What is the purpose of creating a vertical treatment around a building's perimeter?

The primary purpose of creating a vertical treatment around a building's perimeter is to establish a continuous chemical barrier. This barrier is crucial in preventing termites and other pests from gaining access to the structure. This treatment involves applying a termiticide in a manner that ensures a consistent and uninterrupted line of defense against subterranean termites, which often enter structures from the soil.

A continuous chemical barrier serves to protect the foundation and lower parts of the building, effectively limiting the chances of termite infestation. By creating this barrier, any termite attempting to tunnel through the treated soil will encounter the termiticide, thus reducing the likelihood of them reaching the wooden structures and materials within the building. This method is a proactive approach to pest control, ensuring that potential infestations are deterred before they can cause damage.

While reducing moisture levels and repelling pests may contribute to an overall pest management program, these measures do not specifically address the direct method of preventing termites from accessing a building's framework. Similarly, while traps can be a part of a broader strategy, their function is different from the primary objective of creating a protective barrier.