From raw materials to recycling: aluminium is an ideal material for a maximum level of sustainability. The proportion of renewable energy sources, especially Sapa-electric power, used in WICONA's production process is about two thirds.
Due to the high quality of aluminium, the utilisation period of the products is virtually unlimited – without any need for repainting or post-installation treatment. In these times of holistic construction considerations, easy maintenance and longevity are important factors of sustainability.
And when the windows need to be replaced after many years, the profiles will not end up as hazardous waste, but will provide a valuable recycling source. Up to 100% of aluminium can be recycled, whereby only 5% of the original energy consumption
is required for recycling.
Therefore, for the most part, aluminium is not "consumed" but "utilised" and then used again and again as window construction material in the "cradle-to-cradle" recycling process (making new products from old).
Positive CO2 balance after just a few short years
If you replace the windows in existing buildings with aluminium windows, you will already start to reduce your CO2 output within a few years. If, for example, windows with insulation values typical of the decade between 1984 and 1994 are replaced by modern windows, then the environmental stresses resulting from the replacement will have already been amortised within 1.5 years. This calculation includes all areas and processes that generate CO2, such as the recycling of the old windows, production, transportation, installation and the utilisation period of the new window. This means that you will start reducing your CO2 output after just two years.