What is the main purpose of a fire wall in buildings?

The main purpose of a fire wall in buildings is to protect against fire spread. Fire walls are specifically designed to prevent the passage of fire and smoke between different sections of a building or between adjacent structures. By creating a barrier that is resistant to fire for a specified period, these walls help contain a fire to its point of origin, allowing occupants more time to evacuate and reducing the risk of fire spreading, which can save lives and minimize property damage.

While a fire wall may inadvertently provide some structural support, its primary intention is focused on fire prevention and control. It does not primarily serve as an aesthetic element, although it may contribute to the overall appearance of a building in certain designs. Insulation is another function that can be beneficial in a building but is not the primary purpose of fire walls, which are engineered specifically for fire resistance and compartmentalization of space.