trying to put a close on this issue and only see one post from zhi li on it:
the example in the commentary is rather involved (see attached) and i'm hoping to just nail down what is required for the exam (or expected of candidates or should be expected from candidates).
seems like there are two separate questions related to required separation (the other being Table 601) but if i can deal with "Mixed Occupancy" here.
1. we are talking about the rating of different OCCUPANCIES as they relate to required fire separation for walls or floors/ceilings on the interior of a building is that right?
2. and presumably you would be given an example where one room was for a Seances and another room (adjacent or above or below) was for a Book Store - and then you would go to Chapter 3 and determine which Occupancy/Use these two /functions/ fell under in terms of occupancy?
3. at that point you would simply read the chart and find the row for Seances (call it Occupancy E) and move over to the column for Book Store (call it Occupancy M) and you would determine that the WALL or FLOOR/CEILING was a 1 hour rated wall for a Sprinklered Building and a 2 hour rated wall/floor/ceiling for Non-Sprinklered?
full extent of what we need to know?
i hate to hammer away on these things but it would be nice to nail down what feels like a moving target.
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