Computer-based tool « PETRA » for decision-making in networks about the maintenance and renovation of a mixed building estate

Colombo, Luca and Rudel, Roman and Branca, Giovanni and Tamborini, Davide and Strepparava, Davide and Ortelli, Luca and Thalmann, Philippe and Flourentzou, Flourentzos and Genre, Jean-Louis and Kaehr, Paolo (2012) Computer-based tool « PETRA » for decision-making in networks about the maintenance and renovation of a mixed building estate. In: 17. Status-Seminar UNSPECIFIED.

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The PETRA project aims at developing an computer-based tool for decisions-making in networks for building estate management that encompasses both a rapid assessment and the planning of renovations according to different indicators. It is addressed to all people or institutions managing a mixed building estate and particularly, to technical services for project management, architects and engineers, owner‟s associations and expert offices. In order to establish a correct maintenance management programme, these « clients » are in need of a method for analyzing buildings that allows to rapidly and simply «scan » the building estate and estimate the typology and the investment costs of rehabilitation interventions. The aim of the project is to bring innovation by offering extra speed and universality for better answering the real estate market‟s new requirements in the area of maintenance and renovation. Indeed, the market needs fast and precise methods that help the expert to reconcile the needs of heritage protection and new energy requirements. Within the next 10 to 30 years, the biggest building estate conversion ever will take place in Switzerland. This implies the refurbishment of buildings from the years 1950-1970 that are now at the end of their lifetime and that have a 2-3 energy consumption reduction factor. Given this reality, an owner cannot only trust the manager‟s intuition ; this intuition must be reinforced by appropriate analytical tools such as the new method that will be developed with this project. PETRA develops a new evaluation methodology that allows to analyze the buildings‟ conservation state and to calculate the renovation costs of each building in a simple and quick way. In order to carry this out, a process of data aggregation and element grouping, based on existing methods previously developed by the work group (EPIQR+1, INVESTIMMO2), will be set up.

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