Owens Corning has announced a significant investment in its FOAMGLAS® insulation plant in Klášterec, Czech Republic, marking a strategic expansion that will increase production capacity by 50 percent while reducing carbon intensity. The global leader in insulation, roofing, and doors is reinforcing its commitment to sustainability and innovation in the building products markets through this initiative.
The investment targets the production of FOAMGLAS® cellular glass insulation, a material renowned for its performance, longevity, and high quality in building insulation applications. As a key component of Owens Corning’s building products portfolio, the material serves commercial and high-rise residential buildings, providing solutions that support construction agendas centred on longevity and durability.
The capacity expansion will address growing demand for FOAMGLAS® cellular glass insulation products, particularly in Europe’s expanding flat roof markets and for the company’s signature FOAMGLAS® T3+ cellular glass product. The enhanced production capabilities will position Owens Corning to better serve customers across the region while maintaining its market leadership position.
Beyond capacity expansion, the investment incorporates measures to enhance energy efficiency and increase renewable energy use in operations, directly reducing the carbon footprint of the company’s products. These sustainability initiatives align with the European Green Deal and address key decision criteria increasingly important to customers in the building materials sector.
Owens Corning FOAMGLAS® has established itself as an industry pioneer through innovative practices spanning decades. The company implemented the first worldwide application of 100 percent electric glass melting in 1995, demonstrating early leadership in environmental sustainability. The division has continued this trajectory with initiatives including recycled content integration, Environmental Product Declarations for many products, and the introduction of FOAMGLAS® T3+ technology in 2015.
Recent sustainability efforts have included reducing single-use plastics in packaging in 2020 and incorporating recycled products into manufacturing processes. These initiatives reflect the company’s commitment to customers, markets, and employees while addressing evolving environmental expectations in the construction industry.
According to Jan Coerts, general manager of Owens Corning FOAMGLAS® Europe, the investment represents part of the company’s ongoing commitment to building and construction markets. The focus on innovation and sustainability aims to provide customers with optimal solutions to meet their needs while supporting industry growth.
The modified and expanded production line at the Klášterec plant is scheduled to commence operations in the second quarter of 2026. This timeline reinforces Owens Corning’s strategic focus on Europe as a core geography for building products, positioning the company to capitalise on regional market opportunities while maintaining its competitive advantages in cellular glass insulation technology.
The Czech Republic investment demonstrates Owens Corning’s confidence in European market growth and its commitment to localised production capabilities. By expanding capacity while simultaneously reducing environmental impact, the company is positioning itself to meet evolving customer demands for sustainable building materials without compromising on performance or quality standards.
