The wood warms during the day losing moisture and shrinking slightly.
Popping or settling noise in attic.
At night attic can sometime make loud creaking and cracking sounds.
It s probably your water heater where sediment has settled at the bottom of the tank then popped and.
If that doesn t end the sound replace the dimmer.
When i first moved in i was very concerned by this and thought it was an animal in the attic.
Mice rats birds or other animals may have entered the home and are chewing digging and pecking on the interior of your home from the attic or inside the walls.
Some bulbs mention on their packaging that they are designed to work well with dimmers.
At night a hear sounds seeming to come from the attic that could probably be described as settling sounds and occasionally these sounds have the same volume and characteristics of sound as an acorn falling on the roof.
Also when the temperature becomes very hot or very cold or when sunlight warms one part of a home and not another these noises may become more pronounced.
Skittering sounds squeaks buzzes and other noises coming from your walls and attic may mean there s something living in your house that isn t part of your family.
Wall or attic sounds.
Gas builds up in combustion chamber and the delayed ignition causes a.
Another primary and fairly mundane cause of random noises within a home is settling.
Bubble bubble toil and trouble that popping and bubbling sound isn t the wicked witch.
The noise you hear is not from settling but from wood framing members moving in relation to one another.
For an often lengthy period a house will creak and pop from time to time due solely to its own weight causing the soil beneath the house to compact thus allowing sections or even the entire house to sink slowly and minutely into the ground.
The creaking sound is perfectly normal and is caused by the movement of roof timbers responding to changes in temperature.
One problem that could be causing a popping sound in your walls or in the attic is pests.
A loud popping noise in the attic is often very common especially when there are extreme temperature differences such as large and rapid fluctuations between night and day temperatures.
If a fluorescent bulb is making the noise the fixture s ballast might need to be replaced the ballast is the part of the fixture that controls voltage to the bulb.