The Xella Group develops, manufactures and markets building and insulation materials. With its Ytong, Silka and Hebel brands, ... Xella is one of the world's largest manufacturers of autoclaved aerated concrete and calcium silicate units. The Multipor brand stands for non-flammable mineral insulation boards and with Ursa we are one of Europe's leading manufacturers of insulation materials. The Xella Group bundles the expertise and know-how of Ytong, Silka, Multipor, Hebel and Ursa and is continuously developing these brands. Xella is one of just a few European building materials companies to operate its own Research and Development Center which focuses its work on three main areas: Product and process research, applied research and construction physics. Xella products are sustainable both in manufacture and use. They also undergo a process of continuous development. Our products therefore make an important contribution to the construction of energy-efficient, high-quality buildings and consequently also to environmental protection and the conservation of resources. Our products have received numerous awards and certificates for their environmentally friendly characteristics. Xella is there, on-site, where perfect solutions from planners, architects and construction companies are in demand. With 91 plants in 20 countries and sales organizations in more than 30 countries, as well as 6,100 employees, Xella is flying the flag internationally. read more