MODEL FOR ASSESSING THE UTILITY PROPERTIES OF A BUILDING

This article considers the changes of the utility properties of the building, which arise from the moment of putting it to use to the so-called out of use time. Two independent processes that occur during the operation of buildings were distinguished: the deterioration of the utility properties of the object and the growth of users requirements. The authors present a mathematical model to evaluate the utility properties of the building. The knowledge of utility properties is necessary for the valuation of the real estate, as well as for planning of the size and scope of repairs and refurbishment of buildings. As is known, the model is a simplified implementation of the phenomenon (process) that captures the basic features associated with the analyzed problem. The authors identified four groups of factors determining the utility properties of the building: technical factor (showing the construction safety, fire safety, utility safety); functional factor (including the ability to change the function of a building, access to the building, health and comfort of users, in particular thermal and acoustic comfort, Visual Comfort, etc.); object‘s aesthetic factor; economic factor, including the entire life cycle of the object. The usage of a mathematical model gives a lot of advantages: explores the relationship between various aspects of the problem; allows to compare the many possible solutions and helps to choose the best one; allows to forecast future events (e.g. reliability, durability, etc.).