(A) Free salts in the mortar, combined with moisture, produced efflorescence and galvanic action of bare mill finish aluminum.
(B) Efflorescence caused by improper drainage and no waterproofing behind the retaining wall.
(C) An improper metal canopy tie-in directed moisture to the concrete lintel, causing efflorescence, spalling, and deterioration of attempted repairs.
(D) Efflorescence on shaded clay pavers over an unprotected base.
(E) Efflorescence mixed with traces of mildew on shaded concrete pavers caused by moisture migrating from the unprotected base.
(F) Moisture mixed with the salts in a clay pot planter that was kept in the shade and formed a heavy crust of efflorescence.
