What will happen if impermeable material is not used in the construction of the foundation?

When impermeable material is not used in the construction of the foundation, moisture will flow into the foundation. Foundations are crucial components of a structure, as they provide stability and support. If the foundation is constructed with materials that allow water to penetrate, moisture from the ground can seep in, leading to a number of potential issues such as mold growth, wood rot, and a weakened foundation structure. This moisture intrusion can compromise the integrity of the foundation and lead to costly repairs in the future. Therefore, using impermeable materials is essential to prevent water from infiltrating the foundation and to maintain a dry and stable environment for the structure.