Oh my gosh! There's a bat in the house!
Most people encounter bats when they become a significant annoyance in their lives. Especially when the bats roost in one's home. It is possible to safely exclude the bats, rather than exterminating the colony, so that these beneficial creatures can go on living somewhere else.
First, how do they get into a home? The answer: anywhere there
is a half- to one-inch opening!
The diagram above shows a number of entry points through which bats
can enter a home. Carefully inspect your house and consider closing
the gaps during the late fall, when the bats have migrated away from their
roost in your home. It you want to begin your exclusion program earlier
in the year, construct a "trap door" for the bats such as that illustrated
below:
This diagram shows how to create a "trap door" for the bats so that
they can emerge from their roost but can't get back in! Have a bat
house ready for them to occupy when you begin your exclusion program.