The VELUX Group has entered a 10-year agreement with ArcelorMittal concerning the supply of recycled and renewably produced steel. In 2023, the two companies agreed to enter a partnership to lower the carbon footprint of the steels used in VELUX roof windows by up to 70 percent, compared with conventionally produced steel. This co-operation involved the testing and validation of ArcelorMittal’s XCarb® recycled and renewably produced steel and its performance in VELUX roof window hinges and installation brac ...