This paper provides recommendations on thermal and moisture parameters (air, temperature, and humidity content) in different types of buildings under normal and emergency operation conditions in extreme climate conditions, e.g., cold/arctic (U.S. Department of Energy [DOE] climate zones 6-8) and hot and humid (DOE climate zones 0-2a). Three scenarios are considered under normal operating conditions: when the building/space is occupied, temporarily unoccupied (2-5 days), and unoccupied long term (e.g., hibernated). These thermal parameters are necessary to achieve one or several of the following purposes.

Data from the Centers for Disease Control and Prevention (CDC) shows improper maintenance of public spas increases risk for Legionnaires' disease. Legionnaires' disease affects thousands of individuals each year and represents a signifcant public health burden, with a 10% case fatality rate and an estimated annual hospitalization cost burden of $433 million. CDC's Model Aquatic Health Code (MAHC) offers critical guidance for reducing the risk of Legionnaires' disease in public aquatic facilities.