Bats, most generally, enter homes from construction openings on the roof of the house. More specifically your roof ridge vent, a type of vent that is installed at the peak of your home’s roof. This vent warps over time due to heat and exposure to the elements and makes enough space for bats to enter. Bats only need about 6mm to be able to squeeze into a space.
Once in the home, bats will begin to roost during the day in attics, eaves, soffits, and porch overhangs. Bats are very temperature sensitive and will move down walls when the attic gets too hot during the day to find a cooler spot. Once night comes and the bats are ready to feed, they will look for an opening, which is often into your living room, kitchen, bedroom…you get the idea.