Penetrations through required fire-rated assemblies shall be fire stopped with a listed fire stopping material that has a fire resistance rating equal to the penetrated barrier.

Penetrations through required fire-rated assemblies shall be fire stopped with a listed fire stopping material that has a fire resistance rating equal to the penetrated barrier.

• A. False
• B. True
• C. Sometimes true
• D. Not required

Answer: (B)

Maintaining the fire resistance of a penetrated barrier hinges on using a listed fire-stopping material rated to the same fire-resistance duration as the barrier itself. The firestop is chosen and installed to restore the barrier’s tested performance after a penetration. If the firestop’s rating were lower than the barrier, the assembly would not meet its listed fire resistance; using a material with a rating equal to the barrier ensures the combined system remains at the intended protection level. The material must be listed for that use and installed per the listing so its performance is validated. Therefore, the statement is correct; options suggesting it's sometimes true, false, or not required do not align with the need to preserve the barrier’s rating.

Maintaining the fire resistance of a penetrated barrier hinges on using a listed fire-stopping material rated to the same fire-resistance duration as the barrier itself. The firestop is chosen and installed to restore the barrier’s tested performance after a penetration. If the firestop’s rating were lower than the barrier, the assembly would not meet its listed fire resistance; using a material with a rating equal to the barrier ensures the combined system remains at the intended protection level. The material must be listed for that use and installed per the listing so its performance is validated. Therefore, the statement is correct; options suggesting it's sometimes true, false, or not required do not align with the need to preserve the barrier’s rating.