents partial outputs from an experiment that demonstrated the impact of applying an additional insulation on an existing contact insulation system with a green-algae surface. The aim was mainly to detect the development of microorganisms in the gap between the original and the new insulation. The existing ETICS on the polystyrene-base...

Restoration of landmarks hit by rising moisture is in conjunction with the concept of sustainability by a very current theme. This problem needs to be addressed from a global point of view. The article discusses individual remediation technologies (invasive and non-invasive), which were applied and long-term investigated on several historical build...

Negative effects of humidity in historic buildings can be considered as phenomenon that is perceptible on most of these constructions. Along with the problem of humidity, the salinity of wet walls can also be observed visually, that also in a large extent helps to destroy and gradually degrade particular structural elements and subsequently entire...

The article focuses on the description of an innovative solution and application of active thermal protection of buildings using thermal insulation panels with active regulation of heat transfer in the form of a contact insulation system. The thermal insulation panels are part of a prefabricated lightweight outer shell, which together with the low-...

The moisture affects all materials on the earth surface, but we have developed a specific sensitivity toward moistening of architectural heritage buildings. Water in construction materials and on their surface influences partially their technical state like their stability, but usually not that much as people can think. Unwanted moisture is usually...

Moisture and its negative effects on monuments are a widespread problem that needs to be tackled especially to save historical buildings. The moistening of objects, whether historical or new, is not only part of our climate zone, but can be attributed to a global character, as evidenced by a number of publications and research on the issue of water...

The state of monuments on the territory of the Slovak Republic has significantly deterio-rated with the increasing age of the buildings and long-term neglected maintenance caused by various factors. This often leads to comple-te destruction of individual building elements and constructions, and many times these historic buildings may endanger not o...

The evaluation of technologies for fighting moisture in masonry of architectural heritage buildings has showed the way of their introduction into practice. The evaluation is based on the results from the realization of the first three levels of the operation by the Method of continuous steps (as per the ISCARS recommendations in 1999 and Charter of...

The research of the undercutting technology is aimed on demonstrating the need to implement a technology of remediation of historic contructions, because this technology is one of the most effective methods of implementiation of the additional anti-moisture insulation of the historical constructions. The problem of this technology is an attitude of...

The purpose of this paper is to evaluate the ventilation effects versus the undercutting and injection technologies in fighting the unwanted moisture in a historic baroque masonry. The evaluation is based on the results from the realization of the first three levels of the operation by the Method of continuous steps (as per the ISCARS recommendatio...