Exterior drainage refers to systems designed to manage and redirect water away from buildings and landscapes. This is crucial for preventing water accumulation, which can lead to structural damage, erosion, and flooding. Common components of exterior drainage include drainage ditches, French drains, and downspouts that channel rainwater away from foundations. Proper exterior drainage helps maintain the integrity of a property by ensuring that excess water does not pool around the foundation. It also protects landscaping by preventing soil erosion and promoting healthy plant growth. Regular maintenance of these systems is essential for their effectiveness in managing water flow.