What is "xella"

Xella International GmbH is a corporate group with headquarters in Duisburg, Germany, manufactures and markets building materials, gypsum fibreboard and cement-bonded dry lining panels together with lime and limestone. The company is active in three business segments: Building Materials, Dry Lining and Lime.

The Building Materials Business Unit sell Aerated Autoclaved Concrete (AAC) and Calcium-Silicate blocks to the construction industry, under the brands Ytong, Hebel, Multipor and Silka. In Raw Materials, the company sell Lime and Limestone under the Fels brand for steel manufacturers, the construction industry and the environment sector. In Dry Lining, the company sells Eco-friendly Gypsum Fiber wallboard under the brands Fermacel and Aestuver for insulation and fire protection.