Orosi sāzi

Orosi is a typical architectural element of Iran. It is a reticular window. No nail or glue is used in this type of art: all the images and figures are obtained by connecting small wooden joints, operated with the tongue and groove joint. The Orosi generally have a rectangular shape; the upper part (located under the roof), decorated with pieces of colored glass, was usually completed in a rectangular, half-moon or barrel shape. This type of door or window, widely used in tropical areas, was intended to regulate and mitigate sunlight in those particularly exposed houses. However, the use of this art was more or less widespread also in other areas, sometimes joined by the Āyneh kāri.
Some wonderful examples of this art are the ancient houses of Esfahān, Kāshān, Shirāz and Yazd. In Tehrān more new types of Orosi can be found.
Nowadays, it is the city of Sanandaj that holds the primacy of this art in the western part of the country.

Function of the reticular surface of the Orosi windows:
1. Guarantee the light of the interior space;
2. Allow the view of the outer space;
3. Reducing the power of radiation and the heat of the sun;
4. Give beauty to the building's facade;
5. Protect the intimacy of private spaces;
6. Remove annoying insects (colored glasses, giving life to colorful lights, repel and repel insects).