What is the maximum distance a fire wall must extend to the outer edge of horizontal projecting elements?

The correct answer indicates that a fire wall must extend a maximum of 4 feet to the outer edge of horizontal projecting elements. This requirement is set to ensure that there is adequate fire separation between different occupancies or sections of a building. The extension of the fire wall beyond the building’s structural elements helps to prevent the spread of fire to adjacent buildings or areas.

By extending the fire wall to this specific distance, it allows for better protection against fire spread due to the potential for flames or heated gases to travel horizontally across the projecting elements. This requirement is often established in building codes to mitigate risks and enhance overall safety during a fire event.

Options that suggest shorter or longer distances do not align with the established safety standards and guidelines, which are designed to balance practical construction needs with fire safety requirements.