When inputting interior surfaces there is a selection at the bottom of the input screen to describe the room that this surface is “Adjacent To”. Without this input, the software does not know what this surface is next to. In the Building Tree, navigate to the interior surface and at the bottom of the input screen, click on the Adjacent To button. Select another room in the list that appears.
Note that inputting interior surfaces between rooms that are in the same zone is not necessary. The only impact you will see from this feature is if you have interior surfaces that are between different zones.
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