why use it
The function of a breathable plaster finish is to finish, standardize but, above all, protect the surface of the walls.
Sometimes a simple plaster is not enough and for this reason the use of specific high-performance materials is required, as we will see in this article.
Why are specific plasters used?
Creating a breathable plaster finish serves to restore walls that are affected by capillary rising damp and the formation of efflorescence. The surfaces are restored by applying various products, with particular functions, which together form a specific restoration based on needs. The most used product is breathable or dehumidifying plaster.
To carry out quality work and guarantee an effective outcome of the intervention, it is important to also analyze the consistency of the wall structure, therefore materials already used, thicknesses, etc. as well as the quality and quantity of the salts present inside. Having all this information it is possible to choose the most suitable plaster for the job.
What is breathable plaster made of?
To create a breathable plaster finish, a hydraulic lime is used which acts as a binder inside the mortar. The lime is obtained from the cold mixing of excellent quality slaked lime which is obtained from the calcination of pure limestones and natural pozzolans of different specific surface areas and energy. The entire process is carried out at a very low temperature: 850/900°C.
The binder used, Pantheon Pozzolanic Lime, gives the mixture perfect adhesion to the surface, great breathability, resistance to alkaline aggression, resistance to the formation of mold and bacteria as well as significant elasticity.
Breathable plasters are microporous plasters based on lime and hydraulic binders, as we specified previously.
Being microporous, the breathable plaster finish guarantees high breathability and very low capillary absorption, i.e. it slows down the passage of moles of water whilst allowing steam to pass through with consequent control of salt crystallisation.