What is the recommended treatment for a Plenum foundation?

The recommended treatment for a Plenum foundation is trench and treat. This method is effective for controlling moisture and preventing pests in a structure with a plenum foundation, which often has a space between the ground and the structural floor.

Utilizing trench and treat involves digging trenches around the foundation to apply chemical barriers that protect against termites and other pests, as well as managing moisture, which can be a significant concern in such foundations. This approach is beneficial because it addresses the unique challenges associated with the plenum design, where traditional methods might not effectively reach the areas that need treatment.

In contrast, other options such as pier and beam foundations are typically not applicable in this context. Injectable foams can be useful in some pest control scenarios but may not provide comprehensive coverage or moisture management necessary for plenum foundations. Chemical barriers can be used, but trench and treat is specifically recommended for its thorough approach in this type of structural configuration.