09/15/2026
Spray-foam attic—but your ducts are still sweating?
Open-cell spray foam is vapor-permeable, so moisture can still migrate into the attic. When the attic dew point rises above the cold duct-surface temperature, condensation forms.
A properly installed attic dehumidifier helps control humidity, lower the dew point, prevent sweaty ducts and protect your home and HVAC system.
📞 Call GreenTree Air Conditioning—the South Florida attic-humidity experts: 954-657-8498