What is the primary route through which termite infestations occur?

The primary route through which termite infestations occur is through plumbing penetrations. Termites are attracted to moisture, which is often present in areas around plumbing fixtures, including pipes and drains. When there is any leak or moisture accumulation, it creates an ideal environment for termites to thrive.

Plumbing penetrations can provide direct access to the structure of a building, allowing termites to enter and create colonies in wood and other cellulose materials found within the walls, flooring, and even in furniture. The damp conditions around plumbing fixtures can make these areas particularly inviting for termites, thus facilitating their entry and infestations.

While foundation cracks can also provide access points for termites, they do not usually constitute the primary route since termites require moisture to survive, which is more likely found near plumbing systems. Air leaks and electrical wiring generally do not offer conducive environments for termites and are less frequently associated with infestations.