Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Yes, you do have to draw the subsurface in both spaces. If you just have a few then an easy way to do this is to go into the space that already has the subsurface, select the edges of the subsurface but not the face. Then copy the edges, exit the space and enter the adjacent space and choose paste in place from the edit menu. If you watch this video at about 3min mark it shows you how to do this.
I would point out that in general I try to avoid interior subsurfacs unless they serve a specific purpose. e.g. If the thermal properties are important or it is being used for daylighting.
