Ashlar plaster

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The Vienna Palais Hoyos-Sprinzenstein with ashlar plaster on the lower two floors.

Block plaster is created when plaster joints (also called plaster grooves or simply grooves ) are cut into the plaster before it has completely hardened by means of appropriately shaped joint irons, more or less richly profiled, imitating the structure of ashlar blocks . To this can be added the imitation of an edge stroke and a crowned head of the cuboid. The plaster grooves can be semicircular or triangular or square (trapezoidal).

Ashlar plaster is preferably applied to facades in front of the lower floors of buildings.

Plaster grooves can also be used individually; as a removing plaster structure, they represent the opposite of the plastering tape .