Xella Group is a European building materials manufacturer headquartered in Duisburg, Germany. The company specializes in walling and insulation solutions, producing autoclaved aerated concrete (AAC) blocks and panels, calcium silicate units, and mineral insulation boards sold under brands including Ytong, Hebel, Silka, and Multipor.
Its materials are used in residential, commercial, and industrial construction for load-bearing and non-load-bearing walls, façades, partitions, and retrofit insulation, with characteristics such as thermal efficiency, fire resistance, and acoustic performance. Xella operates manufacturing sites and sales organizations across multiple European countries and selected international markets, supplying complete wall systems and prefabricated elements alongside technical support for design and installation.