Bar them from entering with hardware cloth.
Animal ate thru attic vent screen.
Even larger rodents such as squirrels can fit through surprisingly small gaps.
The 4 main animals that can easily rip up ridge vents are squirrels like in this case raccoons very easily bats and mice.
As agile climbers opossums can easily make their way into an attic through slits and holes in the eaves and vents.
But squirrels sometimes chew through vent covers.
Most animals enter attics through small holes or man made openings such as vents and chimney pipes.
Larger animals will even bite and claw through weak spots in the exterior to create an entrance to the attic.
Ridge guard is a system for guarding against animal entry at the roof ridge.
The louvered vents for dryer exhausts and the openings behind roof fascia are perennial favorites.
These animal contortionists can easily fit through any unprotected ventilation holes in your roof eaves.
I just knew it would bug me seeing the screening over this gable since it s so low and visible over the garage.
We install heavy gauge wire screening over top of roof vents covers that will keep animals out and won t prevent air flow.
Take down the bird feeders that are attracting them to your property.
Living in ne chicago i had squirrels invading the attic and destroying garden produce one bite and dropped on the ground.
If wildlife is living inside your attic and coming and going through your roof vents we will not only remove them but also repair the damage and prevent future re entry.
With the advent of ridge vents to protect shingles from over heating in the summer and excess moisture build up in the attic in the winter due to heat loss came the extra issues associated with a large vent opening across the entire ridge of the home.
Here you can see the cover of an attic fan round and a passive vent next to it box like.
Although many homeowners are not even aware that such holes exist they are essential for attic ventilation so you can t just cover them with wood.
As an example take a look at this recent picture of a squirrel problem.
I sealed the attic and live trapped for over a year 30 squirrels and released them in a forest preserve 12 mi.
A word of caution on live trapping squirrels to remove nuisance.
As mentioned all the gable vents have screening on the inside so it s unlikely anything would try to get into the attic anyway.
The masked marauders of the animal world they ll barge down chimneys and into open garages or attic vents.
Thanks to its repulsive smell and the size of its droppings the opossum is responsible for some of the stinkiest infestations of any north american animal short of a skunk.
The only attic gable vent i didn t have screened on the outside was the one over the garage.