March 20, 2006


This report summarizes indoor temperature and humidity data that have been collected from houses by the Building Science Consortium of the US Department of Energy Building America Program. Data were collected at 43 houses from May 2000 through February 2005. The houses are located in various southern cities, including Houston, Austin, Dallas, Jacksonville, Fort Meyers, Orlando, and Oklahoma City. Most sites were located in the hot, humid gulf coast region. The data collected from the test homes were analyzed to understand when and for how long high humidity occurred in these homes. The analysis also evaluated how closely high humidity and the need for dehumidification corresponded to cooling operation.