BIM within current building facilities and infrastructure

One of the main reasons for introducing BIM into existing buildings is cost savings in the construction management and maintenance phase (operating phase). Operational phases have the biggest impact on the total life cycle costs. The introduction of BIM and the creation of a building information model, albeit at a higher price, will be counterbalanced several times by a more efficient way of managing the building during its life cycle, the possibility of creating a healthier indoor environment for building users and better access to necessary information, for example in the case of changes to completed buildings. The BIM model is a digital equivalent of a real construction - real digital twin. It contains geometric data in the form of a 3D model and non-geometry data, including construction management and support documents. The BIM model allows access to building usage information. The information obtained is more accurate. It keeps building element information up to date, enabling more informed decisions. It supports comparison of different solutions and their energy needs. Renovation can be done more efficiently. Construction information is up-to-date, so we can use the time needed to process different solutions instead of finding the necessary information about the construction.