Which one to choose?
It is the layer that protects it from atmospheric agents and gives a pinch of joy to our cities, with the various colors chosen.
Choosing the best type of plaster is not always easy but, on the market, you can find many different offers specifically designed for the most varied needs.
How it is done
Let’s now see how the finishing mortar for exteriors is made. Exterior plaster is made up of a mortar composed of different materials, where sand makes up approximately 50% of the mixture.
To these, a material that acts as a binder, lime, is added.
When talking about mortar for exteriors, the binding agent must also be able to protect the walls from atmospheric agents and at the same time allow the walls to breathe.
This way you avoid the formation of condensation and consequent mold.
How to choose the right plaster
To choose the right plaster for the exterior of a building you must take into consideration various characteristics and choose a particular composition of the mortar.
Let’s see the options:
? Mortar with hydraulic lime (clay) : with this mixture the plasters will be breathable and will guarantee perfect adhesion to the walls. It also offers good protection against temperature changes;
? Mortar with hydraulic lime (pozzolana): unlike the first one, pozzolan is added to this mixture. We are talking about a volcanic material that increases the resistance of the plaster to water and humidity. This solution is best for walls exposed to rainy or humid climates.
For further information about outdoor finishing mortar, visit our website where you will find many materials suitable for your needs.