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.
- Traditional fan with an automatic thermostat
- 1,500 CFM (cubic feet of airflow per minute)
- 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
- Limited Lifetime Warranty with 5 year Replacement Plus protection
- 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




































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