Bat skin secretes an oil that rubs off on the walls of your attic leaving a tell tale sign that you have unwanted guests.
How do you know if you have bats in your attic.
Bats usually leave their droppings in apparently designated areas so it s almost impossible not to see it.
If you hear chirping bat sounds from the attic or very close to the home at night or before dawn you may very well be hearing bats.
Bat guano has a very strong noxious smell like ammonia and might be found on the porch decks or window sills as well as the attic.
Here are the top signs that bats have infested your attic.
Bats are nocturnal animals which mean that they sleep during the day and will only come out at night.
If you have bats in your attic you re definitely going to find piles of bat dropping scattered across your attic insulation.
Your attic has a strong smell of ammonia which is caused by excrement.
Guano droppings produces an almost toxic odour that s similar to ammonia and a definite sign bats are somewhere near.
Hearing small squeaking noises or scratching.
Check for dark brown stains around your roofline dormers vents and roof trim.
Seeing live or dead bats.
You see piles of black droppings on your attic insulation.
Like most of the signs above guano around the home isn t necessarily a sign but if you see it in your attic then you know you need to call someone.