This paper describes the results of CFD analysis and measurements regarding indoor climate in winter and summer in a wooden office with a hyperbolic paraboloid roof. In winter, the air from the underfloor space heating was circulated whole the room by the temperature difference ventilation. In summer, the first floor was cooler than the second floor by cool radiation from the floor surface by cold storage in the underfloor space. Furthermore, the average temperature of the room from winter to summer was 25°C. The staff have cultivated their cognitive temperature scale for comfortable sensation in winter and summer, respectively.
