The best defense against bats is to block entry into your attic.
How to keep bats out of attic vent.
Bats will hibernate in the winter if the temperature stays at around 35 to 40 f.
Use hardware cloth to to seal off the ridge louver and attic vents as well as the chimney inlets.
Set a ladder near an attic vent.
The rule of thumb is to seal up all passages that exceed an inch which means that once out the bat can t come back in.
If you have located more than one opening then what you need to do is to close all but one preferably the one that is the most used.
These are usually made of wood and provide enough space for several bats to roost while keeping out light and allowing for drainage of their urine and guano.
Prevent bats and other animals from taking up roost in your attic.
Screening the opening underneath.
You can hang the bat house high up on a tree where the bats are most likely to fly inside of it.
Sealing off the attic may work if you can pinpoint the exact place s the bats are coming and going but if you don t do it right the tenacious creatures will weasel their way back in or find a new point of entry.
Turn up the feet of the ladder so the ladder s spurs can hold the ladder firmly on the ground.
As you can t be sure exactly how they re getting in you need to plug all the possible entrances.
The crew found bats living up inside the louvers of an attic vent.
Bat proofing squirrel proofing too ridge vents is accomplished by.
Removing the current ridge vent.
Killing them is both inhumane and will create an unlivable environment due to the smell of a colony of decaying bats.
Screening is effective although sometimes a total exclusion is needed.
Re installing the ridge vent with glue and screws.
Take a look at this video to see how its done.
Filling in any gaps openings at the ends of the vent.
How to remove bats from attic to get them out identify their entry and exit points making sure not to seal them while the bats are inside.
Keep looking to make sure that there are not more.
Stand with your toes touching the base of the ladder.