Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
The first object is the surface which is one of the walls, ceilings or floors of the space the second object describes the matched surface. For instance, if two rooms have one common wall OS describes that wall as two surfaces, one for each room. When there isn't adjacent wall it is said to have outside conditions which are described in the last two columns.
