With mold, mildew, and humidity-related problems occurring all over
the United States, ASHRAE is examining the impact of its two main
building standards on moisture. Moisture problems have increased in facilities located in humid
climates, such as the Southeast and coastal areas, as well as non-humid
areas, such as the Midwest, Southwest and West Coast states.
"These problems have prompted concerns relative to the levels of
ventilation required in ASHRAE Standard 62 and the ability of single-component, high-efficiency hvac systems required in ASHRAE Standard 90.1 to
adequately dehumidify the air being supplied to commercial, institutional
and industrial buildings," said Terry Townsend, P.E., a member of ASHRAE's
Board Policy Committee on Standards.