Its simple to tell if a hole in your roof was chewed by a squirrel if you know what to look for. Squirrels have distinct gnawing habits, and their marks are quite different from other types of damage created by nature or wildlife.

Inspect the hole closely for chew marks that appear as clean, sharp edges. Squirrel gnawing typically results in jagged, irregular openings in materials like wood or siding. Their teeth leave behind noticeable teeth marks and wood shavings.

Squirrel chew marks are often accompanied by a series of scratch-like grooves surrounding the hole, indicating their attempts to gain access or enlarge the opening.

You may also find droppings or signs of nesting near the damaged area, as squirrels often establish nests in attics or other parts of your home through these holes.