What happens to buildings without effective drainage planes?

Buildings without effective drainage planes are more prone to water-related problems because proper drainage is crucial for the management of moisture within and around a structure. Drainage planes function by directing water away from walls, foundations, and other critical components of a building. Without these systems in place, water can accumulate, leading to issues such as mold growth, wood rot, and corrosion of materials.

When moisture is not adequately managed, it can seep into walls and foundations, which can compromise the structural integrity of the building. Additionally, standing water can create conditions that promote the growth of harmful microorganisms, impacting indoor air quality. Therefore, not having an effective drainage plane increases the likelihood of costly repairs and health concerns, highlighting the significance of proper drainage design in maintaining a building's health and longevity.

The other options do not align with the realities of building maintenance and safety in the absence of drainage systems. Buildings with poor drainage would not experience a longer lifespan, and they would likely be more challenging to maintain due to ongoing repairs and issues arising from water damage. Furthermore, insurance premiums would typically be higher due to the increased risk associated with potential water-related damage.