ED Sciences Physiques et de l'Ingénieur
Renovation of tertiary buildings with ventilated double-skin facades: proposal for a decision-support tool in the early design phase
by Hugo GUYOMARD (I2M - Institut de Mécanique et d'Ingénierie de Bordeaux)
The defense will take place at 10h00 - Amphithéâtre D 351 cours de la Libération, bâtiment A29, 33400 Talence
in front of the jury composed of
- Delphine LACANETTE - Professeure des universités - Bordeaux INP - Directeur de these
- Simon ROUCHIER - Maître de conférences - Université Savoie Mont Blanc - Rapporteur
- Philippe MARIN - Professeur des universités - ENSA Grenoble - Rapporteur
- Jérôme LE DREAU - Docteur - Université de la Rochelle - Examinateur
- Denis BRUNEAU - Professeur des universités - ENSAP Bordeaux - CoDirecteur de these
- Olivier BAVEREL - Professeur des universités - ENSA Grenoble - Examinateur
The work presented here focuses on double-skin facades as an architectural device, particularly their use in the renovation of tertiary sector buildings. First, a state-of-the-art review of research on this topic is provided. It details both experimental studies on installations replicating double-skin facades and numerical studies using computational fluid dynamics models or dynamic thermal simulation. Since the early 1990s, the rise of these solutions and improvements in modeling capabilities have made this a subject of scientific and architectural interest. However, there are few studies on actual implementations and their potential effectiveness in renovation projects. Twenty projects (both new and renovated) have been identified and described. Three renovations were subjected to in-depth study. For these, semi-structured interviews were conducted with stakeholders involved in the projects (architects, clients, and engineering firms) to gain deeper insights on the motivations and barriers to developing these facades in renovation projects. The main limitations lie in the lack of knowledge, references, and benchmarks during the design phase. Considering this framework, a methodology for modeling and studying the impact of renovating office buildings by adding double-skin facades is described. It relies on parametric design and a multi-criteria analysis of various renovation scenarios. A case study, where the client expressed a desire for renovation, was selected to test and apply the methodology and discuss the relevance of this potential renovation. This study allows for the comparison of over 80,000 renovation scenarios based on economic, energy, and environmental criteria. The results show that this approach meets the objectives by integrating a wide range of renovation scenarios, including double-skin facades, from the early design phases.