If it gets colder than that the bats in the attic will migrate out allowing you to seal up cracks and other entry points once they leave for the season.
Bats in home attic.
Colonies of bats prefer quiet cave like spaces to roost reproduce and raise their young.
A leaky ceiling is definitely a worse case scenario and most home owners that discover bats are in their attic get the problem resolved quickly.
If you hear chirping bat sounds from the attic or very close to the home at night or before dawn you may very well be hearing bats.
They re nocturnal so they live their lives in darkness making your attic a prime piece of real estate for bats.
These winged mammals also prefer dark locations because of their nocturnal nature.
Attics are a cozy home for most bat species as they prefer to live in sheltered dry warm places.
Attics provide better shelter than just about anywhere else so if a bat can get in it s likely to start roosting there.
If you spot any droppings in the attic it s a sign you likely have a pest.
They don t like the cold and your attic is nice and warm.
Signs of bats in the attic.
The longer bats have been roosting in your attic the higher the chance that mildew urine guano moisture and other materials will build up and start seeping through your ceiling.
Bat guano has a very strong noxious smell like ammonia and might be found on the porch decks or window sills as well as the attic.
If you live in an area with mild temperatures throughout the year the bats will stay year round.
Learn more about bat removal.