Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Hi Brianna! I'm having a little trouble figuring out how the first screenshot fits into the issue, but just in general, in order to draw a subsurface, you have to double click into the desired thermal zone to enter "openstudio space." It looks like you've done that in the 2nd and 3rd screenshots. Once you're in openstudio space for that thermal zone, you just have to draw a complete polygon within an existing surface and most of the time it will realize that you want that to be a subsurface. I think maybe the issue you're running into is that you're drawing too close to the edges of the thermal zone. In the second screenshot, you can see that you've left a lot of space between the subsurface and the nearest thermal zone edge, and it was successful. Try drawing your large rectangle a bit offset from the wall edges. Energetically, that translational shift should make no difference.
Alternatively, you can draw your subsurfaces in "sketchup space" (not double-clicked into a single thermal zone), and then use the Project Loose Geometry button on the OS toolbar to move it into "openstudio space." Even using this method though, I would still offset your subsurfaces a bit from any thermal zone edges.
