The objective of this thesis is to present methods for assessing the fire risk of buildings. Initially, I defined the basic terms and expressions used throughout the work, as it often happens in practice that definitions are unclear, leading to the misuse and confusion of terms. The concepts of fire risk, system risk management and assessment process, fire risk, fire hazard and others that often accompany the discussed topic are presented. I also briefly touched upon the historical context, development of methods, and listed some methods or concepts currently in practice. Subsequently, I delved into the definition of two methods for fire risk assessment. The first method described is the index method for determining fire risk. In relation to this the background of the method's operation is presented, which includes the core of indexing, attribute identification, attribute weights, an example of hierarchical weight assignment, parameter dependency, index calculation, method application with defined fire strategies, factors, and a simplified calculation example. The second method described is the ALARP approach for fire safety planning through the quality of life index. The perspective of social and private valuation of costs arising from investments in safety measures is presented. The illustrated examples show when investment in safety measures to achieve a higher class of sprinkler system is justified from the point of view of social evaluation.
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