How should penetration holes resulting from the removal of conduit or piping be handled?

Sealing penetration holes that result from the removal of conduit or piping is essential for maintaining the integrity of fire protection and ventilation systems. When such holes are not properly sealed, they can create pathways for smoke, heat, and fire to travel from one area to another, undermining the effectiveness of the ventilation and fire suppression systems in place. Additionally, unsealed penetrations can lead to the infiltration of grease and other flammable materials, which poses a significant risk in commercial cooking environments.

The NFPA 96 standard emphasizes the importance of sealing these openings to prevent any potential hazards. Sealing helps contain fire and smoke, ensures that the HVAC systems operate efficiently, and reduces the risk of fire spread, which is crucial in a setting where cooking operations are prevalent. Therefore, ensuring that all penetration holes are correctly sealed aligns with best practices for safety and compliance within commercial kitchen operations.