Hey Bosco,
Lots of posts and good information out there on bat exclusion. Best way to assure a long term bat free home or building structure is to exclude bats.
Involves knowing where they are coming and going from, knowing how to seal the rest of the areas, and ultimately how to "vent" or allow the bats to
exit through one way valves or systems for a period of time, before removing those and sealing the structure.
This is a massively oversimplified version of it, but please look into bat exclusion. It is the way to go, no need to trap them or attempt to do so, exclusion
is effective and when done right provides a long lasting impact, good for bats, good for people.
Lots of people on here perform this type of work every year, I'm sure you'll get more feedback.
Just saw this and wanted to get you started...
One resource (no one single resource is perfect or covers all topics or issues you may run into) you can read to get some direction is this:
https://www.whitenosesyndrome.org/sites/default/files/resource/wns_nwco_amp_1_april_2015_0.pdfBest,
Justin