Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
This will depend if you are modelling cross-flow ventilation between different zones or not and how air-tight your building is. If you think it is OK to assume negligible air flow between zones (e.g. classroom and corridor) then you can possibly ignore interior doors. Obviously, this will speed up your simulation as you will have less number of sub-surfaces.
