In workshop held on Oct 31, the question for wall A fire raring is 0 according to IBC table 508.4, since it is a wall between cafe( Occupant group M) and office( Group B).
Although I can find out this answer after studying, I feel the table 508.4 should be out into somewhere else. This table isn’t really connected with area and height. However I know there must have good reason to put this table in Chapter 5.
Please share your opinion regarding this. Any explanation is highly appreciated.