A pre-mixed plaster has a general weight of 16 Kg/m² per 1 cm of thickness, so there are 40 Kg/m² for each side.

The EMMEDUE partition wall (PSTE) is completed on site with a thickness of 2.5 cm of traditional or pre-mixed cement plaster on both sides. The pre-mixed mixtures that are most used and most efficient are those which have a percentage of limestone less than 10% so that they do not affect galvanized steel nets.

A sandwich structure is intended to be an element composed of two layers whose thickness is reduced, but which are very resistant, called skins or faces, separated by a connective material, which is called core. Usually the core is a light material, less resistant than the material of the faces. The axial rigidity of the core is completely negligible compared to the material of the skins, which are predisposed for loads on the plane. Instead, the presence of the core is useful for increasing the value of the flexural rigidity of the panel, which depends on the distance of the faces from the medial plane.
EMMEDUE PANELS can be placed in this context.

The EMMEDUE building system is based on a basic element composed of a panel made of two nets of electro-welded zinc-coated steel, placed adjacent to the faces of a central wave-shaped polystyrene plate. The nets are continuously and automatically realized by machinery. The standard nets are square mesh with wires whose diameter is 2.5 mm, placed at a distance of 7 cm. In any case it is always possible to vary diameters and distances, even within the same net. The two nets are held together by a constant amount of metallic connectors per m². Such panels can be used singularly (PSME o PSTE) or, if properly shaped and connected to each other by the connectors, they can be assembled in couples obtaining the double panel (PDME). Moreover the EMMEDUE system uses the same productive modality, with a different shape of polystyrene, for the realization of floor panels with hollow flooring blocks (PSSGE).
In any case the density of the polystyrene, as well as their thickness, can be adjusted.
Finally, all types of panels are completed on site.

Commonly known as foam, polystyrene is rightly listed among the materials that are used the most in the construction industry for its versatility and for its particular technical performances.
Characteristics:
The luck – and spread – that polystyrene has had in the construction industry is the result of a particularly efficacious mix of performances that makes it suitable for a wide range of uses in different forms.
1. Fire resistance
Among the strong points of polystyrene with which the EMMEDUE panels are manufactured is the self-extinguishing capacity, which makes it suitable to be used in all those cases where aspects such as the inflammability of the material must be – or is decided to be – kept under control.
2. Thermal insulation
The material has a reduced thermal conductivity. This is thanks to its closed cellular structure, 98% of which is air, a characteristic which gives it a great efficacy as a thermal insulator. The thermal properties, moreover, remain unchanged over time.
3. Humidity resistance
The EPS is permeable to water vapor, and so it is transpires, but it is waterproof. The permeability to vapor makes it possible to avoid the formation of molds inside buildings and environments isolated with EPS. The water does not melt the EPS nor does it pass through the walls of the closed cells. Capillary absorption is practically inexistent.
4. Duration
The analyses performed show that the EPS does not have any problem of duration during the effective life of the buildings.
5. Safety and environmental sustainabilityThe durability of the material is in direct relation with its safety of use. The EPS does not contain nutritive substances able to sustain the growth of fungi, bacteria or other microorganisms, and so it does not rot or mold. It is non-toxic, inert, does not contain chlorofluorocarbons (CFC) or hydrofluorocarbons (FCFC).  For its chemical and biological stability, the EPS does not constitute a danger for environmental hygiene nor for the water-bearing strata. The EPS used in construction insulation does not represent a health risk since it does not release toxic gases.

The single EMMEDUE panel (partition wall) (PSTE) is completed when it is put in place with 2.5 cm-thick traditional or pre-mixed cement plaster on both sides.
The single EMMEDUE bearing panel (PSME) is completed when it is put in place by applying on each side a 3.5 cm-thick layer of spritz-beton (water, cement and sand) whose characteristic resistance is at least 250 Kg/cm².
The panel obtained will form a reinforced concrete plate with a core of polystyrene.
The double EMMEDUE panel (PDME) is completed when it is put in place with concrete with Rck not less than 250 Kg/cm², between the two plates of polystyrene. Such concrete constitutes the bearing element together with the internal reinforcement.
Externally from the panel, a layer of traditional or pre-mixed cement plaster with the same characteristics and modalities of application of the single curtain wall panel is applied.