When inspecting a wooden structure for carpenter ant colonies, which locations are critical to inspect?

In the context of inspecting for carpenter ant colonies, focusing on areas where wood is in contact with soil, in crawl spaces, and under concrete slabs is crucial. Carpenter ants are attracted to damp or decaying wood, and these areas are often conducive to moisture accumulation, which can lead to wood rot. Such environments provide ideal nesting sites for carpenter ants, as they allow the ants to thrive and establish colonies.

Inspecting crawl spaces is essential because this area often has inadequate ventilation, which can create a humid environment that attracts carpenter ants. Similarly, checking locations under concrete slabs is important because if there are any plumbing leaks or moisture build-up, it can lead to the deterioration of wood that is in contact with the soil, making it a prime target for these pests.

While inspecting near windows and doors or under carpets can be part of a thorough inspection for various pests, these locations are not specific to carpenter ants. The attic might also provide shelter, but it is not the primary area where carpenter ants are likely to establish their colonies compared to the critical areas identified in the correct answer.