Keep bats out of a school by maintaining the building envelope and, when a colony is established, using a legally timed, monitored one-way exclusion before sealing entry points. Do not handle a bat found indoors; keep people away and contact local public health or animal control for advice. Seasonal rules vary by location, so check with the state wildlife agency before exclusion work.
Prevent bats from entering
Make bat prevention part of routine facilities maintenance. Bats can fit through openings as small as ¼ inch, according to the CDC, so inspect small gaps as well as obvious holes.
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- Check rooflines, soffits, vents, screens, door gaps and utility penetrations.
- Repair damaged vent screens and keep exterior doors closed tightly.
- Close inactive openings with suitable durable materials, such as caulk, flashing or screening. Do not seal an opening bats are actively using until exclusion is complete.
- Keep dumpsters and cafeteria waste containers closed. Shielded or motion-activated lighting can help limit insects near the building.
Michigan DNR specifically advises school staff to inspect rooflines, soffits and vents and seal openings with durable materials. See its school and business guidance.
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- Clear the area. Keep students and staff away from the bat. Do not touch or try to handle it.
- Call for local advice. Contact animal control or the local health department for instructions on safe capture and whether the bat may need testing. Do not release it before public-health advice if testing could be needed.
- Consider an exit only if advised and safe. Michigan DNR says that, where appropriate, staff can open exterior windows, close interior doors and turn off lights to allow a bat to leave. Follow local public-health advice instead if anyone may have been asleep, cannot reliably report contact, or may have been bitten or scratched.
- Act promptly after possible contact. Contact public health after a bite, scratch or possible direct contact, even if no mark is visible; bat bites can be tiny or unnoticed. Seek prompt medical advice about possible rabies exposure. Contact a veterinarian if a pet had contact.
The CDC bat guidance advises avoiding contact and consulting public health about possible exposure and testing.
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How to remove a colony without trapping bats
A colony requires a complete exclusion plan, not simply sealing the visible hole. Bats trapped inside may move into occupied parts of the building or be left unable to exit.
- Identify access points and activity. A qualified operator can inspect likely openings and observe exits around dusk; staining or droppings near openings can also indicate activity. Identify other potential openings, not only the one where bats are seen emerging.
- Check local rules and timing. Confirm the species, permitted season and any permit or operator requirements with the relevant wildlife agency before work begins.
- Fit one-way exits to active openings. Purpose-made valves, tubes or netting should let bats leave without allowing them back in. The exclusion method must avoid trapping or injuring animals.
- Monitor before closing anything permanently. Leave devices in place for the period required by local rules and conditions, and verify that bats have left before removing the devices.
- Seal the openings. After exclusion is complete, remove the devices and permanently close access points with durable materials.
Do not watch bats leave one evening and seal the opening immediately; others may remain inside. The Pennsylvania Game Commission guide recommends leaving one-way valves in place for five to seven nights. Florida FWC specifies at least four nights when forecast overnight temperatures are at least 50°F. Those are jurisdiction-specific instructions, not interchangeable universal minimums; follow the applicable local requirement and account for cool weather or reduced activity. See Florida FWC’s guidance and the Illinois Department of Public Health exclusion guidance.
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- VERSATILE APPLICATION: Ideal for residential and commercial use in high-risk areas such as bell towers, garages, warehouses, sports stadiums, and under-roof overhangs.
Choose the exclusion season locally
Timing matters because flightless young may be trapped when adults are excluded. The CDC gives general advice to avoid trapping young during May–August and says fall or winter is generally best for bat-proofing. State rules differ:
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| Authority | Seasonal guidance |
|---|---|
| CDC | General advice: avoid trapping young during May–August; fall or winter is generally best for bat-proofing. CDC guidance |
| Michigan DNR | Typical maternity season: May–mid-August. Michigan DNR guidance |
| Florida FWC | Exclusion or removal is prohibited April 16–August 14. Florida FWC guidance |
| Illinois Department of Public Health | Permanent eviction is allowed in specified spring and late-summer/autumn windows when temperature conditions are met; consult the Illinois guidance for the conditions. |
These examples do not establish the rules for other states or for every species. Ask the wildlife agency responsible for the school’s location whether the proposed dates, method and species require a permit or professional involvement.
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- 2 Pack One-Way Bat Excluder Device: Includes 2 black one way bat doors, each about 19 x 9 x 7 cm; Suitable for covering multiple attic, roof, soffit, vent, siding or wall gap entry points around homes, barns and sheds
- Single Direction Outlet: The bat exclusion tube allows bats to leave through the opening while helping reduce re-entry; A humane bat removal device for outdoor wildlife control without trapping bats inside the structure
- Retractable Flexible Tube: Designed with a stretchable tube to adapt to different gaps, angles and surfaces; Useful for roof edges, eaves, attic vents, siding cracks, chimney gaps and other common bat access areas
- Heavy-Duty Recyclable Plastic: Made of black plastic for repeated outdoor use; Lightweight, compact and easy to store after removal, making this bat deterrent device practical for seasonal pest control and property maintenance
- User-Friendly DIY Setup: Suitable for homeowners, landlords, farm owners and pest control workers; Install over the main bat exit after sealing nearby gaps, then remove once activity stops and complete final gap repairs
Handle droppings and repellents safely
Bat and bird droppings can be associated with Histoplasma exposure when disturbed. CDC/NIOSH recommends preventing droppings from accumulating. Restrict access before cleanup and assess the amount, location, building condition, weather and proximity to people. For substantial accumulations or work likely to create dust, seek qualified occupational-health or remediation advice rather than treating it as routine janitorial work. See CDC/NIOSH guidance on preventing exposure.
Ultrasonic devices and chemical repellents do not eliminate a bat roost, according to CDC/NIOSH. For a colony or uncertain entry points, use a qualified local operator familiar with bat exclusion, local rules and school settings.
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- 2. Appropriate Size: The roll design measures 15.7 inches by 16.4 feet, fitting areas of different sizes.
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Rank #4
- [One-Way Channel Design] The bat cone features a one-way door mechanism that allows bats to easily exit from the inside, but once they fly out, they cannot re-enter. This clever design ensures bats can leave safely.
- [Right Angle Design] The 90-degree right angle shape allows for flush installation against walls, eaves, or rooflines without requiring additional spacers or modifications. Perfect for tight spaces where straight tubes cannot be installed, easily adapting to various complex positions.
- [Long-Lasting Use] The bat cone is made of heavy-duty material, maintaining structural stability throughout the entire exclusion process. Resistant to cracking and reusable.
- [Easy to Install] This bat removal cone is cleverly designed and easy to install. It protects building surfaces from damage while maintaining the structural appearance.
- [Packaging Includes] 2 Bat cones and 8 screws.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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