- Poor ventilation: Most homes in the Greater Seattle area have poor attic ventilation, which can lead to moisture condensing and forming mold, rot, and substandard indoor air quality
- Mold: A common area for mold growth in the attic is on the roof sheathing
- Ineffective insulation: Homes without adequate attic insulation are at risk for water damage, heat or cold air loss, and higher energy bills
- Excessive heat: Poor ventilation can trap hot air in the attic, which can lead to uneven roof temperatures, ice dams, and an overtaxed HVAC
- Blocked vents: Blocked intake vents and exhaust venting, bathroom fans vented directly into the attic space, and dryer exhaust blowing warm moist air into the attic can cause moisture to find its way into the attic
- Pest infestations: Another common attic problem
Other attic issues include drafts, dampness, and health problems from allergies and mental health impairments