In hot arid desert regions where summer temperatures can easily go above 50 degrees Celsius and solar radiation intensity is extremely high EPS Cement Sandwich Wall Panel provides exceptional thermal protection for buildings. The closed cell EPS core inside EPS Cement Sandwich Wall Panel acts as a highly effective thermal barrier that stops almost all of the intense solar heat from penetrating through the wall into the indoor space. Even when the outside surface of the EPS Cement Sandwich Wall Panel is heated to more than 60 degrees Celsius under direct sun exposure the inner surface temperature on the room side will stay below 28 degrees Celsius. This natural passive cooling effect drastically reduces the runtime of air conditioning systems and can cut the total annual cooling energy consumption of the building by more than 35 percent. The cement outer surface of EPS Cement Sandwich Wall Panel can also be easily coated with high solar reflectance cool roof paint to further reduce the amount of solar heat absorbed by the building facade. Many large scale residential and commercial projects built in Middle East desert regions have adopted EPS Cement Sandwich Wall Panel as their standard wall material to deal with the extreme hot climate conditions and achieve significant energy cost savings.