What material is often used in barriers to prevent termite entry?

Concrete is commonly used in barriers to prevent termite entry because of its durability and impenetrability. Termites are notorious for their ability to tunnel through various materials, but concrete creates a solid, robust barrier that they cannot easily penetrate. In addition to being effective at preventing termite access, concrete barriers can also help manage moisture levels around a structure, which is important since damp environments tend to attract termites.

While wood, plastic, and brick may have some applications in construction, they are not as effective in providing a barrier against termites. Wood is a primary food source for termites, making it counterproductive as a barrier material. Plastic, while sometimes used in specific instances for moisture control, does not provide the same level of structural integrity as concrete. Brick, although it contributes to a strong structure, can also offer potential spaces for termites to enter if not properly installed or maintained. Therefore, concrete stands out as the preferred choice for creating effective termite barriers.