Plaster and limewash are two materials that are frequently used in building and design.

Crushed limestone, water, and natural pigments are used to make the paint known as “limewash.” It has been applied to buildings for centuries as a decorative and protective coating. Because limewash is permeable, moisture can escape from the wall’s surface and help prevent the growth of mould and mildew. 

Additionally, it has a distinctive matte finish that gives walls a velvety, soft appearance.

For covering walls and ceilings, plaster is a common building material. Gypsum, sand, and water are combined to make a paste that can be applied to a surface. 

To create a smooth, even surface for painting or wallpapering, plaster is frequently used. Additionally, it is used to make ornamental elements like cornices and ceiling roses.

Limewash and plaster can be combined in some instances to give interior and exterior walls a traditional finish. A smooth surface is first created on the wall by applying plaster, and then the limewash is used to give the wall its final finish. 

Traditional building design has used this combination of materials for centuries to produce a finish that is permeable, resilient, and aesthetically pleasing.

The reason why limewash and plaster are commonly used in interior and design are because:

1. Aesthetic appeal.

Limewash and plaster provide a unique, textured finish that can add character and warmth to a space. They are often used to create a rustic or vintage look that is popular in contemporary interior design. 

2. Durability.

Of course any in any house we would want to use materials that can actually makes it last longer. By using limewash and plaster could help with the issue. Limewash and plaster are also durable materials that can withstand wear and tear. They are less likely to crack or peel over time than some other types of paint or finishes.

3. Breathability 

Limewash and plaster are breathable materials, which allows moisture to evaporate from the surface. This can help prevent mold and mildew from growing on walls and ceilings, making them a good choice for humid environments.

If you want to design a house and thinking of what material you should use, you could take this limewash and plaster into consideration. 

Overall, limewash and plaster are good materials to use for construction and design projects because of their breathability, durability, versatility, aesthetic appeal, and sustainability.