On Friday, November 27, 2026, from 12:20 p.m. to 1:40 p.m., the engineering firm Switch will host an online webinar on the use of natural ventilation in renovation projects.

This session presents possible strategies and materials for this specific context, where the existing building structure imposes certain constraints. A significant portion of the session is devoted to recent renovation projects in which the speakers have implemented natural ventilation.

Giampiero Ripanti, an architectural engineer, and Mathieu Le Bourhis, an engineer—co-founders of the engineering firm and co-authors of the book *La ventilation naturelle* (published by Eyrolles)—are leading the presentation.

This session concludes a series of six webinars on summer comfort and low-tech approaches, organized by the Interreg France-Wallonia-Flanders project “Vivons Low Tech Leven.” Participation is free, but registration is required.

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