Our heritage


Tessenderlo factory,

The roots of Pittsburgh Corning go way back to the 1930's in the United States. Two American companies, Pittsburgh Plate Glass Company and Corning Glass Works, both leading companies in the American glass industry, founded Corning Corporation in 1937. During the following decades, the industrial group acquired an immense know-how and an extraordinary expertise in the industrial usage of glass as an insulation.


Factory in Klástereč nad

Ohri, Czech Republic


In 1962, a business was founded in Europe, and a production unit was constructed on the Belgium company site in Tessenderlo.

In 2000 Pittsburgh Corning Czech Republic was founded and the construction of the production plant in Klášterec nad Ohří began. This production plant was designed  with the latest available technologies in the foam glass industry and became operational in 2008.  Nowadays, FOAMGLAS® products are manufactured in the production facilities of Tessenderlo (Belgium), Klášterec (Czech Republic), Yantai (China), Sedalia (USA) and Fresno (USA). Pittsburgh Corning Europe is represented in all major European countries and actually employs about 450 people.

Since July 2017, Pittsburg Corning is owned by Owens Corning.  Owens Corning (NYSE: OC) develops, manufactures, and markets insulation, roofing, and fiberglass composites. Global in scope and human in scale, the company’s market-leading businesses use their deep expertise in materials, manufacturing, and building science to develop products and systems that save energy and improve comfort in commercial and residential buildings. Through its glass reinforcements business, the company makes thousands of products lighter, stronger, and more durable. Ultimately, Owens Corning people and products make the world a better place. Based in Toledo, Ohio, Owens Corning posted 2017 sales of $6.4 billion and employs 19,000 people in 37 countries. It has been a Fortune 500® company for 63 consecutive years. For more information, please visit www.owenscorning.com.