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.
1,170 CFM (cubic feet of airflow per minute)
Ventilates up to 1,650 square feet of attic space
Suitable for 3/12 to 8/12 roof pitch
1170 CFM for attics up to 1,650 square feet
10 Year Limited Warranty with 5 year Replacement Plus™ protection
Traditional fan with an automatic thermostat
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