Balanced ventilation means the attic has a sensible relationship between intake vents and exhaust vents. In many homes, air enters low near the eaves and exits high near the ridge or upper roof area.
Why It Matters
Balanced airflow can help reduce trapped heat and moisture in the attic. It also helps roofing materials perform closer to the way they were intended.
Common Problems
Problems include blocked soffit intake, too little intake, mixing exhaust types, installing vents without considering attic layout, and assuming one vent product solves every ventilation issue.
Building Codes & Industry Standards
Building codes and manufacturer instructions commonly reference attic ventilation ratios and placement. Homeowners do not need to memorize the math, but they should understand that ventilation is a designed system, not just a collection of vents.
Exterior Echelon Notes
Exterior Echelon reviews intake and exhaust together so ventilation recommendations are based on the home, not just the visible roof surface.
