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The concept of a Digital Building Logbook (DBL) was first introduced with the European strategy ‘Renovation Wave’. It is considered as one of two fundamental parts of which the Building Renovation Passport is composed: the DBL and a Renovation Roadmap. As the implementation of the DBL is a European priority, this paper reviews the existing literature and analyses the most developed European Digital Building Logbook models. The analysis includes iBRoad, ALDREN, X-tendo, and the Study on the Development of a European Union Framework for Buildings’ Digital Logbook, from the perspective of seven key aspects: References used as a starting point for the model definition; Identification of the relevant stakeholders in the DBL; Identified potential user needs; Proposed structure of indicators; Data sources; Potential functionalities; and Operation and use. The results show that important advancement has been made, although there is still no consensus about crucial subjects, such as the indicators to be collected or how to collect and use them. This is probably due to the fact that the final functionalities (objective and scope) that the logbook should provide are not fully clear.

According to the European Commission, the Digital Building Logbook (DBL) is a repository of all of the relevant data of a building. It was first introduced at the European scale in the Renovation Wave strategy and was first defined in the proposal for the recast of the energy performance of buildings Directive in December 2021. The European DBL has not been implemented yet, since a common model does not yet exist. Even though great efforts are being made to establish it, some relevant issues need to be addressed first. One of them is the identification of data sources that will feed the DBL. Existing digital data sources have already been explored in some countries and they have been found to be insufficient. In this paper, new digital data sources suitable for the logbook are identified, and their contribution in terms of indicators and interoperability is analysed. The analysis shows that these sources have great potential to contribute to the DBL, because they bring the possibility to collect a great amount of real data on buildings. However, the main barrier for these tools to be incorporated into the DBL is that their linkage still requires further research.

El presente trabajo analiza iniciativas que contribuyen a aumentar el ritmo de la rehabilitación edificatoria en Portugal, a través de ayudas de carácter económico, con el objetivo de establecer una base que pueda llevar, en estudios posteriores, a la comparación de iniciativas entre países o incluso al estudio de la aplicabilidad de determinadas medidas al caso nacional. Para ello, se describen las características de los principales programas de apoyo en el país luso, aportando los resultados que han producido, así como sus fortalezas y puntos débiles. De esta manera, se ha podido comprobar la diversidad de los programas existentes y su capacidad para dar solución a diferentes problemáticas, con diferentes escalas y necesidades, a nivel financiero y técnico.

La rehabilitación energética de los edificios es una de las principales claves para alcanzar los objetivos de descarbonización de la Unión Europea definidos en la European Green Deal. Para proceder a ellos, una de las herramientas es la Directiva relativa a la eficiencia energética de edificios (Directiva UE 2018/844), la “Energy Performance of Buildings Directive” (EPBD), incluyendo el marco de evaluación basado en Indicadores de Progreso Mensurables (IPM) agrupados en dominios mediante la Recomendación (UE) 2019/786 de la comisión de 8 de mayo de 2019 relativa a la renovación de edificios. El objetivo de este trabajo es analizar la viabilidad de los Indicadores de Progreso Mensurables (IPM) propuestos por la Unión Europea en el ámbito del estado español, estableciendo una visión crítica de la aplicabilidad del marco de evaluación propuesto. En conclusión, la viabilidad de los Indicadores de Progreso Mensurables (IPM) propuestos por la Unión Europea en el estado español presentan varias barreras como puede ser la fragmentación de los datos, la medicación insuficiente y el acceso limitado a ellos. Por otra parte, también se muestran oportunidades para poder mejorar la evaluación de la rehabilitación de los edificios mediante el desarrollo de nuevas herramientas y recursos para la recopilación de datos, entre otros, la monitorización de edificios, “machine-learning” y el pasaporte de renovación del edificio.AbstractThe energy renovation of buildings is one of the main keys to achieve the decarbonisation objectives of the European Union as defined in the European Green Deal. To proceed with them; one of the tools is the Energy Performance of Buildings Directive (EU Directive 2018/844); the Energy Performance of Buildings Directive (EPBD); including the assessment framework based on Measurable Progress Indicators (MPIs) grouped into domains by Commission Recommendation (EU) 2019/786 of 8 May 2019 on building renovation. The aim of this paper is to analyse the feasibility of the Measurable Progress Indicators (MPIs) proposed by the European Union in the Spanish state, establishing a critical view of the applicability of the proposed assessment framework. In conclusion, the feasibility of the Measurable Indicators of Progress (MPIs) proposed by the European Union in the Spanish state presents several barriers such as data fragmentation: insufficient medication and limited access to data. On the other hand, there are also opportunities to improve the assessment of building renovation through the development of new tools and resources for data collection, such as building monitoring, machine learning and the building renovation passport