Attic Vent Noise

Heating ducts as they cool also make banging noises as do.

Attic vent noise.

Cut through any sealer that may be present. If the noise drives you crazy new spring loaded backdraft dampers 9 to 30 depending on the size should solve the problem. If it s loose it will wobble and vibrate against the surface creating a huge racket. 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. Remove the screws holding the vent in place. The vent hood ducts through a rigid or flexible pipe to a cap on the roof or side of your home. 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.

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. A loose attic vent or shutter on a window can make a banging noise in the wind. This can cause the fan to start making constant noise and in some cases even a loud squealing sound. Often a stiff wind will open vent dampers causing them to periodically clang shut.

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. Attic fans also have small ball bearings that help lubricate the fan s movement. 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. This problem is pretty easy to fix.

When you hear a banging coming from the attic and are trying to determine the cause you are most likely dealing with one of these four animals. Remove the current worn out bearings and replace them. Climb onto the roof and locate the vent that is causing the noise. 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. Here we explain the causes and cures of these problems.