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Sheepskin coat winter fashion woman in long coatMARCHIO SPIDEREX NEG

Watch the video about the application of the Safe Insulation System spideREX K8  and the one about the fire resistance test! You will see the advantages of spideREX K8  kit by Rexpol.
Not all insulation systems are the same

Advantages and application

AdvFireges and resistancenn

From the traditional insulation system to spideREX K8 Safe Insulation System

How a traditional insulation system is composed

The external insulation is a technique to obtain thermal and acoustic insulation of the walls of a building, by applying insulating material to the surface of the external walls. It is possible to define the right thickness of the chosen insulating  material, in order to reach the pre-established energetic goals. The insulation is achieved by applying insulating panels (mineral wool, wood fiber, cork, mineral foams, Expanded Sintered Polystyrene, Extruded Polystyrene, polyurethane) to the walls with glue and screw fixings. Then the panels are covered by a net and a thin layer of skim coat (5/6 mm) to which, at a later stage, will be applied the chosen finish.

The problems of the traditional insulation system

Nowadays, for what concerns the traditional insulation system, inside the insulating layer is normally applied a thin plaster layer. On this one is placed a net with the function of supporting the layer of plaster, on which to apply then the finish. This type of insulation system is quite effective in terms of thermal and acoustic insulation but it has some problems, mostly mechanic, of fire resistance and of thermal lag.

SpideREX K8, the real revolution is the simplification of the system

SpideREX K8 is the new system patented by Rexpol that transforms the traditional concept of external thermal insulation of buildings. It’s an innovative system of  facade insulation that consists of a special EPS  (Expanded Sintered Polystyrene) thermal-insulating panel and of a pre-applied three-dimensional net for the reinforcement of the plaster layer. The net is geared towards applying screw fixings and it allows the mechanical spraying of special plasters, always maintaining the same thickness in terms of millimeters. In this way it’s possible to guarantee extreme technical performances combined with the maximum application speed and ease of installation.

A plaster thickness that goes well beyond the standards

Fig. 1 – Thickness of the plaster applied on a traditional insulation system

Fig. 2 – Thickness of the plaster applied on spideREX K8

Fig. 3 – Detail of the RXR net. You can notice the distance (15 mm) between the net and the RXL panel

While in the traditional insulation system (Fig. 1), the average thickness of the skim coat (usually 5/6 mm in total) is difficult to calculate precisely, the thickness of the plaster that is applied in the Safe Insulation System spideREX K8, goes well beyond the standards.

In the spideREX K8 System, in fact, the total amount of plaster applied (RXM base plaster or RXM3 structural plaster) must be at least 25 mm, or 10 mm more than the thickness of the calibration net. (Fig. 2).

In Fig.3 it’s possible to notice the distance (about 15 mm) between the net and the panel on which the plaster will be applied.

 

Thicker plaster layer, guaranteed performances

The thickness of the plaster layer is one of the most important parameters with which to measure the Insulation System performances, because it guarantees:

  • Thermal insulation (decrease of thermal transmittance values).
  • Improved thermal lag.
  • Increase in mechanical performances in case of hail, accidental impacts or application of hanging elements (lighting fixtures, exterior sun shades).
  • To be safer in case of a seismic event thanks to the continuous structure of the three-dimensional net and of the thickness of the plaster layer.
  • A higher degree of fire resistance, as the thicker plaster layer protects the underlying structure from the action of heat.
  • Improved acoustic insulation (given by the spring-mass system).
  • Ease and quickness of application: you don’t need skilled labor, and the application of the plaster layer is mechanized.
  • A perfectly done work. The thickness of the plaster layer is defined according to the needs. Perfect calibration and plaster leveling is guaranteed.

AdvFireges and resistancenn

Advantages and application

Watch the video about the application of the Safe Insulation System spideREX K8  and the one about the fire resistance test! You will see the advantages of spideREX K8  kit by Rexpol.
Not all insulation systems are the same