Windows and/or glazings are dismantled from building before replacement (renovation) or demolition.
Windows and/or glazings are collected separately from other building products.
Glass is separated from other window components (aluminium, plastics, wood, etc.).
Glass is cleaned from impurities to fulfill end-of-waste criteria. Once cleaned, ‘Cullet’ from building glass should primarily be used in flat glass making (closed-loop recycling). Depending on the ‘cullet’ quality, it can be recycled in other glass sub-sectors.
‘Cullet’ is introduced in furnaces to produce new glass with minimal environmental impacts: lower energy consumption, less virgin raw materials, less CO2emissions.
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