How can a drainage plane improve a building's structure?

A drainage plane plays a crucial role in a building's structure by preventing potential water damage. This is achieved by directing water away from the building envelope, which helps to keep the interior dry and minimizes the risk of issues such as mold, mildew, and structural damage caused by water infiltration. By effectively managing water flow, a drainage plane protects the integrity of materials used in construction and maintains the building's overall durability.

In contrast, while enhancing visual aesthetics and increasing the height of landscaping may have their benefits, they do not directly relate to the primary function of a drainage plane. Similarly, while energy savings can be a result of various building techniques and materials, they are not a direct function of a drainage plane. The key role of a drainage plane is centered firmly on water management and prevention of moisture-related problems, making it a vital component for building health.