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Air Vent High EfficiencyPower attic fan 1500-CFM Weatherwood Galvanized Steel Electric Power Roof Vent

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Variable speed motor that adjusts to the conditions of the attic for greater efficiency and energy savings
1,500 CFM (cubic feet of airflow per minute)
On-board computer with temperature and humidity sensors monitor attic conditions

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Roof-mount power fans are a type of motor-driven attic exhaust vent that make up half of a balanced attic ventilation system for each roof. Intake vents make up the other half of the system. Together they help remove any built-up heat and moisture inside the attic for year-round ventilation. Use the Lowe's calculator to determine how many roof-mount power fans are needed per roof.

Variable speed motor that adjusts to the conditions of the attic for greater efficiency and energy savings
1,500 CFM (cubic feet of airflow per minute)
On-board computer with temperature and humidity sensors monitor attic conditions
Ventilates up to 2,100 square feet of attic space
Suitable for 3/12 to 8/12 roof pitch
Part of a balanced attic ventilation system for year-round airflow
Helps to fight heat and moisture buildup inside an attic as well as ice dams in cold climates
Requires intake ventilation for proper performance
Use the Lowe's online calculator to determine how many are needed for each attic