Kalkkimaalausta

Kalkkimaalausta, known in English as limewash or whitewash, is a traditional finishing technique for walls and ceilings. It involves applying a thin coating of slaked lime mixed with water. The lime reacts with carbon dioxide in the air to form calcium carbonate, a durable and breathable coating.

Historically, limewash was widely used due to its affordability and availability of materials. It was common in both domestic and public buildings, especially in rural areas and for agricultural structures. Its natural antimicrobial properties also made it a hygienic choice for interiors.

The application of limewash typically involves multiple thin coats. Each coat is allowed to dry before the next is applied. The resulting finish is matte and has a characteristic soft, chalky appearance. Over time, limewash can develop a patina and is known to age gracefully.

Modern applications of limewash are often found in historical restoration projects where authenticity is desired. It is also embraced by those seeking natural and eco-friendly building materials. While simple in composition, achieving a uniform and aesthetically pleasing finish with limewash can require specific techniques and understanding of its properties. It is particularly well-suited for porous surfaces like plaster, stone, and brick.