It s intermittent depending on how gusty the wind it.
Vibrating sound in eaves of attic.
But most of the time it s an animal and it s pretty easy to tell when the noises are coming from something living.
On the outside we can hear something vibrating too and it sounds like it s coming from the soffit vents.
You need to put a stop to this or the metal firebox inside your fireplace could rust creating a fire risk.
On a windy night we can hear it inside and it is very loud the stronger the wind the louder the noise.
Remove the top brick of the stack at each corner to insert the vibration eliminator.
See wind noises on roofs below squeaking and creaking traced to wind blown things attached to building exteriors such as signs antennas aerials weather vanes.
If there s a source of infrasound outside that s 0 5hz off one of your building s resonant frequencies the centre of whichever panel wall floor ceiling is resonating will cycle between extreme vibration and none every two seconds this is a beat tone.
We had a re roof done a couple of years ago and not long after a noise started coming from the gutter areas when the wind blows in a certain direction we get quite a load what can only be described as a groaning vibrating sound.
Fireplace dripping sounds if you hear dripping from your fireplace when it rains it could mean that rain is finding its way down your chimney.
Fast moving scurrying noises are often rodents like squirrels or rats says bob.
So scratching sounds in the attic at night could be from a number of different nocturnal animals.
Add a wood block thick enough so the eliminator and block equals the block thickness if you must.
The most common noise inquiries we get from homeowners are concerns about sounds coming from the attic.
It could even be from the heating cooling system or branches of a nearby tree scraping against the roof.
Assuming this vibration noise occurs only when the a c is running which should be real easy to check out and you cannot find loose mounting bolts or loose metal ducting thgat is vibrating then you should not quit using the unit and call a heating and a c tech to check it out.