What Moisture Barrier Means
A moisture barrier or vapor retarder helps control moisture vapor movement from a concrete slab, crawlspace, or other source into the flooring system.
Where It Is Commonly Used
It is used when required by the flooring manufacturer, substrate conditions, building assembly, or installation method.
Benefits
Proper moisture control can protect adhesives, locking joints, wood products, and finished flooring from avoidable moisture-related failure.
Important Considerations
A barrier is not a substitute for diagnosing active leaks, standing water, or excessive moisture. Testing and product compatibility determine the correct solution.