The thump occurs several times a day usually in the evening.
Loud thud 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.
It happens irregularly almost like someone dropped a heavy weight or fell and the house shakes a bit.
If it s the fall or.
It is unrelated to plumbing usage or to start and stop of hot water heating system.
There are a few possible sources for this sound but none of them ghostly or even worrying enough to call in the pros.
It is very loud on the first floor coming from different places on the ceiling not so loud on the second floor.
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.
Sometimes two or three in a row a few minutes apart.
If nothing obvious turns up you ll need to hire a roofer to look for a loose vent cap on the roof or a piece of flashing that s moving and transmitting the noise down through a rafter and into the.
Heating ducts as they cool also make banging noises as do.