Q. Can a bad duct system lower the quality of the air inside a home?
A. Yes! There are several way poor duct systems may work to lower indoor air quality.
- Unsealed return air ducts may allow unfiltered air to enter the home bringing with it heat, humidity, dirt, spores, allergens and other materials.
- Unsealed supply air ducts may release conditioned air into unconditioned spaces, creating a net negative pressure inside a home causing unfiltered to enter the home by way of any crack, crevicse or unsealed opening in the structure.
- Ducts with excessively high static may reduce system air flow, creating dew point conditions within the duct system resulting in excess moisture that created a breeding ground for microbial growth in both the ducts and air handling equipment.
- Duct systems with poor, inadequate or compromised insulation may also exacerbate the growth of microbial organisms.