How does moisture affect building performance?

Moisture significantly impacts building performance mainly by leading to mold growth and structural damage. When moisture is present in a building, it creates an environment conducive to mold, which can thrive on organic materials commonly found in construction, such as wood, drywall, and fabric. This not only poses health risks to occupants but also leads to the degradation of building materials over time.

Additionally, excessive moisture can compromise the structural integrity of a building. For instance, wood can rot when it absorbs moisture, and metal components might rust, leading to failures in structural support. Therefore, managing moisture is crucial to ensure both the health of the occupants and the durability of the building itself.

The other options do not accurately reflect the widespread negative effects moisture can have on buildings. It's important to understand that moisture management is a critical issue in building performance, making this understanding essential for effective building analysis and improvement practices.