High-mountain shelter, 1970
In 1968, the CAF (Club Alpin Français) decided to build a new refuge for 70 people, and called on the Atelier d'Architecture en Montagne (AAM). Architect Guy Rey-Millet sought the advice of Jean Prouvé, with whom he studied a high-altitude housing project at the Arc 2000 resort, based on a metal structure covered by composite panels. Prouvé introduced the system developed by his colleague Léon Pétroff. This lattice-work system enabled lightweight elements to be assembled by a small number of workers, without the need for lifting equipment.