The façade has two main functions: 1. aesthetic, as it is the first thing you see, and 2. to protect both the walls and the structure of the building.
Depending on the finish of the facade, it can be more or less affected by inclement weather. For example, with a porous finish, it is easier for rainwater to penetrate inside and deteriorate it, stain it or produce fungus. All this damages the aesthetic. It can also accelerate structural deterioration processes such as the oxidation of the reinforcement.
Apart from weather agents, possible differential settlements or incompatibilities between different materials used in construction can generate cracks and fissures in the façade. These cracks do not have to endanger the structural state of the building, but they do generate discontinuity in the enclosure and worsen the insulation creating thermal bridges.
When our building has cracks of this type, the best solution is to staple the wall and apply an impermeable anti-cracking coating.
In Intercons we have a great experience in this type of rehabilitation. We are official installers of the weber anti-cracking systems for facades. These systems allow a thin coating, apply a reinforced coating. The armor of this coating absorbs the movements to which it may be subjected to prevent it from re-fissuring (which is why it is called anti-cracking system). The mortar that is used has a dye (to be chosen by the client) so it is not necessary to paint it, thus improving its durability. It is a breathable material, which prevents condensation inside the facade. It can also be photocatalytic, which means that they neutralize environmental pollution by preventing its accumulation and contributing to its tidiness.
This coating also allows to add between the facade and the mortar a thermal insulation of several thicknesses to improve the energy efficiency of the building taking advantage of the intervention.