Is an FT rating required for a metal pipe that passes through a firewall?

In the context of building codes, an FT (Firestop) rating is important for maintaining the integrity of fire barriers such as firewalls. When a metal pipe passes through a firewall, it creates a penetration that could compromise the fire resistance of that wall. Fire walls must maintain their integrity to prevent the spread of fire and smoke between different areas of a building or between buildings.

The requirement for an FT rating stems from the need to ensure that any penetrations through fire-rated assemblies do not allow flames, heat, or smoke to pass through. This is essential for protecting occupants and property, as well as for meeting the fire safety standards outlined in building codes. Hence, for any pipe, including metal pipes, that penetrates a firewall, having an FT rating is mandatory to properly seal around the penetration and maintain fire-resistance.

In various codes, including the National Building Code of Canada, provisions are laid out that establish the necessity for fire-resistance ratings for all penetrations. This requirement is based on the notion that if materials or systems pass through a rated assembly, they too must meet specific ratings to retain the overall effectiveness of the assembly in containing fire. Overall, the focus is on enhancing fire safety and minimizing risk in the event of a fire,