Against the thermal conditions of housing room

External part of building wall is an influencing part to thermal condition,due to direct contact with its surroundings or its environment. therefore,material used for wall will affect thermal condition of building. in this research,rice hull concrete brick material and pure concrete brick material are applied to investigate which material is energy efficient in order to obtain low temperature of building.rice hull concrete brick hencenforth is called bbsp which is an alternative material for wall,is a concrete made of cement,sand,water and additional rice hull. bandung is one city with tropical temperature and one big rice supplier in indonesia. annual massive harvesting has caused unused material i.e. rice hull in big amount as well. this residue material can be implemented as wall material of a building for maintaining low temperature.experimental method is used to investigate applied materials in the laboratory and then apply thermodack temperature measurement. the aim of this research is to compare between temperatures of wall that apply bbsp and bbm. in order to get this,several parameters are measured include material conductivity value,measurement point,peak temperature,optimum comfort time and oriented direction. it is found that thermal condition of bbsp wall is better or lower than wall applied bbm.