What kind of barriers can be installed during construction to prevent termites?

Physical barriers, such as steel mesh or sand barriers, are specifically designed to prevent termites from entering a structure. These barriers create a physical obstruction that termites cannot easily navigate, effectively reducing the chance of infestation. For example, steel mesh can be installed around the foundation or walls of a building. The mesh prevents termites, which typically require soil contact for tunneling, from gaining access to the structure.

In the case of sand barriers, the grain size and composition are important; a certain size and density of sand can deter termites from burrowing through. These physical barriers are particularly beneficial as they require no ongoing maintenance or retreatment, unlike some chemical options that may degrade over time.

Furthermore, while chemical barriers can be effective, they involve the use of pesticides applied to the soil or other areas around the building, which may not provide the enduring protection that physical barriers can. Moisture barriers are meant to control humidity and are more focused on mold prevention and water intrusion. Pest repellent barriers, while they may deter some pests, are typically less effective against termites specifically. Therefore, utilizing physical barriers during construction is one of the most reliable methods to prevent termite access.