Fan Noise In Attic

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Fan noise in attic.

The attic fan tends to makes a humming noise when it has a few blades and is running at a high speed setting. In general a large capacity fan running at low speed makes less noise than a small fan operating at high speed. Most attic fans have an in built thermostat that moderates their usage by turning them on and off depending on the temperature in the attic. In order to get rid of the hum you need to either operate the fan at a low speed or replace the fan with a new one that has more blades.

Rather than bringing in fresh air from the inside of the home like a whole house fan for instance an attic fan is a specific type of fan designed to remove the hot stale air from the attic of a home. Blades are essential parts of every fan and there is no difference with attic fan as well. All whole house fans should be installed with rubber or felt gaskets to dampen noise. Attic fans also have small ball bearings that help lubricate the fan s movement.

Remove the current worn out bearings and replace them. This might cause due to the striking of the bent blade to other parts of the fan. Attic venting fans attic fans serve a different function removing the hot and moist air from the attic and leaving the space below the attic floor alone. This can cause the fan to start making constant noise and in some cases even a loud squealing sound.

Millions of people enjoy their attic fans on a daily basis especially during summer time. The attic fan on the other hand blows warm air out through the roof or a gable vent and the fresh air is drawn in through the roof and vents. The whole house fan pulls the warm air from the living rooms into the attic and fresh air is drawn in through open doors and windows. You will feel the benefit of this fan mostly on your cooling bill.

In case the fan blades are imbalanced or bent it might call up a humming or rattling noise in the fan. You need to secure the screws in place more tightly by rotating the screwdriver clockwise. You can set a multi speed fan to a lower speed when noise is a problem. If this does not stop the noise then slide a washer over the screw so it will be positioned between the screw and the fan.

Due to regular wear and tear these bearings can become worn out or lose their lubrication ability. Soundproofing advice the purpose of an attic fan is to lower the temperature in the attic by blowing out hot air.