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Identifying the specific animal running on your roof at night can be challenging without direct observation. Common nocturnal roof visitors include raccoons, squirrels, opossums, and rats. Raccoons are bigger and can create heavy thumping sounds. Squirrels are agile and may produce rapid scurrying noises. Opossums tend to move stealthily with less noise. Rats can make scratching or gnawing sounds. To determine the culprit, look for signs like footprints, droppings, or damaged areas near the roof. For accurate identification, consult a pest control professional or set up wildlife cameras near potential entry points.

Roof rats can carry a variety of pathogens and parasites, including salmonellosis (food contamination), leptospirosis, trichinosis, rat-bite fever, murine typhus, plague, and toxoplasmosis. Diseases can be spread via urine, droppings, or saliva. To prevent transmission, it’s essential to promptly address a roof rat infestation and avoid direct contact with the animals where possible.

Termites are most active and cause the most damage during the spring and summer, as warm temperatures and increased moisture accelerate their activity. This is also when swarming typically occurs, allowing colonies to expand. However, termites remain active year-round, especially in warmer climates or heated homes. Once a colony is established, it can continue to damage wood 365 days a year, even during cold weather.

When woodpeckers start banging on your walls or roof, they are probably looking for insects to eat, storing nuts for winter, drilling a hole to make a nest, or communicating with other birds to establish territory or find a mate.

The size of the hole can help determine the reason for the pecking. Small irregular holes are a result of insect hunts. Acorn holes are more consistently sized and often fitted with a nut in the middle. Nest holes are large and have rounded edges. If the bird is pecking to mark its territory or attract a mate, it may leave dents rather than holes, and the noise will stop when the mating season starts in spring.