The general rule of thumb goes “if the head can fit the rest of the body will too”. But what about bats? What size openings can bats get through? Which locations do bats target for entry on a homes exterior?
Bats can pass through holes as small as 3/8 of an inch. To put that in perspective about the size of a dime. It can be challenging to spot holes that small, but not if you’re a bat.
Contrary to popular belief bats are not blind! Bats utilize their eyes and echolocation to navigate their environments and find food. Bats do not tear or rip holes into homes either. They utilize gaps that already exist.
When homes are built there are sometimes construction gaps on the exterior that are unfortunately left open and vulnerable for critter entry. However, not all gaps on a homes exterior are due to incomplete work. In other cases seams open on the exterior of a home after being subjected to the elements and time. These areas typically include soffit returns, facia board intersections, siding to brick intersections, unscreened vents, uncapped chimneys, unprotected ridge vents, etc… If a 3/8’’ opening can be located on the exterior of a home a bat can pass through.
Bats are federally protected and play key roles in keeping ecosystems balanced. Bats like all living creatures are in search of food water and shelter. If bats find a cavity 3/8’’ of larger on the exterior of a home they may utilize it as their new front door. Bats can be safely evicted by installing one way valves and utilizing proper exclusion methods.
For more information contact the wildlife professionals at Critter Evictors!