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Moaning noise attic.
There are a few possible sources for this sound but none of them ghostly or even worrying enough to call.
Open the highest faucet inside your house.
If the noise is similar to a ball or something rolling around then this is most likely rats or squirrels rolling nuts around your attic.
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This is actually the most common noise issue with attic fans.
Shut off your home s main water supply valve.
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 can cause the fan to start making constant noise and in some cases even a loud squealing sound.
If you hear the noises in the daytime especially shortly after sunrise and shortly before sunset you have squirrels in your attic.
The mount can become loose especially on fans that are installed on the roof.
Clicking knocking and clanking no that s not the sound of chains rattling in the attic.
If you hear thumping in your attic at night it s most likely a larger animal such as a raccoon or opossum engaged in jumping from one area of the attic to another actively shoving or destroying something or dragging something heavy.
If it s loose it will wobble and vibrate against the surface creating a huge racket.
This is the most common animal that lives and nests in the attics of houses.
Most of these sounds can be safely ignored.
You can t inspect the air chambers so this procedure is a must whenever you notice a faint noise in the pipe.
If there are vocal noises in the attic then raccoons are going to be the most likely culprits since they are one of the few that actually talk.
It is the eastern gray squirrel sciurus carolinensis which inhabits most of the united states including the west coast.
Remove the current worn out bearings and replace them.
We ve all heard strange noises bumps creaks clinks and clanks in our house at night.
What causes noisy water pipes and when is the noise a problem.
Attic fans also have small ball bearings that help lubricate the fan s movement.
Heating ducts as they cool also make banging noises as do.