What can excessive moisture in a building lead to?

Excessive moisture in a building creates an environment conducive to mold growth and can lead to significant structural damage. When moisture levels are high, it can promote the proliferation of mold spores, which not only poses health risks to occupants but can also damage building materials such as wood, drywall, and insulation. Mold can weaken structural integrity over time, as it breaks down the components of a building and leads to deterioration. Additionally, constant exposure to moisture can cause wood to warp, rot, and compromise the overall stability of the structure. Therefore, the presence of excessive moisture directly correlates with these negative outcomes, affirming that the answer is indeed focused on mold growth and structural damage.