In most buildings, heat is removed from the building because it is not transferable to the areas that require heating. The overall architectural envelope design can help to improve the amount of heat efficiency in order to recover the heat loss during a winter season . However, Thermal control can only be achieved through understanding of the thermal performance of the building envelope in relation to relevant weather parameters. It is also becoming increasingly realized that much can be done to reduce cooling and heating loads and the energy consumption of air conditioned buildings through a proper choice of building envelope materials and envelope design.1 For the previous reasons, the whole scope of the different factors and parameters push to ask the following question : What are the passive solar buildings' dynamic behavior principles and strategies of increasing heating energy performance? In another words , How can we use the sun's heat to worm the building when it is coldwithout relying on any mechanical or electrical equipment?, Does The proper choice of building envelope materials affect the increasing heating energy performance and thermal comfort?