A Tool for Multidisciplinary Development of Energy Efficiency Solutions for Historic Buildings: the Raumbuch Concept Extended to Energy Aspects

1 EURAC research, Italy, [email protected] 2 Technische Universität Dresden, Germany, [email protected] 3 EURAC research, Italy, [email protected] 4 IDK – Institut für Diagnostik und Konservierung von Denkmalen, Germany, [email protected] ABSTRACT Through implementation of high quality energy efficiency solutions a remarkable reduction in the energy demand of historic buildings is achievable. Those solutions have to be very specifically targeted and adapted to the particular building case. Important basis for this approach is an experienced multidisciplinary team which guarantees a failure free implementation. This is the base postulate in FP7 project 3ENCULT. The paper outlines actual experiences with multidisciplinarity in the planning process both in heritage objects and low energy buildings and illustrates how the – in conservation well established – “Raumbuch” (room book) can be integrated with energy issues to support the constructive discussion across disciplines. It describes, which specific issues the conservation and energy experts look at in the survey and documentation phase and how the joint an structured documentation, not only on an aggregated level, but down till the single room supports also the development of solutions, comparison of different options and finally selection of the best one for the specific building. The potentiality of the tool does however not end with the support during a single energy retrofit as: Well documented study cases, where the reasons for decision can be reproduced, allow applying solutions in „smaller“ projects where the application of the whole process would not be feasible. And finally the comprehensive documentation of as-it-is-state and all interventions together with supporting justification, given over to future generations – of restorers and users of the specific buildings – are the basis for the sustainable maintenance and long-term preservation of this piece of built heritage.