Clay plaster has many specific advantages

Clay plaster, like lime plaster, is one of the oldest building materials for wall cladding. More and more often he is included in the considerations in the choice of materials. Above all, it has many health and ecological advantages over other finishes. Room air conditioning and reusability are two outstanding features.

Clay plaster is experiencing a renaissance

Among the materials for interior plaster Lehmputz experienced for several years, an increase in demand. The classic lime and lime cement plasters have long been the standard for new buildings and renovations. Greater attention to healthy living and increased environmental awareness has provided the upswing.

When it comes to the question of which interior plaster is the best, the advantages of loam plaster over lime plaster decide more and more frequently. Clay plaster has some properties that no other material has:


A clay plaster should be applied in a total layer thickness of twenty to thirty millimeters on a wall in order to play its properties optimally. The price can be calculated at five to ten euros per square meter.

humidity regulation

Diffusibility and moisture absorption give clay a regulating property, which can almost be described as surface air conditioning. The plaster binds so much humidity that, for example, in a bathroom, the mirrors do not fog during the shower.

pollutant binding

Clay absorbs odors and pollutants and binds them. With this property, he has in addition to the moisture regulation an additional air purification effect. Especially for allergy sufferers and in smoker households he "clears" the room air.

processing friendly

The material is not alkaline, as are lime and cement. The processing is possible without health risks and can also be implemented well for first-time users.

Easily repairable and reusable

A supposed disadvantage is the water solubility of clay plaster. In the outdoor area and in rooms with splash water, it is not suitable. The big advantage of this feature is that the clay plaster can be easily repaired. It just needs to be wetted and can be reshaped, improved and changed.

Universally applicable

Clay plaster as a very soft plaster copes with almost all surfaces and does not tend to flake or crack. It is made of wood and plasterboard as well as on concrete, stone and brickwork.

Tips & Tricks

The heat-storing effect makes a clay plaster for surface heating very interesting. Find out how ceiling and wall heaters can replace radiators.

Artikelbild: Tonio_75 / Shutterstock

Video Board: Advantages of single-leaf wall with clay blocks by Wienerberger