Abstract
Since the first architectural formation of the mosque built by the Prophet and his companions in the city, two elements, Rahba and Arish, were considered the primary reference for the mosques. The traditional mosque in the Qassim region until the end of the fourteenth century AH, and before mechanical air conditioning, was one of the most similar mosques to the Prophet mosque in terms of formation. The current climatic design concepts of contemporary mosques in Qassim are different than their counterparts in the traditional architecture of yesterday, to which the community has adapted for centuries by exploiting natural resources. This research aims to explore the climatic adaptations of the traditional mosques in the Qassim region - the warm dry continental climate - as well as the views of the construction masters in the Qasimi area on how to make use this in contemporary mosque design. The researcher applied a descriptive analytical approach to study mosques in the region. The research results indicate that there are successful solutions and adaptive climatic treatments in the architecture of traditional mosques in Qassim, particularly considering the formation of spaces, which satisfied both the architect and the community. The community lived with this adaptation for centuries by using specific five different places to pray during the six seasons of the year, enjoying the cooling, ventilation and heating by natural means. Based on this, the researcher recommends the benefits from this study to the contemporary mosque designs in a similar climate.s.