Attic Vent Noise

Due to regular wear and tear these bearings can become worn out or lose their lubrication ability.

Attic vent noise.

Of course you try to make the attic scuttle hole use air tight trim on your ceiling cans but it would be foolish to ignore the benefits of a reasonably powered attic fan working in connection with adequate soffit venting. The vent hood ducts through a rigid or flexible pipe to a cap on the roof or side of your home. Building noises such as gurgling drains and some building odors sewer gas methane toilet smells are often traced to defects in the plumbing vent system. Often a stiff wind will open vent dampers causing them to periodically clang shut.

A loose shutter on an attic window or loosened attic vents can cause a banging sound if it s windy as can branches hitting the roof. Air passing through ducts and radiators can sometimes create a loud noise as can water passing through pipes. Lift up the edges of the surrounding roof shingles so you can see the edges of the vent. If it s loose it will wobble and vibrate against the surface creating a huge racket.

Climb onto the roof and locate the vent that is causing the noise. Remove the screws holding the vent in place. Cut through any sealer that may be present. Roof vents and power roof vents are made to work in conjunction with vented soffits so that outside air will replace superheated attic air during hot summer days.

Attic fans also have small ball bearings that help lubricate the fan s movement. This is actually the most common noise issue with attic fans. Heating ducts as they cool also make banging noises as do. This can cause the fan to start making constant noise and in some cases even a loud squealing sound.

This problem is pretty easy to fix. If the noise drives you crazy new spring loaded backdraft dampers 9 to 30 depending on the size should solve the problem. The mount can become loose especially on fans that are installed on the roof. 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.

Remove the current worn out bearings and replace them. A loose attic vent or shutter on a window can make a banging noise in the wind.