Kjernerom

Kjernerom is a term used in architecture and building services to describe a room or space inside the central core of a building that houses essential infrastructure. The building core is a vertical structural element that typically contains stairs, elevators, and service risers. In Norwegian practice, the term kjernenrom is used to refer to rooms within the core that house mechanical, electrical, and communications equipment, as well as spaces that provide access to the core’s services.

The kjernenrom itself is usually a secure, fire-rated space designed to house equipment and support systems. Common contents include electrical switchgear, automation and control gear, data and telecommunications equipment, boilers or heat exchangers, and pipe or duct risers. The arrangement within the core prioritizes easy serviceability, clear access, and minimal impact on occupied areas.

Design considerations for kjernenrom emphasize safety, reliability, and maintainability. Fire compartmentalization and robust construction are important to limit hazards between the core and inhabited spaces. Adequate clearance, ventilation for equipment, and provisions for future upgrades are typical requirements. The core also serves as a structural stiffening element for tall buildings, so its integrity is central to overall building performance.

Usage and terminology of kjernenrom vary by country, project, and firm. While the concept described here is common in high-rise and complex buildings, the exact definition and placement of kjernenrom can differ. In practice, it is part of the building’s technical core, supporting vertical circulation and essential services while separating them from living or working spaces.

See also: Core (architecture), Mechanical room, Electrical room, Service core.