If constructing a new home, or trying to protect an existing home against infestation, one thing some homeowners do is install physical termite barriers.
Subterranean termites are the most common type of termite infestation. Subterranean termites build their colonies within soil beneath or around a structure, and emerge to feed on wood and other cellulose material. Physical termite barriers may be used to help prevent such infestations.
Termite barriers traditionally come in two forms. They can be a barrier of chemically treated soil; these are often called chemical barriers. Or, they can be a physical termite barrier, which is usually a layer of protection between the soil and the home. These are typically made out of stainless steel mesh, and other materials designed to make it difficult for termites to access the home. For protection from termites in the soil, a common system includes both a concrete slab underneath the house and a physical termite barrier.
Physical termite barriers are designed to protect the foundation of a structure. While nonchemically-treated physical termite barriers will not kill termites in the soil near your home, they should inhibit termites from gaining access to your home. However, physical termite barriers are often not 100 percent effective, as termites can breach these preventative systems. Contact your local pest control professional to discuss termite prevention methods.