Loose fascia boards, broken soffit vents, chimney gaps and the like, all will house your neighborhood friendly bat… or bat colony. There are a few ways to animal proof your home when it comes to bats. When you do, it’s a necessity to cover all holes… period. Anything from a 1/4 inch or bigger will give access to bats. Remember, if you seal the main area where bats are entering, they will aggressively migrate to another opening around the property.
- Foam up any gaps you see at the upper part of your home
- Screen off any broken soffit vent at higher parts of home
- Stuff gaps around chimney with steel wool
- Close off any openings you see that leads into your walls or attic (any openings)
- Apply metal screen to any big gaping holes along roofline
Depending on the size of the gap or opening where bats are entering, you need to consider a few different fillers. Black foam bought from online vendors will be ideal – Colored foam fillers are cheaper, easily accessed (local hardstore) but would look cosmetically unpleasing due to bright orange colors, etc. Steel wool is another great product to use to fill-in holes but be certain it’s tucked in quite good as gravity can have them fall out over time.