Which of the following is NOT a moisture source?

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Multiple Choice

Which of the following is NOT a moisture source?

Explanation:
Moisture sources are inputs that bring water into the building or its envelope. Bulk water is water that infiltrates from rain or leaks, incoming air can carry humidity from outside, and earth provides soil moisture that can migrate into the foundation. Condensation is a process where water vapor turns into liquid on a cooler surface; it doesn’t itself add new moisture to the system—it uses moisture already present in the air. Because condensation is a mechanism of moisture redistribution rather than a source that introduces water, it’s not considered a moisture source.

Moisture sources are inputs that bring water into the building or its envelope. Bulk water is water that infiltrates from rain or leaks, incoming air can carry humidity from outside, and earth provides soil moisture that can migrate into the foundation. Condensation is a process where water vapor turns into liquid on a cooler surface; it doesn’t itself add new moisture to the system—it uses moisture already present in the air. Because condensation is a mechanism of moisture redistribution rather than a source that introduces water, it’s not considered a moisture source.

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