What is the minimum required fire-resistance rating for a fire barrier separating an operating room from a general corridor?

According to NFPA 101, Life Safety Code, and other relevant building codes, the minimum required fire-resistance rating for a fire barrier separating an operating room from a general corridor is typically 1 hour. A fire barrier is a continuous fire-resistant wall assembly designed to restrict the spread of fire. Fire-resistance rating refers to the duration for which a passive fire protection system, such as a wall or door, can withstand a standard fire resistance test. The 1-hour fire-resistance rating means that the fire barrier is designed to prevent the passage of fire and smoke for at least one hour. This rating applies to the wall assembly itself, as well as any openings in the wall, such as doors and windows, which must also have appropriate fire-protection ratings. The specific requirements for fire barriers and fire-resistance ratings may vary depending on the building occupancy, height, and construction type, so it is important to consult the applicable building codes and standards for the specific project. The fire barrier's rating ensures that occupants have adequate time to evacuate and that the fire service can respond effectively.