Coating with high flexibility and resistance to micro stresses in structures.

The thermal shocks to which building facades are subjected induce thermal expansion in different building materials. Different for each type of material, cracks and fissures occur that promote degradation phenomena (detachment of paint, de cohesion of the substrate, etc.). In particular, the thermal stimulations to which the materials are subjected and their different molecular composition lead to the 'occurrence of micro cracks of different nature caused by a sudden climate change. In a winter period our facades are exposed to sudden cycles of cooling during the night and, heating during the day with consequent condensation phenomena. In a summer period on the other hand typical case of thermal shock our wall and strongly heated by the sun and undergoes a rapid rise in temperature reaching in some cases even temperatures of 50/60 °.

We are often mistaken by considering cracking as an "aesthetic" problem, infrequent and easily solved; in reality, a great many facades are affected, with both aesthetic and durability, maintenance, and building health problems.

All deterioration processes depend on the instability of the air-water-manufactured system, that is, on the amount and rate at which materials exchange water with the environment, based on their specific characteristics of porosity and hygroscopicity. The temperature of both air and water varies constantly throughout the day and even more so over the course of a year. In turn, the amount of H2O vapor in the air varies not only as a result of changes in indoor temperature and condensation phenomena, but especially in relation to outdoor climatic actions, with continuous exchanges of more or less humid and warm air from outside to inside and vice versa.

A determining factor that creates micro-cracking and cracking in general on structures is the constraints on the deformation of the materials used. In fact, if shrinkage is free, i.e., occurs in a sufficiently elastic connection to a structure capable of free movement, it does not generate self-injury and consequently neither does cracking. The opposite is the case if shrinkage is resisted, for example, by the presence of reinforcement.

To prevent these stresses, one should retard shrinkage as much as possible by protecting the facades by providing special reinforcement that can absorb shrinkage-induced stresses, or use systems with lower elastic modulus

The 'plaster's function is to cover, protect and finish the underlying masonry work. As such it must be able to adapt, without cracking, to the small movements of the substrate on which it is placed, that is, it must possess sufficient elasticity.

The parameter characterizing this property is Young's modulus of normal elasticity (E), which has the following average values for various types of plasters:

From the E =900 Kg/mm cementitious plaster to the E = 150 Kg/mm of an air lime or gypsum plaster. Since a material's ability to deform is inversely proportional to Young's modulus, it is evident that a low modulus provides the greatest guarantees against cracking due to normal settlement and expansion of structures.

The elastic modulus of Nobilium thermalpanel is, E = 136 Kg/mm.

Nobilium Thermalpanel's noble basalt fiber, known as "the green industrial material, " is not a new material but its applications are certainly innovative in many construction and industrial sectors .

Raw material contained in silos is crushed, washed and conveyed by conveyor belts inside furnaces at a temperature of 1450-1500°C. The molten basalt, due to hydrostatic pressure, flows through an extrusion bushing to make a long wire. This allows us to achieve a needling process. Long wire that is stitched thus eliminating high contents of thermosetting resins found in other materials.

The technical characteristics of Nobilium Thermalpanel thermal insulation panel for outdoor application are the direct consequence of its specificity: the panels are composed of selected 100% natural mineral fibers, high breathability, totally non-combustible, 100% recyclable, very high density with thickness of 3 and 9 millimeters, density of 180 Kg/m, has a thermal conductivity of 0.032 W/mK and is self-supporting.