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:

inexpensive

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

Clay plaster has many specific advantages

FAQ - 💬

❓ What is clay plaster?

👉 Clay plaster is a type of plaster that uses natural clay as the binding element —this is mixed with aggregates and natural fibre to create the plaster mixture.

❓ Is clay used for plaster?

👉 Clay plaster is a mixture of clay and sand that makes a beautiful, environmentally friendly alternative to conventional plaster and paint. It is natural, non-toxic, durable and beautiful. Unlike most paint, it does not contain VOC's (harmful chemicals that are released during and after application).

❓ Is plaster better than clay?

👉 It is harder and more impact-resistant than clay but that makes it more difficult to repair.

❓ What is the importance of plastering?

👉 During your home's construction, plastering makes the rough surfaces of the walls smooth. Plastering covers rough edges and uneven surfaces, thus increasing durability and strengthening walls. Plastering also gives a good finish to the walls of your house and this will make your home look appealing.

❓ How do you make clay plaster?

👉 Basic earth plaster is made by mixing clay, straw and sand together until they form a nice gooey stodge. It's much more satisfying, low impact (and inexpensive) to use your own dirt in the mixture.

❓ Can you paint clay plaster?

👉 Our clay plasters do not require painting, as the colour is inherent within the plaster. However, they can be painted with a suitable, micro-porous paint, such as clay paint or limewash if desired.

❓ Can clay plaster be used outside?

👉 Clayworks Clay Plasters are for internal spaces. Clayworks clay plasters do not chemically set and will therefore not withstand exposure to large amounts of liquid moisture (i.e. rain or showers). We do not recommend application as an external wall finish.

❓ What are the three types of plaster?

👉 Types of Plaster based on Material Used

  • Lime Plaster.
  • Cement Plaster.
  • Gypsum Plaster.

❓ What is the advantage of plaster over drywall?

👉 If properly mixed and applied, a plaster coating creates a stronger and more durable wall finish than drywall. The walls become stronger due to the chemical reaction that takes place when water escapes the plaster mixture. Plaster is more resistant to knocks and dents in most cases.

❓ What is clay wall?

👉 Clay finishes are a healthy, breathable alternative to paints or wallpaper on internal walls and ceilings. Naturally pigmented and free of toxic ingredients, they are made of natural materials, do not require painting and are compostable. Clayworks' plaster finishes are manufactured in Cornwall, England.

❓ Are plaster walls healthy?

👉 It repels dust rather than attracting it and is resistant to mold and mildew, which makes interior air quality healthier in general and specifically for people with allergies. Plaster is better for the environment because it requires minimal energy to produce and contains a large percentage of recycled materials.

❓ What are the disadvantages of using clay plaster?

👉 The only real drawback of using clay plaster is that it's a specialist product, so may benefit from application by someone with experience using it.

❓ How much does it cost to plaster a wall with clay?

👉 Clay plasters will also cost more than traditional wall plasters, but bear in mind you won't necessarily need to spend out on expensive paint finishes for a clay plaster wall, which may help to balance the budget. With a good quality plaster costing around £7 to £10 per 25kg bag, you can expect clay plasters to start from around £15 per 25kg bag .

❓ What should you consider when choosing clay plaster?

👉 You also need to consider what material you're applying clay plaster to, as it's not suitable for all applications. Clay plasters can be applied onto most substrates including gypsum board, but they're not suitable for applying directly onto wood or metal. What are the Benefits of Clay Plaster?

❓ What is natural clay plaster?

👉 Natural clay plaster uses non-fired clay, which is an abundant natural resource. Unlike other types of plaster, it does not contain any resins or other chemical components that require a great amount of energy to be produced. However, it is important to source it locally to reduce emissions from transportation.


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