What is a firewall designed to do?

A firewall is an essential structural component designed primarily to limit the spread of fire between different sections of a building or between adjacent buildings. This is achieved by creating a barrier that is resistant to fire for a specified period, helping to contain a fire to one area and preventing it from spreading to other parts of the structure.

The function of a firewall is crucial in enhancing the overall safety of a building's occupants, as it provides more time for evacuation and for fire extinguishing efforts to take place. The use and placement of firewalls are governed by building codes and standards to ensure that they meet safety regulations and are effective in fire containment.

The other options, while related to various aspects of construction and electrical work, do not accurately describe the primary purpose of a firewall in the context of fire safety and prevention. Supporting structural integrity relates more broadly to the function of various components in a building. Enhancing aesthetic value addresses design considerations that don't pertain to safety, and preventing electrical surges deals with electrical systems rather than fire containment.