To restate traditional sustainable solution, Iranian tradiditional natural ventilation

Traditional architecture while energy consumption has not been defined as today, have utilized some passive design methods by attending to the potentials of the regionand made them highlight. At hot climate such as Iran, one of the outstanding technical solution for providingventilation, both for body and structural cooling, were already used in ancient times. Furthermore, other techniques had been applied for achieving comfort and controlling it, as main target, at night, day and each season.A fundamental idea of this approach is focusing on providing zero-condition. According on the improvementof technology and advanced tools and materials, backward to traditional design hints can offer new technicalsolution as regard the climate and it can be away for sustainability and sustainable design. In this paper, be mentioned to traditional passive design at hot climate and the methods which have been used especially for natural ventilation. The Iranian passive cooling windtowersystem which is called Badgir , is one of the techniques for ventilation at hot climate. In this way, by introducing it, we can refer the structure of some new methods to it, such as double skin faade which can be used in contemporary architecture design.