What is the primary purpose of vertical foundation moisture barriers?

The primary purpose of vertical foundation moisture barriers is to prevent water intrusion from the ground. These barriers are essential in protecting the structural integrity of buildings by blocking moisture that can seep into foundations and basements. Water intrusion can lead to a host of problems, including mold growth, deterioration of materials, and structural damage over time. Moisture barriers work by creating a barrier between the foundation and the surrounding soil, minimizing the risk of water infiltration.

While other options such as supporting structural load or enhancing soil density may be relevant in the context of foundation design, they do not directly address the function of moisture barriers. Similarly, landscaping considerations, while important for overall property aesthetics, do not pertain to the fundamental role of vertical moisture barriers in foundation protection.