In Germany, according to the "Kreislaufwirfschaft Bau", 14.6 million tonnes of construction site waste were generated in 2014.  In a position paper, Glass for Europe estimate that float glass accounts for less than 1% of construction site waste.  Even this apparently small amount is not negligible as glass is predestined for closed-loop recycling.  The use of glass cullet not only conserves natural raw material resources, but also reduces the melting energy required, and thus, also the CO₂ emissions.

IThe aim of this research project was to provie a detailed analysis of the current situation of the recycling of flat glass in Germany.  Based on the results, the intention was to suggest means for an enhanced closed-loop recycling of flat glass.