Efflorescence refers to what phenomenon?

Efflorescence is a phenomenon that occurs when water evaporates from a surface, leaving behind soluble salts that can form a white, powdery substance. This typically happens in porous materials such as tile grout, where moisture rises to the surface. When the water evaporates, the salts become concentrated at the surface, creating a visible deposit. This process can result from various sources of moisture, including groundwater, rain, or even excessive humidity.

Understanding this process is important for floor covering contractors because it can affect the aesthetics and integrity of the tiled surface. Proper installation and sealing techniques can help mitigate the occurrence of efflorescence, ensuring that the flooring remains attractive and functional over time. Recognizing this phenomenon is crucial for maintenance and prevention strategies in flooring installations.