GB 50222-2017 第4.0.1条
| | In hotel buildings (guesthouses), the ceiling, wall, and floor finish materials of evacuation corridors and safety exit lobbies shall be Class A (non-combustible) materials. |
| | In hotel buildings (guesthouses), the ceiling, wall, and floor finish materials of evacuation corridors and safety exit lobbies shall be Class A (non-combustible) materials. |
12 hotel MEP experts online, answers cite standard clauses you can verify.
Ask free →Engineering reference only — verify against project conditions and the latest codes.