Roof ridge and soffit ventilation balancing: Combine ridge and soffit vents to create continuous passive airflow

https://www.scribd.com/document/1029659631/Roof-Repair-Cost-for-Chimney-and-Flashing-Issues-160749

Roof ridge and soffit ventilation balancing: Combine ridge and soffit vents to create continuous passive airflow, preventing trapped heat and moisture that accelerate shingle wear.