Rockwool decarbonizes its insulation solutions, from production to recycling

The company recently announced a new €100 million investment to electrify two production lines at its Puy-de-Dôme site. The company also received the EcoVadis Platinum medal (82/100), placing it in the top 1% of the world's best-performing organizations in terms of corporate social responsibility.

In line with this momentum, several flagship initiatives demonstrate ROCKWOOL's ambition in terms of decarbonization and the circular economy.

Investment of 100 million euros for the electrification of two production lines at the Saint-Éloy-les-Mines site

As early as 2015, ROCKWOOL had already modernized one of the three lines at its Puy-de-Dôme site by adopting electric melting technology to replace coke melting. Continuing this transition, the company now plans to also equip the site's two other lines. This commitment is part of a dynamic already well underway: between 2023 and 2024, CO2 emissions per ton of stone wool produced decreased by 19%. These results are the result of the site's excellent energy performance of 2,39 MWh/AGW, a reduction of almost 5% over 4 years. The Saint-Eloy-les-Mines site already has a photovoltaic panel installation, in line with the group's climate objectives to reduce the energy footprint of ROCKWOOL sites around the world. This momentum will continue with the installation of additional photovoltaic panels, the final deployment of which is planned for 2026.

More than 4.000 tonnes of rock wool recycled thanks to Rockcycle

A pioneer in materials recycling, ROCKWOOL has, since 2012 in France, developed Rockcycle, a collection and recycling service for stone wool products from construction, renovation, and demolition sites. In 2024, more than 4.000 tons were recycled in France, bringing the total to 8.000 tons over five years. Waste sent to landfill also decreased by 3% between 2023 and 2024. ROCKWOOL France is a member of VALOBAT, the approved eco-organization that offers multi-material solutions for the recovery of construction waste.