The Czech company Vertex is tightly connected with production of fiberglass of the same name. Since 1949, the main factories were placed in Hradec Králové and Litomyšl. Both factories played an important part in forming the cities, the booming fiberglass technology required many workers for whom the company Vertex build a housing estate in Litomyšl that still exist. The factory building in Hradec Králové was recently converted to library by a Czech architect David Vávra. While Vertex focused its production on engineering and building industry, many people are aware of its existence because of the collaboration with a designer Miroslav Navrátil.