BAT INFESTATIONS, EXCLUSION & PROOFING:
In most circumstances bats enter your home through a point of entry at the roof level. If you can squeeze your pinky finger into a hole or gap, bats can get through it.They can find their way into your living space a number of ways, either through an air flow path or simply by falling into wall voids. It's not uncommon for a bat that has fallen down a wall void to end up in an unfinished part of a basement or furnace room.
In late summer (July, August,September) young bats that are not experienced fliers, tend to fall down inside the walls leading to the basement. This is because they weren’t able to navigate the flight from inside the attic to the exit hole leading outside.
Numerous bats living in an attic or in the walls of a home cause odour and noise problems. Their accumulated droppings, called guano can raise many health concerns. Bat exclusion and proofing become essential.
Bat exclusion involves sealing all possible points of entry that would allow a bat to invade your home. These areas include but are not limited to chimneys, roof vents, exterior perimeter where roof meets fascia, and wall soffit gaps to name a few.
One way bat doors are installed to allow the bat colony to exit the structure but prevents re-entry.