A systematization of glaze spalling in azulejos

Abstract

The detachment of the glaze in azulejos is the ultimate form of decay, since it leads to the loss of the pictorial content. The detachment is usually considered in a diffuse way, however a close observation allows recognizing several types, often related to crazing, which this paper proposes to systematize.

Keywords

• Azulejos
• Glazed tiles decay
• Detachment of glazes
• Crazing in glazed tiles