Common causes in Triangle homes
- Long, humid summers and shoulder seasons when the AC barely runs
- Crawl spaces with open vents or poor vapor barriers
- Leaky return ducts pulling in attic or crawl space air
- An oversized AC that cools quickly and shuts off before removing moisture
- Blower speed set too high for dehumidification
How to fix it
- Measure: an inexpensive hygrometer tells you where you stand.
- Have your AC checked for sizing and airflow settings.
- Seal return duct leaks.
- Add a whole home dehumidifier if the house stays above 55 to 60 percent.
