This paper explains the challenges posed by pools in building enclosure design and illustrates these challenges with several forensic case studies of natatorium failures across North America. The lessons learned from these investigations have led to several rules of thumb that govern modern natatorium design. The authors also show how advanced computational fluid dynamics modeling can be integrated with building enclosure design to mitigate the risk of condensation and comfort issues. Other aspects of the design—including point-supported glazing, precast structural elements, and concealed HVAC systems—are described in the context of a high-performance natatorium enclosure. This paper will be a valuable resource for professionals designing high-humidity occupancies with large glazing ratios.
This paper was presented at the ASHRAE 2025 Buildings XVI Conference.