Design Issues for Drawing in Natural Ventilation

The authors outline the knowledge they have gained through their design experience on the efficacy of natural ventilation in non-residential buildings in Japan. They also describe the various challenges which must be overcome to deploy natural ventilation. It is hoped that the knowledge presented in this paper will be of reference in the drafting of guidelines for the research and design of future natural ventilation systems. Natural ventilation yields great energy-saving effects, but it is also necessary to make reference to and examine the numerous challenges which must be overcome at all stages from design to operation, with reference to actual conditions in Japan, and indicate the necessity of developing methods for verifying the performance of natural ventilation.