The clay-based plaster (free of silt and organic parts) is obtained from a natural ball clay sand, and sometimes chopped straw, has a high effect of humidity control is a breathable material and requires low energy consumption for its production. The clay has the ability to store heat and humidity. It quickly absorbs moisture from the air, the build up and then gives it back, thus adjusting the interior climate of course.
The application of clay-based plaster is very effective if heaters which are used as wall material is termoaccumulatore and controller.
With its ability to absorb moisture from the materials surrounding this type of plaster is able to contribute to the preservation of wood: its ability to accumulate moisture of the material makes it difficult to create mold and mildew inside the wood itself.
Being very sensitive to moisture, you should not use it outside of a building if not properly protected from the rain.
If the ground on which we will apply the plaster is not suitable you can use a reed mat, which is mechanically fastened to the wall, to allow for adequate adhesion.
The plaster can be applied by hand or machine. Sticky mat apply a thin layer of scratch coat of about 5mm, and as soon as it begins to harden you apply a second layer of about 10mm. With successive layers of 15mm thickness may total up to 50 mm of plaster.
For this type of plaster, because of its macroporous structure, it is preferable to use networks in plaster jute cloths, which should be included in the top quarter of the state of plaster.
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