Please indicate whether the space above the room is exposed to outside air (e.g., in the case of an attic), or if it is a heated or unheated room. This information significantly influences the calculation of the required heating load for the room.
Note: If an unheated attic is not included in the calculation, the ceiling below it should be considered as "adjacent to outside air." If roof insulation is present, an adjusted U-value for the ceiling can be specified. To simplify the calculation, the roof insulation can be directly assigned to the top floor ceiling.