John Logue was stumped. The contractor designs and installs 55 to 80 HVAC systems a year, but he had never run into this situation - a customer complaining that water was coming out of the homeowner's supply grilles.
Many building codes in the southeastern United States call for increased attic and crawl space ventilation to fight moisture and related IAQ problems. Craig DeWitt, Ph.D., P.E., challenged that notion at the South Carolina Association of Heating and Air Conditioning Contractors' (SCAHACC's) 2003 Indoor Comfort Science Conference.
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