rappauksiin

Rappauksiin is the illative plural form of the Finnish noun rappaus, which denotes plastering as a building technique. In everyday Finnish usage, rappauksiin appears in phrases referring to plastering works or to movement toward or into plastering projects, such as when planning or describing multiple plastering tasks.

Rappaus, or plastering, is a method of coating walls and ceilings with a plaster material to create a smooth or textured surface, provide protection, and improve fire resistance and acoustics. It has a long history in many cultures. Traditionally lime-based plasters were common, but modern practice often uses cement-lime, gypsum, or polymer-modified plasters. Plaster can be applied over substrates such as brick, stone, concrete, or wood lath, and is used for interior finishing as well as exterior rendering.

Techniques typically involve base coats and finish coats. A common sequence is a scratch or brown coat followed by a finish coat. Plaster is applied with tools such as trowels and hawks and pressed onto the substrate with a darby or float to achieve the desired thickness and texture. Substrates should be prepared, moistened, and primed; exterior work may require weather protection, substrate stabilization, and compatible waterproofing measures.

Materials include lime plaster, cement plaster, and gypsum plaster, each with different working times, hardness, and breathability. Finishes range from smooth to textured and can include decorative plasterwork such as mouldings or stucco effects. Exterior plasters often serve as weather protection and aesthetic finish, sometimes combined with insulation systems.

Maintenance involves repairing cracks or detached areas, re-plastering damaged sections, and ensuring moisture is controlled to prevent deterioration. Proper curing, dust control, and safety measures are important during application and handling.