Heating ducts as they cool also make banging noises as do.
Loud thump on roof.
If the troubling sound is a whine replace the unit s filter before turning it back on the restricted air flow caused by a dirty filter could be the cause if the sound returns shut down the system again and leave it off until a heating ventilation and air conditioning hvac professional can take a look unless temperatures are so extreme that you have no choice but to use it.
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.
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.
If it s coming from the radiators you may have condensed steam.
Its not all in one area.
Very loud mysterious thump in the ceiling above the first floor of 3 story house.
The energy released by this movement is what causes the loud banging or cracking sound.
There are loud banging noises coming from our attic roof.
It comes from all around the room.
Movement as little as a quarter of an inch can produce a bang joe nelson owner of twin city home remodeling in minneapolis saint paul says.
Most of the noises seem to be coming from the top of the walls.
The thump occurs several times a day usually in the evening.
It is unrelated to plumbing usage or to start and stop of hot water heating system.
On a straight reroof once the roofer opens up the roofing membrane tar and gravel composition shingle or wood shake there will often be rotten wood members caused by dry rot.
It is very loud on the first floor coming from different places on the ceiling not so loud on the second floor.