Model for an attic with 2 saddle roofs and a floor toward 5 rooms on the lower floor, with all other walls towards the outside.
The following figure presents the room's layout:
We also tested a model where the attic has just one floor, over the whole building and each room connects to this component through the ceiling. However the model didn't lead to the expected lower simulation times, on the contrary. This model is also more correct, as it is not realistic to think that every layer of the attic's floor has a single temperature.