Plastering is a finishing technique used to create smooth and even surfaces on walls and ceilings. Before application, the surface is cleaned, and a primer is applied if necessary to improve adhesion. The first layer, known as rough plaster, is applied, followed by a fine plaster coat to achieve a completely smooth finish. Once the plaster has dried, sanding is performed to prepare the surface for painting. Plastering not only enhances aesthetics but also provides insulation benefits, making it an essential process for improving indoor quality in buildings.