What kind of damage can raccoons cause to a building?

Raccoons are known for their destructive behavior, particularly when it comes to finding shelter and nesting sites. They often seek out dark, hidden spaces that provide security, which makes crawlspaces an attractive option. When raccoons burrow into or den in crawlspaces, they can cause significant structural damage to the building. Their activities may lead to the disruption of insulation, the tearing of materials, and potential harm to the foundation or supports. Additionally, when they establish a den, they can leave behind waste that can create sanitation issues and attract other pests.

The other options, while they do relate to potential damage by various wildlife, are not specifically characteristic of raccoons. Chewing through electrical wiring is more common with rodents, claw marks might indicate a variety of animals, and breaking windows is typically associated with larger animals or particular scenarios involving opportunistic access rather than raccoons specifically. Understanding the specific behaviors of raccoons helps highlight why burrowing and denning in crawlspaces is a primary concern.