Photovoltaic Panels on Existing Roofs: When Does Decennial Liability Apply?

Executive Summary:In French construction law, the applicability of the 10‑year decennial liability regime (“garantie décennale”) to photovoltaic panels installed on existing buildings depends on how the panels function within the structure of the building. Recent jurisprudence, especially the French Supreme Court’s decision on February 19, 2026 (Court of Cassation, 3rd Civ., No. 24‑10.702), clarifies this […]