Where do you start plastering an external wall? Do you have to prepare the plaster yourself or is it better to use a specific ready-made product? The temptation to redo the plaster on your own comes, but is often held back by doubts and questions. In fact, for those who are already familiar with masonry jobs , it is not difficult to learn how to plaster an external wall. Just get a pre-mixed plaster for exterior wall, therefore easier to lay, and white. The colored one is in fact used to decorate the walls with different techniques. Then, with tools in hand, you can start.
Choose exterior plaster
To plaster an exterior wall you first need the appropriate exterior plaster . It is a specific compound that protects walls from water and humidity, but at the same time is highly breathable. Exterior plaster can usually be of three types. Lime-based plaster mixed with cement is the best for having the best protection from rain and hail . Then there is the lime and pozzolan-based plaster which is perfect for resisting humidity . Finally, you can choose the lime and clay-based plaster, more suitable for ensuring protection from sudden changes in temperature .
Plaster a wall with the thickness guides
Once you have chosen the exterior plaster best suited to the climatic characteristics of the area in which the building is located, proceed with the preparation of the wall which must be well cleaned. The work is not done freehand, That’s why you work in small areas at a time. The walls must in fact be crossed vertically, from the ground to the ceiling, by strips of plaster between 10 and 15 centimeters wide, at a distance of one meter from each other. They must be smooth and perfectly plumb because they will serve as a base on which to rest the staffor aluminum straight edge. As an alternative to the bands you can use wooden strips always with the same thickness reference function.