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What does "from outside wall to outside wall" mean?

Question asked by kevinbroussard on Feb 7, 2020
Latest reply on Feb 14, 2020 by milt.werner

NFPA 101:8.3.1.2 and NFPA 2217.2.1 each state that one of the options for Fire Barrier continuity is for the Fire Barrier to be continuous from "outside wall to outside wall" and "exterior wall to exterior wall" respectively. Is it implied that the Fire Barrier has to extend through the exterior wall or to the interior face of the exterior, non-combustible sheathing as required for Fire Walls in NFPA 221:6.9?

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