Efflorescence and Subflorescence (Tile & Stone)

Floor Detective® Claims and Conditions Guide

Summary

Efflorescence and subflorescence occur when soluble salts within tile or stone assemblies are transported by moisture and crystallize as water evaporates. Efflorescence refers to visible salt deposits forming on the surface of grout joints, tile edges, or porous tile and stone materials. Subflorescence occurs when salt crystallization develops beneath the surface within pores or voids of the material. These conditions originate from moisture movement within the tile assembly rather than defects in the tile itself. Evaluation therefore focuses on identifying moisture pathways, salt sources, and

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