Block Bats From Attic Vents

The exterior screening is mainly to discourage another bat from roosting up under the gable on the outside.

Block bats from attic vents.

The crew found bats living up inside the louvers of an attic vent. You should start with using an exclusion device covered in this guide and a combo of bright floodlights essential oils sound generators and possibly some hanging ornaments foil or mirrors. Check for dark brown stains around your roofline dormers vents and roof trim. We are installing 4 mesh galvanized steel hardware cloth on the outside of the gable vent to prevent bats from entering the structure.

They eat pesky bugs. However if you already have a bat a problem in your attic use a variety of methods to drive them out. Bat skin secretes an oil that rubs off on the walls of your attic leaving a tell tale sign that you have unwanted guests. 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.

Once your attic or home has become undesirable to bats it s time to exclude them from your property. The best defense against bats is to block entry into your attic. It s 6 inches long and has four flexible tabs at one end to attach the excluder over the bats entry exit point. Leave the funnel installed over the entry point for at least 2 weeks.

As mentioned all the gable vents have screening on the inside so it s unlikely anything would try to get into the attic anyway. Personally i like bats. They are designed to fit on top of any hole which bats have been using as an entryway. The device can also become congested with bats causing a proverbial roadblock or clogged drain.

As you can t be sure exactly how they re getting in you need to plug all the possible entrances. If you block up the attic vent then bats can t get into your attic itself. Excluders are boxes that allow the bats to exit the roost but block off the return route. One way exclusion devices specifically made for bats are available in stores.

The bat cone excluder is a great option. The bats will get stuck and die. Use hardware cloth to to seal off the ridge louver and attic vents as well as the chimney inlets. When there is no doubt the bats are gone you can remove the funnel and seal the entry with wire and or sealant.