Adobe

Adobe is a natural building material composed of sand, sandy clay and straw or other organic materials, which is shaped into bricks using wooden frames and dried in the sun. It is similar to cob and mudbrick. Adobe structures are extremely durable and account for the oldest extant buildings on the planet. Adobe buildings also offer significant advantages in hot, dry climates; they remain cooler as adobe stores and releases heat very slowly.

Buildings made of sun-dried earth are common in the Middle East, North Africa, and in Spain (usually in the Mudéjar style), but adobe had been in use by indigenous peoples of the Americas in the Southwestern United States, Mesoamerica, and the Andean region of South America for several thousand years, although often substantial amounts of stone are used in the walls of Pueblo buildings. This method of brickmaking was imported to Spain in the 16th century by Spaniards who had traveled to Mexico and Peru.

A distinction is sometimes made between the smaller adobes, which are about the size of ordinary baked bricks, and the larger adobines, some of which are as much as from one to two yards long.

The word Adobe ( or ) has come down to us over some 4000 years with astonishingly little change in either pronunciation or meaning: the word can be traced from the Middle Egyptian (c. 2000 BC) word dj-b-t "mud brick." As Middle Egyptian evolved into Late Egyptian, Demotic, and finally Coptic (c. 600 BC), dj-b-t became tobe " brick." This in turn evolved into Arabic at-tub (al "the" + tub "brick") " brick," which was assimilated into Old Spanish as adobe , still with the meaning "mud brick." English borrowed the word from Spanish in the early 18th century.

In more modern usage, the term "adobe" has come to mean a style of architecture that is popular in the desert climates of North America, especially in New Mexico. (Compare with stucco).