Proper Attic Ventilation
What does Ventilation do?
Proper attic ventilation systems allow a continual flow of outside air through the attic, protecting the efficiency of the insulation and helping to lower temperatures in the living space. It consists of a balance between air intake (at your eaves of soffits) and air exhaust (at or near your roof ridge).
Virtually every contractor in the country agrees that the most cost-effective and efficient ventilation system has an adequate balance between soffit intake vents and ridge vents for exhaust.
Soffit vents create an air flow much like a “cross breeze.” Open a window on each end of your home and it will create a breeze that moves air through your home. Close one window and the air flow stops. This same concept is used in your attic with soffit (in) and ridge vents or turbines (out). Because the soffit vent is the “intake” vent, it pulls in not only air, but also debris which clogs the screen and obstructs the amount of airflow.
Without airflow in the attic, air becomes stagnant and heats up in the summer.
Without airflow in the winter, moisture can build up and lead to health risks and structural damage.