Abstract

The significant growth of the building stock in the 20th century allied to the low rate of building retrofitting over the last years results in the current low conservation level of the Portuguese building stock. The building natural aging, associated with the lack of planned maintenance actions and the climate changes consequences contributed to accelerating the degradation of building materials in the existing buildings, leading to a poor conservation of Portuguese public building stock. So, to extend the service life of the materials, the application of appropriate maintenance actions is imperative. This work aims to assess the building performance and to prioritize the maintenance actions employing Key Performance Indicators using Building Information Modelling (BIM) as a supporting tool for building condition assessment and maintenance management. To achieve these goals the following methodology was applied to a case study: 1)Building Information Collection; 2) Building Life Cycle Cost Estimation, and 3) Automated calculation of Building Performance Indicator supported by BIM, using Revit software and Dynamo programming. The application of this maintenance management automated strategy shows the importance of BIM in Facility Management; permits the model‘s permanent update of information decreasing the probability of information loss and the consequent investment in data collection, and has high potential to prioritise the building maintenance actions, extending the materials service life and building durability.