A well-insulated house not only protects against heat loss in winter, but also against heat in summer. To keep the inside of the house pleasantly cool when outside temperatures rise, good insulation of the top floor ceiling and insulation of the facade are particularly recommended. To achieve a comfortable and healthy indoor climate, the insulation material should be of high quality and match the characteristics of the house. Likewise, the thermal conductivity of the insulation materials is important.
A good insulating property can be recognized by the thermal conductivity level (WLS). The lower the WLS, the better the insulating property. The heat transfer coefficient or the so-called U-value also plays an important role in the selection of the insulation material. The U-value measures how much heat passes through a component of the insulating material. Again, the smaller the U-value, the better the insulating effect. Natural and ecological insulating materials are particularly suitable for providing the best possible protection against cold and heat in both winter and summer.
Since the various insulation materials also differ in price, a complete renovation of the house is not always possible for financial reasons. The non-profit consulting company co2online therefore recommends insulating the top floor ceiling first. Compared to roof insulation, insulation of the top floor ceiling is relatively inexpensive and still prevents significant heat loss in the house in winter and high temperatures in summer.
The measures for insulating the exterior walls with, for example, a thermal composite system or with a curtain wall represent the most expensive variant. If there are gaps in the masonry, core insulation of the gaps is a cost-effective alternative. In all cases, it is advisable to seek the advice of a professional energy consultant. Numerous measures for energy-efficient refurbishment are subsidized by the state.
Source: co2online
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