Table 508.4 (S): A-2 to B = 0 hr.
Occupancies in a mixed-occupancy building shall be separated in accordance with Table 508.4, unless designed as nonseparated occupancies under Section 508.3.
A-2 / S-1 occupancy separation
Dry Storage (S-1) abuts Kitchen (A-2). Confirm whether occupancies are designed as separated or non-separated (508.3 vs 508.4).
Default applied: Separated occupancies — 1 hr assumed at demising wall
Non-separated triggers the most restrictive height/area; separated requires the rated wall to be shown.