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Energy efficiency of ventilated façades with synthetic wood cladding.

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On March 19, 2013
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synthetic ventilated façade
synthetic wood façade claddingThere is a direct relationship between energy consumption and CO₂ emissions. The greater the increase in consumption, the greater the increase in emissions, which is why energy efficiency is one of the main instruments for restoring the proportion of greenhouse gases in the environment.
More than one third of the energy consumed in Europe is due to buildings. Of this energy consumption, almost half is due to air conditioning (heating and cooling), i.e. the energy we have to put into buildings in winter and summer to make them comfortable.
 This is why the basis for energy savings will be to achieve a reduction in the building's energy demand, and this reduction will be more efficient if the main focus is on the part that consumes the most energy: air conditioning. With the correct integral insulation of the building's external envelope: façades, roofs, floors, thermal bridges, etc., we can achieve buildings that consume up to 75% less than they do at present.
ventilated façadeThe placement of façade cladding with synthetic wood using rigid extruded polystyrene insulation boards between the existing façade and the new cladding, is ideal for insulation of enclosure walls, its main benefits being perceived in the increase of living comfort and the reduction of the risk of condensation.
External thermal insulation systems such as ventilated façades with synthetic wood cladding are particularly interesting construction solutions in energy refurbishment processes, since, by intervening on the outside, there is no interference for the users of the dwellings or premises, their useful surface area is not reduced and the building is aesthetically and economically revalued.
This is a delicate and exposed installation, although it is the closest solution to the ideal of thermal control of the building, as it makes the most of the thermal inertia of the construction and, above all, thermal bridges are almost completely eliminated. Since the intervention to install the insulation takes place on the outside of the building, it will be the preferred solution in cases of thermal rehabilitation, as it avoids interfering with the users of the building or dwelling as much as possible. In addition, it provides maximum protection of the enclosure against climatic aggressions.
The ventilated façade is particularly noteworthy in this respect, where, on the one hand, heat dissipation takes place in summer conditions of intense solar radiation and, on the other hand, in winter conditions, the evaporation of any condensation. This is thanks to the highly ventilated chamber formed between the insulation and the cladding.

Main advantages of exterior insulation.

Both in new construction and in renovation, the installation of external insulation has great advantages over traditional internal insulation systems (in which the insulation is interrupted at the junction of the slabs).
1. Thermal bridges are minimised and condensation is prevented.
2. The continuity of the thermal insulation avoids temperature differences between the different points of the building's construction elements.
3. Thermal shocks are avoided.
4. The enclosure can make better use of its thermal inertia.
5. The construction process is simpler and faster.
6. There is no decrease in the usable area inside the dwellings.
7. The inhabitants of the dwellings are not disturbed with.
8. At the same time as insulating, decorating and renovating facades.
9. The system increases the economic value of the property.
10. Rapid amortisation. Sources:

AIPEX and Fundación la casa que ahorra.

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