Soffit vents are openings located in the eaves of a roof, allowing fresh air to enter the attic space. They are typically installed under the overhang of the roof and help promote proper ventilation. This airflow is essential for regulating temperature and moisture levels in the attic, which can prevent issues like mold growth and ice dams. By facilitating air circulation, soffit vents work in conjunction with ridge vents or other exhaust vents to create a balanced ventilation system. This helps maintain a healthy environment in the attic, extending the lifespan of roofing materials and improving overall energy efficiency in the home.