Bats are generally found in attic spaces because its warm, quiet, and in areas that are more easily accessible. They are protected in Michigan and in most states; so no–you cannot just trap or kill them for being a nuisance and coming into your home. Bats are important to control the mosquito population and to help with seed distribution and plant pollination.
That being said, they do pose some health hazards and you don’t want them living in your residence. Bat guano, or feces, does carry diseases that are released into the home when the guano is disturbed. This is why its not recommended to do your own bat mitigation. Proper PPE (Personal Protective Equipment) must be worn, and it must be thoroughly cleaned and equipment run for the air to be cleaned.
Bat mitigation is a bit of an art. Do not mitigate bats from April to August. Juvenile pups (bat babies) are flightless at this time and unable to exit the structure. Its best to mitigate when bats are very active, which in the Upper Peninsula of Michigan is in August into October.
There are a few ways to mitigate bats. Depending on their chosen roost we may use one or a variety of mitigation techniques as well as professionally cleaning the roost in your residence. Mitigation Techniques include;
- Prevention. Plug up their entry. Bats can get into homes by as small as a 5/8 of an inch for some species and 1/2 an in for big brown house bats. Sometimes one-way bat check valves are installed. This device lets the bats exit the residence by doesn’t let them back into the home, forcing them to make a new roost elsewhere.
- Dissuade. Bats hang out in eaves or by home or business entrances can generally be deterred from hanging out and building their roost by putting up Plexiglas, or aluminum foil. The shiny aluminum foil makes it a bad place to sleep an a difficult surface to grip. The Plexiglas is also difficult for them to grip.
- Alternate Roost. Providing a Bat House gives them an alternative, better option, to roost. By placing the bat house directly in the sun and painting it black provides the heat that they enjoy. Place the bat house in a quiet location away from noises and make sure they have easy access.
Carey Contracting has been handling bat mitigation for several years. We have experience with both commercial and residential bat mitigation. We serve the Central Upper Peninsula and Northeast Wisconsin. For all of your bat mitigation needs call our office at 906.774.1381.