Recycling comes in through the window

Saint-Gobain Glass France has just signed several contracts to recycle glass from end-of-life windows to save energy and raw materials.

Did you know that a metric ton of recycled glass, also called cullet, saves 300 kilos of CO2? This figure alone is indicative of just how important it is to recycle our materials in order to produce sustainably. This was the aim for Saint-Gobain Glass when it signed a contract with five companies specializing in waste collection. The project - currently in its pilot phase – primarily concerns the Aniche and Salaise floats (France).

 So, how does it work? These companies first collect end-of-life windows from various sites, transport them and then sort and process the glass. This collection process is an extremely delicate step as it takes just one error - a piece of glass falling on the ground or coming into contact with another material - to impair the quality of the cullet resulting in its no longer being useable to manufacture flat glass.

After processing, the cullet is then transported to the plants and fed back into our glass furnaces. Saint-Gobain Glass France’s partners have committed to guaranteeing cullet quality compatible with that needed to manufacture new flat glass.

Recycling raw materials is a major issue for the Group, which has committed to promoting the circular economy and limiting the environmental impact of its businesses. Today, Saint-Gobain glass includes 30% cullet. The aim is to achieve 50% by 2025.