Rehabilitation of facades ON THE OUTSIDE


different post of this blog have addressed some of the systems rehabilitation of facades and the properties and characteristics of various insulation materials that can be used in the rehabilitation of the facades of communities. Obviously, in modern times, in which the incorporation of insulating materials in all processes of restoration of facades is almost mandatory, the first decision when you have to undertake such works is the type of insulation systems used in rehabilitation facades.

Systems used in the thermal rehabilitation of facades, perhaps the most used, as it offers many advantages not only in the implementation process but also economically, is the thermal rehabilitation abroad (SATE systems).

As seen in previous articles (SATE Rehabilitation Aislamiento Térmico ETICS exterior), this is basically based on the placement of a layer formed of panels of insulating material outside the building system. The most common is to use expanded polystyrene, but you can also use other insulating materials such as extruded polystyrene.

Whether it is used to rehabilitate the faade expanded polystyrene and extruded polystyrene, the process involves attaching, by adhesives or other mechanical fasteners) on the supporting wall, the insulating material in the form of panels to subsequently cover it with a protective coating layer and made of special mortars that are seen the finishing.

The choice of insulation to use will depend largely on the needs of insulation and waterproofing of the homeowners, needs that are largely determined by weather conditions. Thus, in conditions where temperatures are extreme, the insulation should be higher density to achieve the same level of performance and if related phenomena water cn dominate the climatology, it is more appropriate that the rehabilitation of the facade materials are used insulators with low water absorption to provide insulation while providing waterproofing of the facade. If extruded polystyrene and expanded polystyrene are compared to polystyrene foam has a lower density (10 to 30 kg Aislamiento Térmico m2), low resistance to mechanical compression and water absorption is higher than the extruded polystyrene. By contrast, extruded polystyrene is denser (20 to 55 kg Aislamiento Térmico m2), have greater resistance to mechanical compression and absorbs little water.

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