In which scenario might a combination sprinkler/standpipe system be required?

A combination sprinkler/standpipe system is typically required in large warehouses or multiple-story buildings due to the size, height, and fire protection needs associated with such structures. These buildings often have complex layouts and may contain various hazards that necessitate a comprehensive fire suppression strategy.

In large warehouses, the potential for a significant fire is heightened due to the presence of bulk storage, industrial equipment, and combustible materials. A combination system ensures adequate coverage for both vertical and horizontal fire spread by providing sprinkler protection to suppress flames early and a standpipe system to assist firefighters in reaching higher floors and areas that may require manual hose deployment.

Additionally, buildings with multiple stories pose challenges regarding water pressure and reach; the standpipe component enables fire crews to tackle fires at elevated heights more effectively, ensuring they have direct access to needed water supplies without relying solely on portable extinguishers or the sprinkler system alone.

Other types of installations, such as residential buildings, outdoor settings, or small retail spaces, generally have lower risks or simpler designs that may not require the extensive capabilities of a combination system, as they might be sufficiently protected by standalone sprinkler systems or other fire safety measures.