What is the required fire rating of a demising partition between tenant spaces?

The required fire rating of a demising partition between tenant spaces is typically 1 hour as it is essential to provide adequate fire resistance to separate different tenant areas within a building. This rating is designed to prevent the spread of fire and smoke between adjacent spaces, allowing occupants more time to evacuate safely in the event of a fire. Additionally, building codes often emphasize this requirement for demising walls to enhance overall life safety and property protection within mixed-use and multi-tenant buildings.

A fire rating of 1 hour balances the need for safety with practical construction methods, making it a standard in commercial building practices. This standard is reflected in codes that dictate the level of fire protection based on occupancy type and use.