What are the main sources of moisture in a building?

The primary sources of moisture in a building include indoor activities, leaks, condensation, and external environmental factors.

Indoor activities contribute significantly to moisture levels; for example, cooking, bathing, and even breathing release water vapor into the air. Additionally, leaks from plumbing systems or roofs can introduce unwanted water, promoting moisture accumulation. Condensation often forms when warm, humid air comes into contact with cooler surfaces, leading to water droplets that can cause damage or mold growth if not properly managed. External environmental factors, such as rain and humidity, can also increase moisture levels inside the building.

Understanding these sources is crucial for effective moisture control, as managing them helps prevent issues like mold growth, structural damage, and indoor air quality problems.