Precast prestressed folded plate roof elements are cast flat with hinges between panels; they are transported flat, then opened to the desired angle during erection, with joints formed and cast in place to unify he structure. The construction method and design rationale, as developed in China, are being widely used in Honduras for both public buildings and industrial buildings. This paper describes the several such buildings recently constructed, and explains how waterproofing and ventilation are handled in the tropical climate.